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Spectra Logic TAC/COM SERIES User's Manual

1. MASTER SLAVE SFM TACTICAL COMMUNICATION SYSTEM ES TH450 TACTICAL COMMUNICATION SYSTEM TH460 Se e CHAN CHAN afe moo SCA A a Eum MER Hl D ame A e OFF en 3 su RT2 EE Lia RT2 LIE Ci OFF o VF GUARD eG BRISTSFOREZTI O eli FOREST IMPLEX OFF GUARD J eee P ICE IMPLEX DISPLAY CHAN RADIO 50 DISPLAY CHAN INFO d SELECT NEXT EDIT HELPA RX TX RX TX STATUS STATUS 09 Deos ID TX Qs RX OFF RX 1 2 2 Accessories The Tac Com family encompasses numerous specialized accessories to extend system capability as well as transceivers and the control heads reviewed in this manual NAT transceiver capabilities are covered in separate manuals additional system components include For reference the 1 2 2 1 Remote Mount VHF FM Transceivers NT030A xxx Low Band NT030B xxx Low Band NT136 xxx High Band NT150 xxx High Band NTX066 xxx Mid Band NTX138 xxx High Band Narrow Band Compatible available with USFS Custom Guard option NTX138E 100 High Band Direction Finding DF Capability Enhanced environmental specifications 1 2 2 2 Remote Mount UHF FM Transceivers NT403 xxx Low Band NT450 xxx High Band NT450x xxx High Band NT80
2. TACNCOM P100 14 Dee 16 17 oe 19 Epp R ha N gt OZ Tra OTT GH CH ZC P rmo NORTHERN AIRBORNE TECHNOLOGY LID DATE 1925 KIRSCHNER RD KELOWNA B C a PART NUMBER DRAWING NUMBER FILE NUMBER UG 199 TH402 1 TH402 1 405 TH402 1 405B DESCRIPTION SHEET A 129 E DESIGNED BY DRAWN BY APPROVED A DESIGNED BY DRAWN BY APPROVED BY 5 06 Rev 4 10 Tac Com Control Head Manual Section 3 Operation 3 1 Introduction Information in this section consists of the functional and operating procedures for the Tac Com Control Heads 3 2 General To understand the operation of the Tac Com control a quick review of basic FM radio operation is helpful here It is normally a requirement to carry out the following general operations on any FM radio system Turn the radio on and off Adjust the receive volume of the radio Select the required channel on the radio Optionally select enable any special tones required for proper network or repeater operation 5 Optionally select enable any guard receive or transmit functions Peor It is also helpful to show visually that the radio is transmitting or receiving so that the pilot is assured of correct performance If the radio is frequency agile e the frequency of operation can be set directly by the operator a method must also be provided to enter the specific frequency data
3. 10 HOLO3NNOO CZ AVN 01 sejoadosg pue 8 2 429 SNZG QNIH38 SJONLNON LHOI3H MJA OSZHL SE S M3I LNOHJ OSZHL 0 107 Laaa 1X38 122135 3588 200 NYH 5 5 0wouovi nad SNOISN3WIQ 3NVS SQV3H 1041 02 53435 OSCHL OOTH 002 2 Qv3H I0ULNOI OSZHL v 30 MIN 16 INAP vZ MEET SIBNAN lNvd 0530 2 8 VNMO134 S3NHOSMD GZEL 011 A9010NHO31 NH3HLSON dOl OSPHL 3170 NOISIA3U N pue jenuapyuog TOYLNOD 531435 OSPHL V JO MIA NIA OGvH 1 amp 83 MAIN 3016 OSPHL 440 XS ws RAND X1 x8 Dan Liga X3N 7103138 l Gs 102 95 AW1dS10 2 713 Lev 21 OSFHL NOLLYOINNWNOO 1 212 4 WIG 1 SES BEL SIOALNOD 5020 ONIH38 Hld30 ea REVISIONS DESCRIPTION FORMAT CHANGES ONLY FEB 8 96 FM TACTICAL COMMUNICATION SYSTEM Se mane CHAN M DISPLAY
4. CONNECTOR MAP FOR THE TAC COM CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH402 1 REV AB This Connector Map is for Tac Com Control Heads with serial numbers storting at 1128 FF 8 E TERESA TH V 814 M SS D VIV OIDJEJEIDIPILIS C LITIAIRIRIAIWITIS Ae AR rk p TITIS S W SIS 0 N LUNGS 0 N VIN DIT DID F C F 1 2151415 7 10 12113 000000 0 0 0 0 309 14 15 16 17 18 19 25 24 ES ES qos RER ER WMA qv E PS TR PRE E qo ETE 6 6 6 IR IR JR DIDIDIDIDID E JEJE NININ DIDID NORTHERN AIRBORNE TECHNOLOGY LTD DATE 1925 KIRSCHNER RD KELOWNA CH402 1 CH402 1 405 CH402 1 4058 DESCRIPTION DATE __________ CONNECTOR MAP 10 FEB 1991 DESIGNED BY DRAWN BY APPROVED BY A BEER ri MAREC ur Confidential and Proprietary to NAT CONNECTOR MAP FOR THE TAC COM CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH402 1 REV A B This Connector is for Tac Com Control Heads with serial numbers starting at 1001 XA 5 V 0 OO lt Om DADO A C m rmi A ZC Grat toi IO Actu R E M F E 5 10
5. FM TACTICAL COMMUNICATION SYSTE Exam cto V DISPLAY CHAN RADIO INFO HE O PROPRIETARY AND CONFIDENTIAL TO NAT LTD DESIGNED MOS SCHER TOM MWS Anat NORTHERN AIRBORNE TECHNOLOGY LTD DATE NA bag TAC COM II CHECKED SLAVE CONTROL HEAD SIZE CAGE CODE PART NO REV SHEET APPROVER 3AB01 TH460 1 01 1 2 FILE 905 0101 DWG DWG TYPE FACEPLATE DWG NO TH460N905 0 TAC COM FACE PLATE DRAWING OF A NAT TAC COM CONTROL HEAD 9 TAC COM a CH201 om MANE ple RTE Ar QD FACES SP RT 2b 52 POLICE GUARD des O e A NORM IMPLEX DISPLAY CHAN OFF SELECT NEXT rF EDIT OFF O DISPLAY gt Q On oscar Confidential and Proprietary to NAT NORTHERN AIRBORNE TECHNOLOGY LTD 1929 RIRSCHNER RD KELOWNA 8 6 DESCRIPTION PART NUMBER DRAWING NUMBER FACEPLATE CH201 CH200NNF 905 DATE DRAWN BY APPROVED BY 21 JUNE MITCH Q STINSON REVISION 1991 FACEPLATE DRAWING OF A TAC COM CONTROL HEAD La 5 75 RT 1D 05 5 P RT 2D SCANNING RT 30 2 POLICE RT 4D 28 HOSPITAL gt SELECT NEXT EDIT
6. OFF In general GUARD volume control permits a zero volume level without turning the radio off but in some instances such as USFS GUARD RX controls this will not be true OAS government contracts require that this level not go to zero regardless of pot setting with a minimum fixed output at all times A second set of controls is provided for guard operation only when H U or V interface cards are installed Note that the GUARD volume control has no OFF detent position Forcing the control fully counter clockwise may cause switch damage The internal minimum guard volume adjustment is accessible through the right side of the control head The additional guard controls provide selection of the guard 1 and guard 2 channels plus a separate RX status indicator Page 3 4 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 3 4 1 2 RX Receive Volume Control FM TACTICAL COMMUNICATION SYSTEM CHAN D Semer RT1 127 RADIO ant HOSPITAL e ER 0 CHAN RADIO SELECT NEXT EDIT ue a Os C OFF RX TX STATUS The RX volume control is adjusted via the round knob for each radio Tac Com Control Head Manual RX Volume Controls Rotating this control fully counter clockwise to OFF turns the specific radio off If all controls are
7. AUX GND SERIAL GND SERIAL GND SERIAL RADIO NEXT CONNECTIONS TO CHAN SELECT REMOTE SWITCHES ARE OPTIONAL CHAN SELECT TAC COM CONTROL HEAD Noms 14 AND 5V LIGHTS MAY BE WIRED WHEN APPLICABLE SYSTEM CONNECTOR DB25S DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR IT MUST BE CONNECTED TO THE AIRFRAME GROUND ALL WIRING SHOULD BE 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG REVISION DATE nat NORTHERN AIRBORNE TECHNOLOGY LTD SEP 28 89 DESIGNED BY DESCRIPTION JUN 24 91 MQS TAC COM CONTROL HEAD POWER SUPPLY AUG 16 93 JUL 10 95 DRAWN BY PART NUMBER DRAWING TYPE SHEET MQS CH402 1 INTERCONNECT 1 1 APPROVED BY DRAWING NUMBER FILE NUMBER NAT R amp D 10 1 INTERCONNECT DRAWING FOR CONNECTING I MASTER CONTROL HEAD A TAC COM SLAVE CONTROL HEAD POWER SUPPLY CARDS 400 1 REV This drowing 15 for CH Series Control Heads with serial numbers from 1044 to 1127 Confidential and Proprietary to NAT TAC COM MASTER C H TAC COM SLAVE C H SYSTEM CONNECTOR SYSTEM CONNECTOR P100 08255 d AR 100 08255 28VDC PWR 1 gt 428VDC 4 5 1 28VDC PWR 28VDC PWR 2 Ei 2 28VDC PWR 28V LIGHTS 3 amp 28V LICHTS 3 28V LIGHTS 14V LIGHTS 4 14V LIGHTS 5V LIGHTS 5 5V LIGHT
8. CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual 5 06 4 10 3 5 2 Summary of Channel Editing For each channel stored in the control head there are three possible data entries identification label ID receive frequency RX and transmit frequency TX If equipped the radio may also have tone and scan information associated with these entries Note that non agile radios can still have frequency data entered in the master edit mode for reference only but changing this data will have no effect on radio operation The ID label or channel name has no effect on radio operation and is provided for operator pilot convenience in identifying the selected channel Any alphabetical character the numbers 0 9 and some punctuation space may be inserted the ID label Help can be used at any time when editing to give instruction for the operation being performed The exact data that pressing HELP provides depends on the current activity as it is context sensitive Editing tone locations and pressing HELP will bring up the tone look up table Editing channel frequencies will bring up frequency information and so on It is important to remember that while frequency data may be edited the radio itself must be an agile radio with the AGILE MODE ENABLED on the interface card for any change to actually take place Crystal controlled radios or PROM coded radios which allow editin
9. Can t Increase to Full Brightness 2 6 2 5 5 Amber RX Squelch light comes on but no RX audio is heard 2 7 2 6 Final Inspection 2 7 2 7 Continued Airworthiness 2 7 2 8 Installation Drawings 2 8 2 8 1 Outline drawings 2 8 2 8 2 System Connector J 100 2 8 3 3 1 Introduction 3 1 3 2 General 3 1 3 3 Initial Operation 3 2 3 3 1 Power up Help 3 2 3 3 2 Initial Operating Display 3 2 3 4 Front Panel Controls 3 3 3 4 1 Radio Specific Controls 3 4 3 4 2 General Controls NORMAL Operation 3 6 3 5 Editing 3 10 3 5 1 Channel Editing 3 11 3 5 2 Summary of Channel Editing 3 14 3 5 3 Summary of Channel Labels 3 15 3 5 4 Summary of Subaudible Tones 3 16 3 6 Status Line Editing 3 19 3 6 1 NEXT and SELECT Switch Use 3 20 3 6 2 Status Edit Features 3 21 3 7 Channel Display Summary 3 23 3 7 1 Display Switch Set to ID 3 23 3 7 2 Display Switch Set to RX 3 24 3 7 3 Display Switch Set to TX 3 24 3 8 Changing Display Brightness 3 25 3 9 Scanning 3 25 3 9 1 Scan Modes 3 27 3 10 NAT NTX138 Wide band Narrow band Operation 3 28 3 11 Master Edit Mode 3 29 3 11 1 Entering Master Edit Mode 3 29 3 11 2 How Data is Stored in the Control Head 3 30 3 11 3 Editing Considerations 3 30 3 12 Installation amp Configuration Mode 3 31 3 12 1 Entering Configuration Mode 3 31 3 12 2 Configuration Option Table 3 32 Jan 4 2006 Page iv ENG FORM 820 0110 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10
10. HELP OFF e 95 Q DISPLAY CHAN RADIO 50 GUARD TAC COM 2 N SCAN OX K CH 7 GUARD 5 0 Confidential and Proprietary to NAT REVISION DATE NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA B C DESCRIP TION PART NUMBER DRAWN BY DRAWING NUMBER CH400NNNRR905 21 JUNE 1991 MITCH Q APPROVED BY STINSON INTERCONNECT DRAWING FOR THE TAC COM I CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARDS CH400 1 REV A amp B This drawing is for Tac Com Control Heads with serial numbers TAC COM CONTROL HEAD SYSTEM CONNECTOR P100 08255 TACNCOM 1001 to 1045 28VDC PWR 1 gt op 28VDC 28VDC PWR 2 ES 3 28V LIGHTS 14V LIGHTS 4 AN 5V LIGHTS 5 KEAN SPARE 6 TX DATA OUT 7 Luc CTS 8 DTR 9 Luc RX DATA IN 10 ENC SPARE 1 SPARE 12 CHASSIS GND 13 gt PWR GND 14 25 PWR GND 15 _ m LIGHT GND 16 LIGHT GND 17 LIGHT GND 18 SPARE 19 SERIAL GND 21 N C S En SERIAL GND 22 PAS 14V amp 5V LIGHTS MAY BE WIRED WHEN APPLICABLE SPARE 23 DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR SPARE 24 IT MUST BE CONNECTED TO THE AIRFRAME GND 25 ALL WIRING SHOULD 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG FOR REFERENCE O
11. NORTHERN AIRBORNE TECH REVISION NOLOCY LTD TIZI KIRSCHNER RD KELOWNA BU DRAWING NUMBER PART NUMBER FILE NUMBER CH400 1 405 1 400 1 DESCRIPTION CH400 1M405 1 DATE 27 AUG 93 SHEET CONNECTOR MAP 10F 1 DESIGNED BY DRAWN BY SCOTT MOORE APPROVED BY 1 CONNECTOR FOR THE TAC COM CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH400 1 REV BIC This Connector Map is for Tac Com Control Heads with Serial Numbers 1044 to 1127 R E 2 MIT RIRIRIS E C 8 12 EH 18 15 5 D 1 5 0 7 5 o T ViviT W G i P T NIAlEJEJAJE s 5 NM ON R 510 2 FU nlo amp n Sat NIVID 2 6789 11 00 0 0 ee 000000 P100 20 21122125 24 EJEJE R R D cele N NN DDD FOR REFERENCE ONLY SEE DRAWING 402 1 405 FOR NEW CONTROL HEAD INSTALLATIONS REVISION NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA PART NUMBER DRAWING NUMBER FILE NUMBER 400 1 405 2 CH400 1 405 2 SHEET DATE 1 1 27 AUG 93 DESIGNED BY DRAWN BY APPROVED BY SCOTT MOORE NAT PROD 449 I Confidential and Proprietary to NAT
12. and identify and store the information Every manufacturer attacks these requirements in a different manner and since the Tac Com system provides the ability to interface with other manufacturer s equipment as well as NAT s own transceivers a uniform method of operation must be provided How each common operating function is accomplished in the Tac Com system is described in the following sections It is also possible to interrogate the control head itself for help in learning how to operate it simply by pressing the HELP button during the first power up screen or at any time while editing The on ine help function for the system is comprehensive enough to address most operational questions and corrects a long standing problem in the cockpit relating to lost or missing operators manuals Every control function and valid editing choice is fully explained through this system which can be activated by pressing the HELP button It is important to remember that the many radios simultaneously controlled by the Tac Com system may have very different features and attributes as well as frequencies If the radio was incapable of some functions prior to connection to the Tac Com head it will not suddenly acquire all the functions possible just by connection to the Tac Com control Crystal controlled radios such as the FliteFone 40 for example do not suddenly become agile radios and Flexcomm radios don t scan simply because they are connected to a Tac
13. engraved panel lines tie the EDITING functions together The alternate EDITING functions become active whenever the EDIT switch is in any position other than OFF 3 4 2 1 Display Switch FM TAC COM SYSTEM 2 R2 DISPLAY CHAN RADI ADIO SELECT NEXT EDIT OFF Que 3005 C San STATUS OFF Display Switch The DISPLAY switch works the same in both NORMAL and EDIT modes of operation The DISPLAY switch determines what data is shown on the individual channel presentations for each radio Either the alphanumeric channel name or identification ID position or the actual channel frequency RX and TX positions can be displayed When editing this also determines what will be edited Whatever data is visible is the material that can be edited During normal operation the crew can select whatever presentation is the most helpful to them which is generally the ID or channel display The cursor or left hand arrow shows which radio is set up for channelling or editing Jan 4 2006 Page 3 7 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual 3 4 2 2 CHAN To E TAC COM SYSTEM CHAN s nat RT2 sn 2 5 ES LAY RX sQ SELECT NE
14. 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG TX DATA OUT RESERVED RESERVED 40 RX DATA SW POWER ON RESERVED CHASSIS GND PWR GND PWR GND REMOTE SWITCHES OPTIONAL LIGHT GND GND GND GND GND GND LIGHT LIGHT AUX SERIAL SERIAL SERIAL RADIO NEXT CHAN SELECT CHAN SELECT GND SLAVE CONTROL HEAD Y INTERFACE SERIAL 1 0 CONNECTOR PLUG DA15S SERIAL PORT 1 1 TX 1 SHIELD 1 TH460 DESCRIP TION INTERCONNECT NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA B C 16 AUG 93 PART NUMBER SHEET DRAWING NUMBER TH460N403 1A FILE NUMBER TH460 403 1A DATE 15 OCT 91 DESIGNED BY DRAWN BY APPROVED BY SCOTT MOORE NAT PROD 119 CONNECTOR MAP FOR THE TAC COM CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH400 1 REV A B TAC COM This Connector Map is for Tac Com Control Heads with Serial Numbers 1001 1043 2 ck 8 PIX H V A A D RID S G ETA T 5 W H G U N T D TAC COM P100 5 515 LILIL GIGIG N NN Confidential and Proprietary to NAT D D D FOR REFERENCE ONLY SEE DRAWING CH402 1 405 FOR NEW CONTROL HEAD INSTALLATIONS
15. 33 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD
16. 722 In that case make the following checks on the C 962 722 25 pin audio connector a Check pin 19 for 28 Vdc relative to ground b Check pins lt 10 gt lt 12 gt and lt 20 gt for continuity to ground below 0 5 ohms Pin lt 12 gt should be a separate wire to ground Check pin 16 28 pin 15 14 pin 17 5 for proper lamp dimmer voltage 2 4 2 Power On Checks WARNING High volume settings can cause hearing damage Set the headset volume control to the minimum volume setting prior to conducting this test and slowly increase the headset volume level to a comfortable listening level Power up the aircrafts systems with the Tac Com control head and RT s installed and turn ON all of the radios and other accessories required for this system Page 2 4 Jan 4 2006 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual Make the following performance checks refer to Section 3 Operation a Confirm that the desired radios installed the assigned Tac Com control head slots this data appears at power up on the display If any aspect of the radio assignments is incorrect or if messages such as waiting for slave appear when there is no slave etc the set up of the control head may be incorrect Consult the Installation Configuration Mode section of th
17. 905 0 1 01 Faceplate of Typical Tac Com Slave TH460 Faceplate CH200 NF905 Faceplate of Typical Tac Com CH200 LCD Faceplate CH400 NNRR905 Faceplate of Typical Tac Com CH400 LCD Faceplate 2 8 2 System Connector J 100 DRAWING REV DESCRIPTION TYPE CH400 1 403 1 Tac Com System Connector s n 1001 1043 Interconnect CH400 1M03 2 Tac Com System Connector s n 1044 1127 Interconnect CH402 1 403 B Tac Com System Connector s n 1127 and up Interconnect TH402 1 403 0 1 03 Tac Com System Connector s n 1001 and Interconnect CH410 403 B Tac Com Master Slave Installation Interconnect TH460 403 A Master Slave Installation Interconnect TH460 403 1A A Master Slave Installation with DTE DP12 Interconnect CH400 1 405 1 Tac Com System Connector s n 1001 1043 Connector Map CH400 1 405 2 Tac Com System Connector s n 1044 1127 Connector Map CH402 1 405 B Tac Com System Connector s n 1127 and up Connector Map TH402 1 405 B Tac Com Il System Connector s n 1001 up Connector Map Section 2 ends after these Drawings Page 2 8 ENG FORM 805 0108 DOT Jan 4 2006 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD M 3400W 11005 16 SNAP bz CI SOBINOSZHL 3NZ OSZHL man __ 10530 978 VNMOT134 Ou YINHISAIN 6261 SNYOGYIY NY3HLYON
18. CHAN RADIO SQ SELECT NEXT ES HELP 8 ST C OFF Confidential and Proprietary to NAT AN sk mat NORTHERN AIRBORNE TECHNOLOGY LTD DATE 95 TITLE TAC COM CONTROL HEAD CHECKED SCH CAGE CODE PART NO REV SHEET APFROVED 1 TH250 xNN 1 01 1 2 FILE 905 0101 DWG DwG TYPE FACEPLATE DWG NO TH250 NN 905 0 REVISIONS DESCRIPTION DATE ECR 630 CORRECTED LIGHT HOLE LOCATIONS JAN 10 97 FM TACTICAL CO Op wo ur MUNICATION SYSTE nat e KR RADIO RX TX 5 0 E DESIGNED Confidential and Proprietary to NAT nat NORTHERN AIRBORNE TECHNOLOGY LTD DRAWN TGM DATE CHECKED SETE TAC COM SLAVE CONTROL HEAD APPROVED E CAGE CODE PART NO REV SHEET 1 TH260 1 01 1 2 FILE 905 0101 DWG DWG TYPE FACEPLATE DWG NO TH260 905 0 69 TACTICAL COMMUNICATION SYSTEM EP TH 350 O dos Nele CHAN al RTI RT2 RT3 DISPLAY CHAN RADIO SQ SELECT NEXT HELP H ST gt TX C STATUS OFF Confidential and Proprietary to NAT ner NORTHERN AIRBORNE TECHNOLOGY LTD DESCRIPTION mM NEM Er NE TAC COM
19. CONTROL HEAD ae re aes PART NUMBER DRAWING TYPE SHEET T MASTERS TH350 xNNN FACEPLATE 1 2 BY DRAWING NUMBER FILE NUMBER AR OOR TH350 xNNN 905 0 TH350 xNNN 905 0100 REVISIONS DESCRIPTION DATE 1 10 LED SPACING 6 96 FM TACTICAL COMMUNICATION SYSTEM TH360 Ee st amp O CHAN DISPLAY CHAN RADIO INFO HELP Confidential and Proprietary to NAT NED net NORTHERN AIRBORNE TECHNOLOGY LTD DATE FEB 7 96 mr TAC COM Il SLAVE CHECKED CONTROL HEAD XY SIZE CAGE CODE PART NO REV SHEET 3AB01 TH360 1 10 1 2 FILE 905 0110 DWG JDWG TYPE FACEPLATE DWG NO 3605905 0 FM TACTICAL COMMUNICATION SYSTEM OR 50 MES cS HAN DISPLAY CHAN RADIO 50 79 SELECT NEXT RX TX ID TX CH ST STATUS RX OFF Confidential and Proprietary to NAT DENEN skenat NORTHERN AIRBORNE TECHNOLOGY LTD TITLE CUSTOM TAC COM Il CONTROL HEAD SIZE CAGE CODE PART REV SHEET A 1 TH450 xNNNN 1 00 1 2 FILE 905 0100 0WG 0 FACEPLATE DWG NO TH450NNNNNN905 0 APPROVED REVISIONS DESCRIPTION DATE 1395 CORRECTED LIGHT HOLES ADDED MISSING SCREW FORMAT CHANGES APR 13 99
20. FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 3 4 Master Slave Configuration One powerful configuration that NAT s Tac Com controls support is the master slave configuration In this configuration two controls can be active at the same time flight crew and medical crew for example and both can select channels and radios The extraordinary aspect of this interface is the fact that this interconnect requires only 6 additional wires to give full support to both stations Dual controls wired with other units often require hundreds of wires and still permit only a single control to be active at one time A typical master slave interconnect is illustrated below for clarification Many variations are possible and the controls can be 2 3 or 4 radio types if required gt LY d Page 1 8 Jan 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 1 3 5 Frequency Data Considerations Tac Com controls have an intelligent editor that prevents incorrect data entry when programming frequencies for a given agile radio VHF radios can receive only valid VHF frequencies UHF radios only UHF frequencies at the correct intervals and so on This greatly eases operator use and prevents many common pilot errors The C 1000 permits many types of incorrec
21. OFF then the control head itself turns off 3 4 1 3 RX TX Status Indicator RX TX Status TACTICAL COMMUNICATION SYSTEM TH25 O un e GUARD RADIO OFF DENN SIMPLEX SCAN d m m OP NORM RIZ HOSPITAL Qe OFF DISPLAY CHAN RADIO SELECT NEXT EDIT Jee RX TX RX STATUS Next to the volume controls are bi colour indicators that display TX Transmit status or RX Receive status If that specific radio is keyed to transmit the LED will be green If a signal is being received the LED will be amber A radio that is receiving may still not produce any audio if the tones or DPL codes for that channel do not match the tones or DPL codes set in the control head If tones are set to ON for a given radio from the status line then all data frequency and tone DPL code must be correct to hear the receive audio If tones are OFF then all incoming transmissions are received The indicator lights whether the logic is correct for audio or not to warn the pilot that channel is active with radio traffic of some kind If the radio is idle not receiving or transmitting the LED will be off The colour coding used for these functions corresponds to the existing indications used in the FF40 C 62 and C 1000 for pilot familiarity It is worth noting that these conventions are reversed from vehicular standards and may be conf
22. PRIORITY channels or on newer generation control heads LIST PRIORITY is provided The Scan List channels are edited in the second last digit on the ID line from normal channel edit mode For more details on scanning refer to Section 3 9 3 6 2 6 P1 P2 The Priority 1 2 channels are selected by toggling the CHAN switch Two channels are selected for each bank of channels a through d When the scan option is selected to List the priority channels are not active but are retained in memory 3 6 2 7 GUARD RCVR The RT 9600 guard functions can be from either the front panel U interface or the status line depending on which type of interface has been installed in the control head If the status line is used R or P interface the line appears as GUARD 0 off 1 or 2 For Flexcomm the guard RX may only be enabled or not from the status line as only one channel exists Front panel guard functions refer to guard transmit operation Page 3 22 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 6 2 8 PWR UP CHAN This is the channel the control head will go to when it is powered up This may be set for each radio On early Tac Com controls only a specific channel could be set but current generation Tac Com amp Il motherboards have additional non volatile memory to remember the last channel used and so can also p
23. Tac Com Control Head Manual Section 1 Description 1 1 Introduction This manual contains information on the NAT Tac Com control heads All derivative products and interface cards will be covered by manual supplements which can be obtained from NAT as required Information in this section consists of purpose of equipment features and specifications 1 2 General Tac Com control head provides exceptional flexibility and ease of operation while using minimal panel space In a Dzus panel height of only 4 inches up to four transceiver systems can be controlled and accessed using a Tac Com control head The controlled radio systems may be either NAT transceivers or combinations of different manufacturer s transceivers Tac Com controls are available in two basic families Tac Com both LED and LCD displays and Tac Com LED only Note that the Tac Com or CH series control heads have been discontinued since 1995 c Com control head variations include 2 3 or 4 transceiver support master or slav versions and custom panel lighting and support expanded channel storage up to 128 channels per radio remote channel selection display auto dimming and full software configuration of the control head Features Tac Com Tac Com Control Display 2 8 4 Radio LCD 2 3 amp 4 Radio LED Types 2 amp 4 Radio LED Channels Radio 32 NT or 56 non scanning Special HELP Alphanumeric HELP Alphanumeric Feat
24. control head s Data Entry Pad is connected to Set to O if you do not have a Data Entry Pad Port A is on the main system connector Ports B and C are on the optional auxiliary serial l O board connector Selects the radio type for each slot Make sure that the radio type selected matches the interface board installed in that slot The 450 SYS and 406 SYS options simulate the C 1000 control head with an RT 450 or RT 406F as the UHF RT SPEC SPECTRA L indicates a standard radio L1 indicates control set up with a Zone switch L2 is Reserved S W Ver 2 44 Jan 4 2006 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual FEATURE VALID OPTIONS COMMENTS S W VER 3 The number of channels available for each radio Does NOT include guard channels Ensure that the number of channels is valid for the radio type selected as follows RT9600 7200 any up to and including 126 FLEXCOMM any up to and including 127 CHANS INST 6 12 16 22 32 64 80 FLEXCOMM SYSTEM any up to and incl 125 96 99 100 125 126 NT SERIES 32 64 96 128 127 128 40 6 12 16 SYNTECH I 80 SYNTECH XTR 100 ARINC 2x5 and PARALLEL BCD any 805 1 99 ASTRO SPECTRA any NTX138 NTX066 NTX403 any RT9600 TONES 32 Set to 8 if using the internal RT9600 7200 tones Set to 32 if using the internal TAC COM tones Set to NONE if there is no RT9600 7200 guard receiver inst
25. monitoring is 3 times second for 10 15 ms sample Radio will re channel to the priority channel if traffic is detected and returns to the monitor channel after a 2 second latency All CTCSS tones or DPL codes are inactive during scanning due to lock delay Other scanning parameters depend on the radio type Page 1 11 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 5 2 Physical Specifications Height Tac Com Series Rail Height Required 250 260 and 350 360 3 00 450A 3 75 450B and 460B 3 375 450 460 4 875 Length 6 27 inches 159 3 mm excluding connector Width 5 8 inches 146 1 mm Weight 2 2 to 2 9 Ibs 1 kg to 1 3 kg depending on model Mounting Horizontal through panel Dzus mount Fits standard opening 5 clearance 5 75 panel width Requires 3 of rail height 450 series require 4 875 Front Panel Controls Radio Volume Power ON OFF One or two radio specific controls Display Contrast LCD Display Mode ID RX TX Channel Select Radio Next Edit Switch Channel Off Status Squelch Help Internal Controls Agile Channel Defeat Enable on interface cards Lamp Dimmer Voltage Panel Overlay Squelch Tone amp Level Preset where applicable Tac Com Only pre s n 1129 NAT R T Band Select RT 9600 7200 Mode Select Flexcomm Band Select Overall form factor matches C 722A C 962A C 1000 QA Manufacturing P
26. pressing HELP while editing a tone location during channel editing Scroll through the table by pressing HELP until the desired entry is located Press RADIO to exit or continue through the table by pressing HELP until the data entry screen is reached 3 5 4 4 DPL Codes NAT NT series transceivers support 83 Digital Private Line Codes DPL in addition to the CTCSS or Private Line subaudible tones This option must be enabled at installation time in the installation and configuration mode of operation It is normally shipped set to OFF by the factory to reduce confusion over tone codes DPL codes are three digit sequences that describe a digital code sent at low frequency in the background of regular transmissions They are filtered out of normal receive audio and provide another method of signalling or squelch control Code numbers are arbitrary and are stored in an internal table When in use the control head finds the correct entries based on how the code is entered The FREQ option for tone presentation is not available if DPL is enabled 023 Code If the 0 position is chosen for edit the control head is programmed to select a 3 digit DPL code and bring up the table for the SELECT switch to choose from 32 Tone Code f the first digit position is skipped the control head is tone code programmed to select a 2 digit CTCSS tone code and bring up the table for selection This arises ONLY if DPL is enabled For most users this se
27. the control head by incorrect settings in this mode so considerable care is required 3 12 1 Entering Configuration Mode WARNING Incorrect Use Of This Mode May Render The Control Head INOPERABLE Use This Function With Extreme Care If you have ANY questions please phone NAT prior to use To enter this mode do the following EXACTLY AS DESCRIBED a With the power turned off move the EDIT switch to the CH position b Turn on the control head The Lock EDIT switch OFF for normal operation message should appear C Press the HELP button The password message should appear d i Using the CHAN switch scroll to ii Press the NEXT Button iii Using the CHAN switch scroll to A iv Press the NEXT Button Using the CHAN switch scroll to vi Press the NEXT Button e Push HELP to advance to the first configuration screen Depending on the style of control head and the options selected the information on this and subsequent screens will vary So don t worry if you don t see all of the features listed in the following table Jan 4 2006 Page 3 31 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 Using the normal editing procedure SELECT NEXT select a valid option for each feature presented The configuration mode may not be left until all options It is up to you to ensure that the selected options are com
28. turn on of the control head This display will produce messages such as those shown below for each radio POWER LO TONES OFF The control head will continue with each radio in sequence and will finally position the cursor arrow by the selected radio when it has finished There may also be messages such as those shown below which are system error alert messages reported by the Tac Com control head NO I F BOARD There is no interface card installed in this specific slot RT1 4 inside the Tac Com control head This message appears if there are empty slots in the control head to warn that the panel controls are inactive NO RADIO When tested by the Tac Com control head no radio was found installed in this specific slot It may have been removed for service used in another aircraft or have the mating connector disconnected RADIO OFF When checked by the Tac Com control head the radio was found to be turned off or defective if turned ON at the front panel This message also appears for Flexcomm radios if they are removed from the aircraft as they do not support the NO RADIO function 3 4 Front Panel Controls There are two main groups of controls and a 2 3 or 4 line by 16 character display on the Tac Com control head The first group of controls is radio specific and affects the operation of only a single radio there can be up to four installed in a single control head The second are g
29. 14 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 5 3 Summary of Channel Labels Tac Com permits two kinds of channel numbers set at installation time for ease of use and as amemory aid Block numbers begin with a letter a d and have 32 channels per block This allows channels to be grouped together for convenience i e all channels for forestry in one block all EMS in another all police in another etc and also clearly shows which channels can be scanned together as a group NAT NT series radios hold 32 channels at one time for scanning and they must be from the same block Block numbers are a reminder of which channels are grouped together Blocks a01 a32 Sequential Numbers 001 032 601 632 033 064 01 32 065 096 401 432 097 128 The control head can also be set to show 128 sequential channels some lesser number if preferred and if it has been set up that way at installation time In this case the channel numbers go 001 to 128 This is often used with Flexcomm radios where there is no scan function There is also one additional mode which is supported only on the NT136 PAS multi mode transceiver In this case channel numbers labelled 01 to A64 and 01 to F64 The channels are and the channels are FM Each 32 channel block may be scanned within each bank 1 32 and 33 64 but all cha
30. 21 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 This is used where the tones are needed only to open the repeater and serve no RX squelch function 3 6 2 3 POWER Some radios such as NAT s NT series and the RT 9600 7200 support a high and low power transmitter function Many radio station licenses have power restrictions at altitude and must be set to low TX power above 5 000 for legal operation This may also be required to prevent repeater interference at altitude or to permit secure operations 3 6 2 4 TONE DISP New generation software now permits the user to define the tone presentation to suit local operations on a radio by radio basis This selection can be set to the tone frequency referred to as FREQ or to one of several codes The sequential numbers for the first 32 EIA tones are referred to as 1 32 The alphanumeric codes for Motorola radios are referred to as MCODES The shifted octal codes used by Wulfsberg are referred to WCODES on the status line To select the desired tone display option from the list chose the desired display mode with the SELECT switch The options are 1 32 WCODE MCODE and FREQ Note that the FREQ option will not appear if the DPL tones have been selected ON in the IAC edit mode Refer to Section 3 5 4 4 for more information 3 6 2 5 SCAN For NAT series transceivers the option of scanning a LIST
31. 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 9 1 Scan Modes If priority scan channels are enabled through the status editing mode the channel label will then be followed by the ident P1 or P2 viewed in the ID display mode indicating priority status If the channel was added to the list scan mode the SC flag will also be displayed when viewing the channel label Priority channels are selected by the status line as is the SCAN MODE list or priority Channels are tagged for list scanning in the ID label edit CH function Current generation Tac Com software supports three scan modes as follows 3 9 1 1 LIST Scanning Channels are selected for LIST scanning by adding a scan flag to the end of the ID line when in the channel editing mode This space can be toggled to be either a dash not flagged or the flag showing that the channel is added to the scan list for that radio or block of 32 channels NT series radios Once scanning is active the control will move through all the flagged channels in order until a carrier is detected then it will remain on that channel until traffic stops plus a 2 3 second latency period to permit a reply to any incoming traffic If there is no further activity the control will continue through the list and then start over When scanning is de selected the control head resumes normal op
32. 6 000 800 MHz NTX403 xxx Low High Band No longer available as new products Jan 4 2006 ENG FORM 800 0108 DOT Page 1 3 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 2 2 3 TE12 DTE12 DP12 DTMF Tone Generator Keyboard Data Entry Unit These devices can output DTMF signalling tones from either keyboard control or stored sequences and can serve as a direct keyboard data entry system for Tac Com control heads to change channels and frequencies Consult NAT Ltd for further information 1 2 2 4 RA10 Remote Attenuator This group of remote signal attenuators can be used to alter receive and transmit performance and range under operator control They allow compliance with restricted transmit power regulations even when the radio itself cannot alter its transmit level They are used extensively in Europe for changing TX power to even lower levels than the 1W output possible via Tac Com transceivers directly and to reduce RX interference from closely spaced repeaters by reducing RX sensitivity 1 2 2 5 Tactical Direction Finding TDF System This 2 axis DF system allows both left right and fore aft sensing with a pictorial display This provides exceptional accuracy during search and rescue and remote tracking operations and also provides a positive indication of station passage impossible with single axis systems to aid in exact target location 1 2 2 6 CC250 450 Co
33. 8 5Z 156 7 Hz 25 31 5A 162 2 Hz 26 32 5B 167 9 Hz 27 33 67 173 8 Hz 28 34 6A 179 9 Hz 29 35 6B 186 2 Hz 30 36 77 192 8 Hz 31 37 7 203 5 Hz 32 38 MA 210 7 Hz NAT 33 NAT ONLY 1 NAT ONLY 2 NAT ONLY 218 1 Hz NAT ONLY 2 ONLY 3 NAT ONLY 225 7 Hz NAT 5 ONLY 3 NAT ONLY 4 NAT ONLY 233 6 Hz NAT 3b NAT ONLY 4 NAT ONLY 5 NAT ONLY 241 8 Hz NAT 37 NAT ONLY 45 NAT ONLY M6 NAT ONLY 250 3 Hz NAT 38 NAT ONLY 46 NAT ONLY M7 NAT ONLY The multiple codes shown are available on current generation Tac Com ll controls only Previous generation Tac Com amp Il controls had only a single code which was the WCODE for compatibility with existing aircraft transceivers Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Page 3 17 Tac Com Control Head Manual SMO6 Rev 4 10 The additional codes and frequency display were added in the new control head software in 1991 for USFS OAS contracts Tone data is often received in the EIA sequential number format or as the raw frequency and requires additional tone support for ease of use Controls with USFS interfaces guard controls are set for the EIA sequential tone code at the factory Older controls pre 1991 Tac Com may upgrade to current generation software for this expanded tone display 3 5 4 3 Using Help to Get the Table The tone code table is accessed by
34. Com control head Only NAT s own radios offer full capability which includes extended tones DPL encryption scanning and variable transmit power Jan 4 2006 Page 3 1 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 3 3 Initial Operation 3 3 1 Power up Help Turn the Tac Com system on by rotating any radio volume control away from the OFF detent position The software revision number will be briefly displayed followed by a screen presenting an option for use of the on line HELP system as shown below e FM TACTICAL COMMUNICATION SYSTEM n Jenat TH250 CHAN RT HELP Instruction SCAN Qeg E OFF NORM es RADIO Operation DISPLAY CHAN RADIO SELECT UM HELP C3 ON Jee RX TX STATUS If help is selected i e the HELP button is pushed the control head will present a tutorial on the operation of each control head feature To advance through the tutorial press HELP after reading each screen To exit this initial help function at any time press the RADIO button and the control head will begin normal radio operation 3 3 2 Initial Operating Display If help is declined by using the RADIO button as directed the control head will display a summary of the installed functions and current settings for each radi
35. E 10F 1 INTERCONNECT 24 JUNE 91 DESIGNED BY DRAWN BY APPROVED BY SCOTT MOORE NAT PROD 119 REVISION 20 AUG 93 TAC COM 1 INTERCONNECT DRAWING FOR CONNECTING A TAC COM MASTER CONTROL HEAD A TAC COM SLAV CONTROL H AND A DTE 12 TONE ENCODER DATA ENTRY PAD POWER SUPPLY CARDS 402 1 REV This drawing is for all TAC COM Control Heads MASTER CONTROL HEAD SYSTEM CONNECTOR P100 DB25S 28VDC PWR 28VDC PWR 28V LIGHTS 14V LIGHTS 5V LIGHTS REMOTE ON OFF TX DATA OUT RESERVED RESERVED RX DATA IN SW POWER ON O gt 11 gt 28 0 28V LIGHTS 1A ste EAD WITH SERIAL 1 0 INTERFACE CARD SLAVE CONTROL HEAD SYSTEM CONNECTOR P100 DB25S 28VDC PWR 28VDC PWR 28V LIGHTS 14V LIGHTS 5V LIGHTS REMOTE ON OFF RESERVED 12 CHASSIS GND 13 PWR GND 14 PWR GND 15 LIGHT GND 16 LIGHT GND 17 LIGHT GND 18 AUX GND 19 SERIAL GND 20 SERIAL GND 21 SERIAL GND 22 RADIO NEXT REMOTE CHAN SELECT a CHAN SELECT bs DATA ENTRY TONE ENCODER PLUG DC37S TX DATA RX DATA SERIAL GND NOTES A av amp 5V LIGHTS MAY BE WIRED WHEN APPLICABLE AA vo NOT CONNECT PIN 13 TO PIN 14 AT THE CONNECTOR IT MUST BE CONNECTED TO THE AIRFRAME GND AA WIRING SHOULD BE
36. E12 data is serial while the external remote switches are ground closures pulled up to 5 V internally Check each antenna feedline with a through line wattmeter and suitable frequency elements at the RT to ensure correct antenna matching Reflected power in excess of 25 represents a serious problem and should be investigated carefully or serious RFI and system interference as well as possible radio damage may result Check that forward power is to specifications for the radio in use Jan 4 2006 Page 2 5 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 2 5 Troubleshooting 2 5 1 Weak Receive Transmit Intermittent Operation Erratic Squelch Ensure all antenna mounts are secure cleanly grounded and well terminated Avoid sharp coax cable bends or crushed coax from tie wraps Never mount any antenna on a composite surface unless a well grounded and adequately sized equal in radius to the height of the antenna ground plane has been provided Keep antennas widely separated especially between VHF radios and VHF and UHF radios Bad antenna matches and close proximity will result in large amounts of spurious radiation which may affect VHF FM to VHF AM operation and may result in harmonic interference between VHF and UHF radios 2 5 2 Strange Noises No Receive Audio Transmit Keying problems Buzzes hums or other background audio noises are symptoma
37. ECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 6 3 1 6 4 Page 1 14 Display Type TH450 2FFNN 00 LCD Display Master Discontinued 10 LCD Display Slave Discontinued 50 LED Display Master 60 LED Display Slave Above example LED Master Display Filter Lighting Suffix Information 260 222 0 Yellow Green LED Filter or Clear LCD Filter Natural 28 lighting LCD Standard 1 Dark Green LED Filter NVG friendly LED 28 lighting 2 Dark Green LED Filter Natural 28 Vdc lighting LED Standard 3 Yellow Green LED Filter w Z cloth Natural 28 Vdc lighting 4 Dark Green LED Filter Natural 5 Vdc lighting 5 Dark Green LED Filter NVG friendly LED 5 lighting 6 Dark Green LED Filter Blue White 28 Vdc lighting 7 Circular Polarized glass daylight Natural 28 Vdc lighting 8 Circular Polarized glass daylight Blue White 5 Vdc lighting 9 Deep Red Filter with Red LED Displays Natural 28 lighting 10 Yellow Green with Amber LED Displays Natural 28 Vdc lighting 11 Circular Polarized glass daylight NVG friendly LED 5 Vdc lighting 12 Circular Polarized glass daylight NVG friendly LED 28 Vdc lighting 13 Circular Polarized glass Natural 5 Vdc lighting 14 Dark Green LED Filter Blue White 5 Vdc lighting 15 Circular Polarized glass daylight Blue White 28 Vdc lighting 16 Circular Polarized glass daylight NVIS B Compliant 28 Vdc lightin
38. Failure to follow any of the installation instructions or installation by a non certified individual or agency will void the warranty and may result in a non airworthy installation 2 3 Installation Procedures 2 3 1 Warnings Do not bundle any lines from this unit with transmitter coax lines Do not bundle any lines from this unit with 400 Hz synchro wiring or AC power lines Failure to observe these limitations may result in incorrect or intermittent operation or severe audio interference on received and transmitted signals In all installations use shielded cable exactly as shown and ground as indicated Significant noise problems and or improper operation may result from not following these guidelines Jan 4 2006 Page 2 1 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 2 3 2 Cautions All audio installations can be severely degraded by incorrect wiring and shielding may result in much higher cross talk hum and ground loop interference This should be considered when installing audio wiring to and from the specific radio Both the audio Hi and Lo wires must be connected from the radios audio outputs are floating transformer windings on NT series radios and should be grounded only at the audio panel via the audio common If multiple transceivers are installed it is very beneficial to use tri axial cable for the antenna feedlines
39. H250 TH350 TH450 SYSTEM CONNECTOR P100 DB25S TAC COM SLAVE C H TH260 TH360 TH460 SYSTEM CONNECTOR P100 08255 1A 1A 28VDC PWR 1 op 28VDC t 5 1 28VDC PWR 28VDC PWR 2 2 28VDC PWR 28V LIGHTS 3 gt 28V LIGHTS lt 3 28V LIGHTS 14V LIGHTS 4 Yo ne 4 14V LIGHTS 5V LIGHTS 5 Luc INN 5 5V LIGHTS REMOTE ON OFF 6 6 REMOTE ON OFF TX DATA OUT 7 7 TX DATA OUT RESERVED 8 C4 8 RESERVED RESERVED 9 i C49 RESERVED RX DATA IN 10 RX DATA IN SW POWER ON SW POWER ON RESERVED RESERVED CHASSIS E CHASSIS GND PWR GND E A E PWR GND PWR GND E PWR GND LIGHT GND E LIGHT GND LIGHT GND S LIGHT GND LIGHT GND LIGHT GND AUX GND AUX GND SERIAL GND SERIAL GND SERIAL GND SERIAL GND SERIAL GND SERIAL GND RADIO NEXT REMOTE REMOTE 23 RADIO NEXT CHAN SELECT 24 CHAN SELECT CHAN SELECT 25 5 14V amp 5V LIGHTS MAY WIRED WHEN APPLICABLE DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR IT MUST BE CONNECTED TO THE AIRFRAME GND ALL WIRING SHOULD BE 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG Confidential and Proprietary to NAT NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA B C PART NUMBER _ DRAWING NUMBER FILE NUMBER TH450 TH460 TH460 403 TH460N403A DESCRIPTION SHEET DAT
40. NLY SEE DRAWING CH402 1 403 FOR NEW CONTROL HEAD INSTALLATIONS NORTHERN AIRBORNE TECHNOLOGY LTD KIRSCHNER RD KELOWNA B C FILE NUMBER PART NUMBER DRAWING NUMBER 400 1 CH400 1M403 1 CH400 1 403 1 1 OF 1 20 AUG 95 DESCRIPTION SHEET DATE APPROVED BY NAT PROD DESIGNED BY DRAWN BY SCOTT MOORE 19 DRAWING FOR THE CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH400 1 REV B amp This drawing is for Tac Com CH SERIES Control Heods with serial numbers 1044 to 1127 TAC COM CONTROL HEAD SYSTEM CONNECTOR P100 DB25S 28VDC PWR 1 28VDC PWR 28V LIGHTS 14V LIGHTS LIGHTS REMOTE ON OFF TX DATA OUT RESERVED RESERVED RX DATA IN SW POWER ON EL LTG 28VDC CHASSIS GND PWR GND PWR GND LIGHT GND LIGHT GND LIGHT GND AUX GND AUX GND AUX GND SERIAL GND AUX GND SPARE SPARE ON TAC COM 1A zb o 28VDC 28V LIGHTS SLAVE C H OPTIONAL SLAVE C H OR COMPUTER OPTIONAL A apap NOTES JEN 14V amp 5V LIGHTS MAY BE WIRED WHEN APPLICABLE DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR IT MUST BE LCD CONTROL HEAD CH200 CH400 JUMPER Con
41. ORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 3 9 1 3 LIST PRIORITY Scanning In this mode both LIST amp PRIORITY features are combined so that a list can be checked while still periodically testing for activity on two priority channels This is a new feature and only exists on software revisions 2 13 and later for Tac Com Il and 1 45 and later for Tac Com controls In this case priority allocations remain per the normal priority mode but list channels have a lower priority than the home channel and are scanned only when there is not any activity on the other three Note for NTX Transceivers When CTCSS tones are enabled the access time for the decoder is added to the LIST PRIORITY scanning time dramatically reducing receive audio intelligibility NAT therefore recommends that the combination of CTCSS tones and LIST PRIORITY scan should be avoided for these units 3 9 1 4 AM Scanning While this was not an original feature of Tac Com and the NT136 PAS multi mode transceiver it is now fully implemented Some hardware updates are required to the transceiver below s n 1018 to achieve the required sensitivity for fast lock reception but coupled with current software it can provide scanning with AM levels down to 2 0 uV Because of the electrically noisy environment aircraft present squelch thresholds must be much higher for AM receivers than for FM 2 3 0 uV versus 0 5 uV When scanning the effectiv
42. ROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 1 3 3 Radio Capability Increase With Tac Com Wherever possible NAT has increased the capability of other transceivers via the Tac Com control head and those features are summarized below compared to the original controls Feature Tac Com Tac Com C1000 962 722 Stored Channels 32 56 per Radio 128 per Radio 30 Total 15 Total PL Tones 38 83 38 83 DPL 32 8 32 for W E D 32 for W E D No of Transceivers 1 4 1 4 1 1 simultaneous Alpha Labels Yes Yes No No Remote Selection No Yes No No channels amp radio Master Slave Yes Yes No No both active NT series Radios have the capability shown Tac Com controls can provide 32 PL tones for Flexcomm Tac Com Il can also provide an internal tone upgrade for the RT 9600 7200 to provide all 32 standard EIA CTCSS tones U interface PL Private Line also known as CTCSS DPL Digital Private Line W E D Wulfsberg Electronics Division Note Only NAT s own NT series transceivers support all the features provided by Tac Com controls Tac Com controls cannot give a radio functions of which it is inherently incapable For example older crystal controlled Flitefone 40 s do not become agile radios when connected to a Tac Com head and Flexcomm radios do not acquire high speed scanning or DPL capability Jan 4 2006 Page 1 7 ENG
43. S REMOTE ON OFF 6 REMOTE ON OFF TX DATA OUT 7 TX DATA OUT RESERVED 8 RESERVED RESERVED 9 RESERVED RX DATA IN 10 RX DATA IN SW POWER ON SW POWER ON EL LTG 28 0 EL LTG 28VDC CHASSIS GND CHASSIS GND PWR GND A PWR GND PWR GND PWR GND LIGHT GND LIGHT GND LIGHT GND LIGHT GND LIGHT GND LIGHT GND AUX GND AUX GND AUX GND AUX GND AUX GND AUX GND SERIAL GND SERIAL GND AUX GND N C AUX GND SPARE NOTES SPARE SPARE 14V amp 5V LIGHTS MAY BE WIRED WHEN APPLICABLE SPARE DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR IT MUST BE CONNECTED TO THE AIRFRAME GND CH200 CH300 CH400 LCD CONTROL HEADS ONLY JUMPER EL LIGHTS ON WHEN UNIT ON NO JUMPER EL LIGHTS TRACK DIMMER PIN 12 CAN ALSO BE RUN TO 0 28VDC FOR DIRECT EL DIMMING ALL WIRING SHOULD BE 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG NORTHERN AIRBORNE TECHNOLOGY LTD eme 1825 KIRSCHNER RD KELOWNA B C 25 JUNE 91 FILE NUMBER ___ 27 AUG 93 Kane CH410 CH410 403 CH410 4038 p A DESCRIPTION SHEET DATE INTERCONNECT CH410 OCT 24 88 DESIGNED BY DRAWN BY MITCH STINSON APPROVED BY 119 TAC COM Il INTERCONNECT DRAWING FOR CONNECTING A TAC COM MASTER CONTROL HEAD TO A TAC COM SLAVE CONTROL HEAD POWER SUPPLY CARDS 402 1 REV This drawing is for all TAC COM 1 Control Heads TAC COM MASTER C H T
44. TAC COM SERIES Control Head TAC COM SYSTEM 250 DISPLAY CHAN RADIO 50 SELECT NEXT EDIT HELP Ep OFF Der O C Nu RX OFF INSTALLATION AND OPERATION MANUAL REV 4 10 January 4 2006 Northern Airborne Technology Ltd 1925 Kirschner Road Kelowna BC Canada V1Y 4N7 Telephone 250 763 2232 Facsimile 250 762 3374 Copyright 2005 by Northern Airborne Technology CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 4 10 Tac Com Control Head Manual Periodically NAT will release manual amendments In order to maintain the most accurate and up to date manual these amendments should be carried out immediately upon receipt and recorded on the following amendment record AMENDMENT RECORD Amendment Amendment Section s Date Number Date Changed Entered Entered By Insert any Amendment Instruction sheets after this page Jan 4 2006 Page ii ENG FORM 820 0110 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 4 10 Tac Com Control Head Manual Table of Contents Section Title Page Description Introduction General Tac Com Control Head Family Accessories Purpose of Equipment Interface Considerations Mixed Transceiver System Radio Capability Increase With Tac Com Master Slave Configuration Frequency Data Considerations Hardware Design Features amp Considerations General Disp
45. TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 Anything visible on the screen may now be edited SO CAREFUL If channel numbers are being changed be sure that they are CORRECT A mistake here can be very difficult to correct later IMPORTANT This mode stays active until the unit is powered down and is active for ALL RADIOS not just the one initially selected Anything that needs to be changed may be fixed but be sure to power the unit OFF before normal operation If you are unsure of this function PLEASE CALL NAT for more information 3 11 2 How Data is Stored in the Control Head In current generation Tac Com and controls all detailed radio configuration data is stored in special software set up routines to make field changes much simpler The over all operating software for the control head is stored in an EPROM Erasable Programmable Read Only Memory which is an integrated circuit storage device and can be removed and updated through a service centre exchange These program updates come only from NAT itself Some control head data such as set up information channel labels and frequencies are stored in EEPROM Electrically Erasable Programmable Read Only Memory circuits and can be accessed and updated by the user operator as required 3 11 3 Editing Considerations It is important to remember that data stored in the EEPROM can be damaged by catastrophic component failure severe static disch
46. This is a seldom used function and is provided for compatibility reasons only 3 5 1 3 EDIT Switch TACTICAL COMMUNICATION SYSTEM 9 omw ANAE RADIO OFF RT1 HOSPITAL EDIT DISPLAY CHAN RADIO SQ Switch SELECT NEXT EDIT HELP gt 2 s F RX TX RX OFF STATUS This locking centre off switch shifts the operation of the control head from editing back to the normal operating mode For normal radio operation it must be returned to the centre or OFF position No special activity is needed to store the data that has been entered while editing It is stored as soon as it is entered When editing is finished set the EDIT switch back to OFF 3 5 1 4 HELP Switch DISPLAY CHAN RADIO BN RADIO OFF HOSPITAL HELP Switch SELECT NEXT EE HELP TX ST RX TX RX STATUS OFF The help screen may be accessed at any time and for any function while in the edit mode Press the HELP button if the operation of any function is unclear during editing Information will be provided for the desired edit function and if pressed while channel editing in the tone character position will bring up the complete tone look up table for reference Jan 4 2006 ENG FORM 806 0106 DOT Page 3 13
47. VDC 12 CHASSIS 15 gt PWR 14 4 PWR GND 15 LIGHT GND 16 LIGHT GND 17 LIGHT GND 18 AUX GND 19 NOTER Confidential and Proprietary to NAT SERIAL GND 20 AA 14V AND 5V LIGHTS MAY BE WIRED WHEN APPLICABLE SERIAL GND 21 SERIAL GND 22 DO NOT CONNECT PIN 13 TO PIN 14 AT CONNECTOR IT MUST BE CONNECTED TO THE AIRFRAME GND RESERVED 23 LCD CONTROL HEADS CH200 CH400 RESERVED 24 JUMPER EL LIGHTS ON WHEN UNIT ON RESERVED N REVISION NO JUMPER EL LIGHTS TRACK DIMMER 12 ALSO BE RUN TO 0 28VDC FOR DIRECT EL DIMMING LED CONTROL HEADS CH250 CH450 DO NOT INSTALL EL LIGHTING VOLTAGE ALL WIRING SHOULD BE 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST BE 20 AWG NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA B C PART NUMBER DRAWING NUMBER x CH402 1 CH402 1 403 DESCRIPTION INTERCONNECT 1 OF 1 DESIGNED BY DRAWN BY MOS SCOTT MOORE 119 28VDC PWR 28VDC 28VDC PWR 28V LIGHTS 28V LIGHTS 14V LIGHTS 5V LIGHTS SLAVE C H REMOTE ON OFF OPTIONAL TX DATA OUT TA RESERVED Ke OR COMPUTER BOTH OPTIONAL RESERVED RX DATA IN SW POWER ON RESERVED CHASSIS GND PWR GND PWR GND LICHT GND LIGHT GND LICHT GND Confidential and Proprietary to NAT
48. XT HELP C Oe Qs OFF le Switch NORMAL Operation RX TX STATUS Channel witch 5 06 Rev 4 10 To change channels press the CHAN switch in the desired direction either for ascending or for descending numbers Channel selection can also be accomplished remotely if the remote channelling switch is installed The radio that has the cursor in front of it is the one that will be channelled Channel numbers will increase from a02 upwards a03 a04 etc with each press of the switch to position If the switch is held to either position it will scroll rapidly increasing in speed the longer it is held down 3 4 2 3 RADIO Push Button NORMAL Operation 0 FM TAC COM SYSTEM JO eu et NExT pen ue OFF Da Q Q e Os C RX OFF RX TX STATUS Radio Pushbutton This push button switch picks the active radio selected for any operation The radio selected is indicated by a triangular cursor to the left of the channel number RT1 in this example Cursor movement is from top to bottom to the brightness screen and then returns back to the top again The radio that has the cursor in front of it is the one that will be channelled RT1 To select RT2 press RADIO If pressed a second time the display brightness screen will be displayed When selected a radio may be channelled edited or the manual squelch test operated It has no bearin
49. alled Set to ST ED if using the Status Edit mode to RT9600 GRD NONE ST ED F P control the RT9600 7200 guards ST ED option is invalid if RT9600 TONES is set to 32 Set to F P if using the extra TAC COM Front Panel controls to control the RT9600 7200 guards Allows selection of modulation type applicable to NTX1 38 300 onl or Bandwidth control This line will appear once for each NT series NT GRD INST YES NO radio that is installed Set to YES for each radio that has a guard receiver installed This line will appear once for each NT136 type NT136 FM ONLY AM FM radio that is installed Set to FM ONLY for a standard NT136 radio Set to AM FM for an NT136 PAS radio LBL C H SPECTRA This line will appear once for each SPECTRA type radio that is installed These selections indicate the source of the Labels LBL displayed either from the Control Head or the Spectra radio ASTRO TYPE WA W5 W7 W9 This line will appear once for each ASTRO type radio that is installed These select the type of Astro control head for which the T99 Astro radio has been configured Note For the XTL series W9 MUST be selected for proper operation Software version in which the feature was introduced Except where otherwise noted all later versions also include the feature These will appear only if the radio has been selected in the RADIO box of the Feature column End of section 3 Jan 4 2006 Page 3
50. anel controls b From the remote select switches Tac Com only From DTE12 Keyboard Data Unit Tac Com ll only Jan 4 2006 Page 1 9 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 4 Hardware Design Features amp Considerations 1 4 1 General The Dzus mounted Tac Com control heads use extremely high quality components including sealed gold contact switches gold contact connectors and fully masked conformal coated 4 flame retardant circuit boards Each unit is fully temperature life tested and then supported with a solid one year warranty and extensive field support to ensure the best possible customer satisfaction A wide range energy conversion power supply is used in the control head allowing operation from 16 33 for nominal 28 systems Panel lighting must be adjusted to suit the specific application and is normally supplied as natural colouration 28 Vdc incandescent lighting Options include blue white or NVG lighting available 5 14 or 28 operating voltages For ease of service integrated circuits are socketed where possible allowing fast return to service of failed control heads and quicker bench troubleshooting Control head software is easily updated for improved features or expanded capability by an internal EPROM exchange Internal interface cards are plug in modules to facilitate qu
51. are sometimes used to screen unwanted transmissions on shared frequencies They are often referred to as PL Tones or Private Line Tones The correct name defined by the Telecommunications Industry Association TIA is Continuous Tone Controlled Squelch System CTCSS Tac Com has stored a useful tone look up table inside the help function To view it edit a channel and move the editing cursor flashing character to the far right hand position where the tone should be Pressing HELP there will allow the CTCSS tone table to be reviewed 3 5 4 1 Methods of Tone Display Over the years many different codes have come into existence to describe these tone sub audible tone frequencies They are listed below Tone Frequency This is the standard This is a frequency below 300 Hz that uniquely identifies the tone key that is used to control the radio squelch allows audio to be heard or control a repeater function There are only three digits available on the control head for this data so any decimal fraction is omitted from the display i e 103 5 Hz becomes 103 Although not displayed the correct frequency is still used EIA Codes 1 32 This is a sequential number from 1 32 or 38 that identifies the tone in order from lowest 67 0 Hz to highest 203 5 Hz or 250 3 Hz as defined by the Electronics Industry Alliance EIA Wulfsberg Codes WCODES These sequential shifted OCTAL codes based on the thumbwhee
52. arge particularly by friction induced static during shipping if incorrectly packed or accidental servicing or installation errors If odd or un removable characters should appear in the display particularly in unfortunate locations such as channel numbers they can be removed via the MASTER EDIT mode Channels should be set up in terms of easy scrolling access with the most often used being close together in numerical sequence This will save endless cycling back and forth looking for channels Page 3 30 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 12 Installation amp Configuration Mode This mode of operation is also not required for normal operation and is intended to aid in servicing and control head set up Some firmware functions of the control head can be set via this mode including the following installation parameters Transceiver selection for each interface slot Transceiver selection for Wulfsberg C 1000 system emulation operation RT 406F SYS or RT 450 SYS Number of radios installed in the control head Number of channels per radio Master Slave operation DPL enable this function is normally set OFF to avoid tone confusion To enter this mode requires a special code and switch sequence and should be USED ONLY AT THE FACTORY OR BY QUALIFIED SERVICE PERSONNEL It is possible to completely DISABLE
53. e capability of the Tac Com U interface which provides all 32 standard CTCSS tones This interface remains plug compatible and also eliminates the awkward external tone encoder required on USFS contracts A USFS compatible V interface is provided for use with NT150 050 guard equipped radios and the H interface is designed for use with the NTX138 050 For use with existing Flexcomm installations NAT provides an adapter cable p n FC41 000 Flexcable that permits direct connection from C 1000 airframe connectors to the F interface 1 3 2 Mixed Transceiver System The example shows a four radio Tac Com control head running a mixed transceiver group to illustrate what is possible with the interface flexibility of Tac Com internal architecture Transceivers may be a combination of fixed and agile radios with and without scanning and can be from any of the supported interfaces that NAT provides See section 1 6 5 or consult Product Support at NAT for further information TACTICAL COMMUNICATION SYSTEM TH450 N m 2 ANSCEIVER v ag b NTX403 O000 TRANSCEIVER Ki SES AN E A N AN 30 2JJDD UHF TRANSCEIVER CONTROL HEAD 4 1 001 UHF TRANSCEIVER 4 1 6 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND P
54. e character that will be selected flashes This flashing character is referred to as the editing cursor since it shows what is about to change The intelligent editor within the control head only permits a valid choice for every position for data entry This is to aid operators in reducing entry mistakes particularly when busy with other flight procedures The selection choices are strung together in a circle and choices move through this circle with the SELECT switch as shown below in the diagram Jan 4 2006 Page 3 11 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 Depending on which way the SELECT switch is set or the choices will move around the circle in either direction The editor removes numbers from this circle that don t apply to the particular cursor position For example VHF High Band radios can only have a 3 4 5 6 or 7 in the 10 s of MHz position so no other numbers are permitted during editing from the front panel in this location Some radios do not channel below 150 MHz so then the editor removes the 3 and 4 and so on through each position that can be edited When editing the channel ID label or name the editor opens the circle to include all the alphanumeric characters and some frequently used symbols like the blank visible as a flashing underline to show the cursor location slash and number sign The choice
55. e range of coverage will be smaller for AM than for FM signals of the same strength 3 9 1 5 Scanning on other systems On Midland Syn Tech radios channels added to the scan list will have the letters or b added to the end of the ID label display The status line is used to select whether list b or both list and b are used the SCAN mode Only list channels are used in the priority mode Scanning is not provided for Wulfsberg radios due to their very long synthesizer lock up times which preclude scanning 3 10 NAT NTX138 Wide band Narrow band Operation The NAT NTX138 radios are capable of operating in either a wideband mode 5 0 kHz modulation or narrowband 2 5 kHz modulation mode These modes are largely determined by the operating system used by the radio and the associated channel spacing See section 3 7 1 for wide narrow band display indication Page 3 28 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 11 Master Edit Mode USE THIS MODE WITH GREAT CARE SERIOUS PROBLEMS CAN DEVELOP IF THIS MODE IS USED INCORRECTLY RESULTING IN SEVERE CHANNELING DIFFICULTY This mode is intended for service related activities but is presented here briefly for reference and to aid with any field related data problems Normally there is no reason to ever enter this mode unless it is necessary to change a f
56. e small indicates that the data displayed is a RECEIVE frequency If the radio is put into the simplex mode this will be replaced with 5 In SIMPLEX or DIRECT operation the radio s TX frequency is shifted to the RX frequency to permit talk around operation on repeaters The old data remains in the control head memory but is not displayed 3 7 3 Display Switch Set to TX TX or Transmit Frequency and Tone This is the transmit frequency of a given channel plus its Transmit Tone if any in the format selected previously A typical TX frequency might look like this a01 154 775t 100 Channel Freq Tone The indicates that tones are enabled from the STATUS EDIT function The small t indicates that the data displayed is a transmit frequency If the radio is put into the simplex mode this will be replaced with an s and the TX frequency cannot be edited In SIMPLEX or DIRECT operation the radio s TX frequency is shifted to the RX frequency to permit talk around operation on repeaters The old data remains in the control head memory but is not displayed Page 3 24 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 8 Changing Display Brightness There is one additional display function which is the INTENSITY CONTRAST setting On LED controls this is selected by advancing the cursor past the bottom radio The di
57. eneral controls that affect the over all operation of the control head The function and relative location of these important groups is as follows Jan 4 2006 Page 3 3 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 3 4 1 Radio Specific Controls 0 FM TAC COM SYSTEM Radio specific Controls LI NEXT OFF RX TX DS 7 STATUS RX OFF Radio specific controls allow the general operation and function of each radio to be modified independently The radios are identified as RT1 RT2 etc to the left of the display and the line of text continues through the display to connect to the specific controls for that radio on the right hand side of the control head The exact functions that are provided on the front panel via the radio function switch will vary with each radio type Some radios support very few features while others require both the front panel switch and a number of status line functions to set all of the radio functions Guard controls are not available on all units 3 4 1 1 Guard Controls Guard RX Volume RX Status Guard TAC COM SYSTEM 250 Channel Select amp nat CHAN 5 e CHAN RADIO SQ SELECT NEXT EDIT HELP OFF Q rer C che RX STATUS
58. eration and the radio will return to the home or monitor channel it was set to before scanning began 3 9 1 2 PRIORITY Scanning Because they can exist only once for each radio or block of 32 channels NT series radios and to avoid accidental duplication priority channels are set via the status edit function The same priority channels could be set for every block NT series radios but they must then be entered into channels within each block The highest priority channel is designated P1 and the next priority P2 the lowest priority is the home or monitor channel The 71 2 flags will appear after the channel names in the ID mode once they are set It is not necessary to have both P1 and P2 assigned if they are not required If a transmission is received on the home channel both P1 and P2 continue to be checked If a transmission occurs on the P2 channel the radio will continue to check for activity on P1 If a transmission occurs on the designated P1 channel the radio will rechannel to that frequency regardless of activity on other channels The check during priority is very fast about every 1 3 second and will sound like a faint tick when occurring during other reception Whenever an incoming transmission is detected the display will show the correct channel data corresponding to the display mode selected ID RX or TX Jan 4 2006 Page 3 27 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRB
59. fidential and Proprietary to NAT CONNECTED TO THE AIRFRAME GND EL LIGHTS ON WHEN UNIT ON NO JUMPER EL LIGHTS TRACK DIMMER 12 CAN ALSO BE RUN TO 0 28VDC FOR DIRECT EL DIMMING LED CONTROL HEAD CH250 CH450 DO NOT INSTALL EL LIGHTING N ALL WIRING SHOULD BE 22 AWG 24 AWG MIN EXCEPT POWER AND GROUND MUST 20 FOR REFERENCE ONLY SEE DRAWING CH402 1 403 FOR NEW INSTALLATIONS REVISION DATE NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA B C PART NUMBER DRAWING NUMBER FILE NUMBER CH400 1 CH400 1 403 2 CH400 1 403 2 DESCRIPTION SHEET INTERCONNECT 1 1 20 AUG 1995 DESIGNED BY DRAWN BY ARROYOS MQS SCOTT MOORE 119 INTERCONNECT DRAWING FOR THE TAC COM CONTROL HEAD SYSTEM CONNECTOR POWER SUPPLY CARD CH402 1 REV TAC COM I This drawing is for CH SERIES Control Heads with serial numbers starting at 1128 TAC COM I CONTROL HEAD SYSTEM CONNECTOR P100 DB25S T 57 PE 28VDC PWR 1 5 28VDC 28VDC PWR 2 28V LIGHTS 3 gt 28V LIGHTS 14V LICHTS 4 5V LIGHTS 5 AVE C H REMOTE ON OFF 6 D I TX DATA OUT 7 RESERVED 8 PNC OR COMPUTER BOTH OPTIONAL RESERVED 9 RX DATA IN 10 gt SW POWER ON 11 eo EL LTG 28
60. for DUPLEX operation Pressing NEXT will advance to the next function while pressing SELECT will select what choice is wanted for this function Jan 4 2006 Page 3 19 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 3 6 1 NEXT and SELECT Switch Use SIMPLEX This choice will cycle with SELECT switch TX MODE This function will cycle with the NEXT switch Cycling SELECT will change the choice displayed for any given function To advance to the next function press NEXT and it will appear Use the SELECT switch to again insert the desired option and continue in this manner until the radio status is correctly defined If NEXT is pressed again the functions will cycle around again in a loop to allow for any error corrections The pattern of this selection is shown below to illustrate the flow of information The specific functions that appear in this general loop vary with each transceiver type to some extent the version of the software New generation Tac Com controls have three scan modes while older ones have only two This can be upgraded by replacing the EPROM in an older control head Page 3 20 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual To illustrate the choices possible in the STATUS EDIT MODE the following diagram s
61. g 17 Circular Polarized glass daylight NVIS B Compliant 5 Vdc lighting Jan 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 1 6 5 Interface Specific Suffix Information The position of the digit in the code reflects the position of the card in the control The code position from left to right equals the relevant card position from top to bottom TH450 2 A ARINC 2 of 5 Comm M Midland Syn Tech I B Blank No Controls N NT Series C Flitefone 40 O Not Assigned D Motorola Astro XTL Series P 9600 7200 Single Connector D1 Motorola Astro XTL with zone function RT9600 with Tones No Guard E NT Slot Controls only No Card R RT9600 7200 Plug Compatible F Flexcomm S Motorola URC 200 G Flex Slot Controls only No Card T NAT NT Series with Transcrypt H NTX Series with USFS Guard U 9600 with USFS Guard amp Internal Not Assigned 32 Tones J NAT Tac Com NTX Series V NT Series with USFS Guard J1 Chelton 805 1 905 2 915 1 W Not Assigned K Midland Syn Tech XTR X Not Assigned L Motorola Spectra Y Serial I O Expansion Port L1 Motorola Spectra with zone function Z General Slave Interface Above example 3 NAT amp 1 Empty Empty in bottom slot Earlier Tac Com controls had a different nu
62. g of this data in the master edit mode for reference only will not change frequency after editing Receive frequency editing is also allowed for guard channels also crystal controlled used in some radios but again this is for reference only and no change will take place in the operation of the radio When editing RX or TX frequency data only those frequencies the control head recognizes as valid can be entered and only in the fractional multiples allowed If mismatched multiples occur when editing a warning message FREQ ERROR will appear because the RX and TX frequencies must both be divisible by the same synthesizer interval The last positions far right hand on the RX and TX lines are for tone data these locations have scan flags on the ID line Depending on the type of radio installed differing codes are possible here to represent the CTCSS or sub audible tones used for repeater or squelch control A different tone can be set for receive and transmit the capability to have tones can also be enabled or disabled through the status lines providing the radio will support this function If the tones are enabled via the status line equal sign will be displayed between the channel number and following information on all three presentations If the special function DPL or Digital Private Line has been enabled at installation time then 83 different 3 digit DPL codes are available for use with NT series radios Page 3
63. g on transmit or receive capability and only serves as an indication of which radio the control head is prepared to perform some operation on This selection works in increasing order only 1 2 3 4 display brightness and then re starts at the beginning Page 3 8 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Jan 4 2006 5 06 Rev 4 10 Tac Com Control Head Manual 3 4 2 4 EDIT Switch Function NORMAL Operation SYSTEM Low RT2 Doc Edit Switch DISPLAY CHAN RADIO eS en HELPS Da 0 RX When the EDIT switch is in the centre off locked position all editing functions are off and the control is in normal operation It the switch is set to any other position then editing is active and either radio or channel data can be altered by the operator 3 4 2 5 Squelch Function NORMAL Operation FM TACTICAL COMMUNICATION SYSTEM TH250 zen NN GUARD HELP Instruction NORM OFF SIMPLEX SCAN NORM 2 RADIO Operation OFF e eu SELECT NEXT EDI HELP a Squelch 0 TX O eos RX TX RX OFF STATUS Pressing this button during the power up screen presentation when the control head is first turned on will take the operator through detailed help screens for each fu
64. he LED display automatically dims on current production units to 5096 intensity when voltage is detected on the control head light bus The LED display is adjustable in 7 steps via the SELECT switch when the Bright Dim screen is displayed Page 1 10 Jan 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 4 10 Tac Com Control Head Manual 1 5 Specifications 1 5 1 Electrical Specifications Input Power 16 33 Current 0 25 A LED Control 250 Series Panel Indicators Channel Storage Data Interface Scanning Jan 4 2006 ENG FORM 800 0108 DOT 0 35 A LED Control 350 Series 0 45 A LED Control 450 Series 0 15 A LCD Control 400 Series 0 075 A Interface Card Installed for all types 0 250 A 28 Vdc for panel lighting Values above are maximum display set to full intensity Two colour LED indicates TX Green RX SQ Orange One LED per radio except when the interface supports separate guard controls U etc which case a second LED is provided for the guard receiver CH series Tac Com 32 56 Channels per radio TH series Tac Com 11 128 Channels per radio Programming via standard RS 232 from a PC NAT software or front panel for all functions NT series transceivers 90 channels second radio NTX series transceivers 10 20 channels second radio Modes are LIST PRIORITY LIST PRIORITY Priority
65. hows all the current options and choices for NT series transceiver While this appears complicated as a chart it is very simple to use and just represents a sequence of clear choices that cycle around for user selection When editing is finished return the EDIT switch to OFF and the information will be stored It is not necessary to go through the entire status listing and exit is available at any time This feature may also be used to check how the radio is set up without making any changes 3 6 2 Status Edit Features The status edit features currently implemented in Tac Com are as shown and explained below 3 6 2 1 TX MODE There are two modes possible either DUPLEX REPEATER operation or SIMPLEX DIRECT operation This determines whether a common frequency is used for RX and TX or whether different frequencies will be used This function over rides what is stored in the individual channel data locations and allows those stored channels to also be operated in SIMPLEX mode without taking up another storage location Not all radios have this capability 3 6 2 2 TONES Most radios have this capability TONES can be set ON or OFF for the radio by this function thus enabling or disabling any tones which may be set on a per channel basis through channel editing NAT NT series radios and the RT 96 7200 also support a tones mode of TX ONLY which enables only the transmit tone but not the receive tone Jan 4 2006 Page 3
66. ick service exchange or upgrade Wherever possible fully plug compatible interconnects are provided for existing systems replaced by Tac Com controls making retrofits and test flights both easy to accomplish and inexpensive Where it is not possible to directly accomplish this within the control head itself an adapter cable or plug replacement on an existing cable is used 1 4 2 Display Filtering Lighting Options Current LED displays used in Tac Com control heads are green first generation Tac Com controls used a yellow display with fully formed 5x7 pixel alphanumeric characters They have a large character height of 5 mm 0 2 and a very wide viewing angle 2150 degrees that provides good readability from virtually all cabin mounting locations including centre consoles such as in the Bell 412 212 Several display filter panel lighting options are provided with LED controls to give the best visual presentation in different ambient lighting conditions Filter refers to the DISPLAY colour and appearance and Panel Lighting refers to the panel legend back lighting colour amp voltage See Section 1 6 Unit Nomenclature for complete option list details The backlighting for the control head which includes the LCD display can be run from a dimmer separate from other cockpit controls if more adjustment over the LCD back lighting is desired This will permit both backlighting and contrast to be adjusted for the best presentation T
67. is manual Section 3 12 or contact the Product Support department at NAT for instructions on how to alter this data before proceeding Check for correct radio operation and channelling both receive and transmit and ensure that all status indications are correct TX and RX Do not proceed until the radios are operating correctly It may be necessary to set the display screen after the last radio on the control head to obtain a clear or bright display Correct squelch operation may require setting the AUDIO and FAST SQUELCH pots on the top of the control head NT series radios only The FAST pot is set for the correct trigger point of the panel indicator scan trigger point and the AUDIO pot is used to set the audible squelch threshold These are factory set and any field adjustment may cause problems If squelch settings are to be made in the aircraft use a calibrated signal generator connected directly to the radio The visual squelch indicator must be set so that it appears at the same point as the audible squelch Note that the visual trip point fast squelch has no hysteresis while the audible trip point will remain tripped as the input level is decreased This is normal and required for correct operation If remote channel switches Tac Com only or a DTE12 Tac Com only are installed confirm that all remote channelling and editing functions are working All of these connections are via the system connector J100 P100 DT
68. l 1 3 Purpose of Equipment The Tac Com series of control heads provides a centralized location for tactical radio control and channelling of up to four independent transceiver systems Only the Tac Com series will be considered for further information contact NAT Ltd Alphanumeric labeling of each radio channel is provided as well as a display of receive and transmit frequencies to ease pilot identification of the selected channel on each radio At the Tac Com master control head individual radio receive volume and radio power on off status can be controlled Individual radio functions can also be set such as scanning tones simplex duplex TX power and others Annunciation is provided for TX and RX activity on a per transceiver basis and the main display can be set to show the channel name alphabetic label the receive frequency and tone data or the transmit frequency and tone data for all radios via the general control group Radio Controls General _ 8 0 10 Ze Controls X e TH250 Control 2 Radios 256 Total Channels Within the control head individual radio interface cards translate the control head commands into suitable channelling data for each specific type of radio connected Software controlling these functions as well as the built in help screens for control head operation is located on the main control head CPU board and can be easily replaced to upgrade or im
69. l design of the C 1000 control Because they are missing numbers ending in O amp 9 they are often confused with the straight sequential number for the EIA tones Motorola Codes MCODES These are alphanumeric codes that seem largely random in assignment but often appear in the land mobile business if Motorola equipment is used Page 3 16 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 5 4 2 CTCSS or Subaudible Tone Table The following table shows the relationship of the supported tone codes All ofthese are available in the control head and when editing the SELECT slew switch will bring up only valid choices for each type of code Pressing HELP while editing these positions of the channel data will bring up the tone table for reference The Frequency shown will have the decimal fraction truncated when displayed on the control head Tone Frequency 1 32 1 38 WCODE MCODE 67 0 2 1 01 XZ 71 9 Hz 2 02 74 4 Hz 3 03 WA 77 0 2 4 04 XB 79 7 Hz 5 05 SP 82 5 Hz 6 06 YZ 85 4 Hz 7 07 YA 88 5 Hz 8 08 YB 91 5 Hz 9 11 2 94 8 2 10 12 2 97 4 2 11 13 2 100 0 Hz 12 14 12 103 5 2 13 15 1A 107 2 Hz 14 16 1B 110 9 Hz 15 17 27 114 8 2 16 18 2 118 8 2 17 21 2 123 0 2 18 22 32 127 3 Hz 19 23 3A 131 8 Hz 20 24 3B 136 5 Hz 21 25 47 141 3 Hz 22 26 146 2 23 27 4B 151 4 Hz 24 2
70. lay Filtering Lighting Options Specifications Electrical Specifications Physical Specifications Environmental Specifications Unit Nomenclature 1 1 LX l3 CX ci X 1 I l3 A gt gt ll 2 1 ch ech zech ch gt gt gt gt ech NO 1 1 1 1 1 esch ee LL Ll Ll lI lI lI lI Ll lI Lll lI lI lI lI lI lI 5 A A w 1 Series Designation 2 Number Of Radios 3 Display Type 4 Display Filter Lighting Suffix Information 5 Interface Specific Suffix Information 2 Installation 2 1 Introduction 2 1 2 2 Unpacking and Inspection 2 1 2 2 1 Warranty 2 1 2 3 Installation Procedures 2 1 2 3 1 Warnings 2 1 2 3 2 Cautions 2 2 2 3 3 Cabling and Wiring 2 2 2 3 4 Mechanical Mounting 2 3 2 3 5 Notes 2 3 2 4 Post Installation Checks 2 4 2 4 1 Voltage Resistance Checks 2 4 2 4 2 Power On Checks 2 4 Jan 4 2006 Page iii ENG FORM 820 0110 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual Section Title Page 2 5 Troubleshooting 2 6 2 5 1 Weak Receive Transmit Intermittent Operation Erratic Squelch 2 6 2 5 2 Strange Noises No Receive Audio Transmit Keying problems 2 6 2 5 3 Some Frequencies Can t be Edited 2 6 2 5 4 Display Brightness is Too Low
71. lection will not be used because only subaudible tones are used Page 3 18 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 3 6 Status Line Editing The status lines for each radio contain all the extra functions supported by the radio Because this is largely defined in software it also provides a very cost effective method of upgrading the system performance or features through simple software EPROM changes rather than radical panel re design Some radios may have little or no function support such as the FliteFone 40 others may have many features such as NT series RT s including power level shift scan tones and priority Like editing other data only allowable options are presented guided by the control head s reading of the interface card s capability and the stored software installation set up routines This mode can also be used to display the status of the radio quickly without editing any data To edit status line data press the RADIO button until the triangular cursor appears to the left of the radio whose status is to be edited or displayed Once the radio is selected ST status EDIT mode may be entered to change the information In this mode each of the available functions for the radio can be set or reviewed Only valid functions and choices will be presented Note that for this radio the TX mode function is set
72. ly no Technical Standing Order TSO for FM Communication systems regardless of manufacturer 2 7 Continued Airworthiness Maintenance of the Tac Com Series control heads is on condition only Periodic maintenance of this product is not required Jan 4 2006 Page 2 7 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 2 8 Installation Drawings This section has the complete interconnect drawing set for all installations both current and previous revisions Be sure to use the correct drawings for your installation Any unique notes for a given installation type appear in the relevant Interface Card Supplement and in Section 2 3 5 Consult this section for any information that may apply to your specific installation All information for interface cards will be provided by Manual Supplements available by contacting NAT Ltd 2 8 1 Outline drawings DRAWING REV DESCRIPTION TYPE TH250 NF903 Control head plan view 3 0 Mechanical TH450 NNFF903 Control head plan view 4 875 Mechanical TH250 NN 905 0 1 01 Faceplate of Typical Tac Com TH250 Faceplate TH260 905 0 1 01 Faceplate of Typical Tac Com Slave TH260 Faceplate TH350 NNN 905 0 1 00 Faceplate of Typical Tac Com TH350 Faceplate TH360 905 0 1 10 Faceplate of Typical Tac Com Slave TH360 Faceplate THA450 NNNN 905 1 00 Faceplate of Typical Tac Com 11 TH450 Faceplate TH460
73. mbering scheme using only a three character suffix If you need to convert an older number to a new one contact NAT for details or consult revision 1 xx of this manual End of section 1 Jan 4 2006 Page 1 15 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual Section 2 Installation 2 1 Introduction Information in this section consists of unpacking and inspection procedures installation procedures post installation checks and installation drawings 2 2 Unpacking and Inspection Unpack the equipment carefully and locate the warranty card Inspect the unit visually for damage due to shipping and report all such claims immediately to the carrier involved Note that each unit should have the following Tac Com Control Head Warranty Card Operator s Manual Release certification Verify that all items are present before proceeding and report any shortage immediately to your supplier 2 2 1 Warranty Complete the warranty card information and send it to NAT when the installation is complete If you fail to complete the warranty card the warranty will be activated on date of shipment from NAT Note An appropriately rated facility e g Certified Aircraft Repair Station must install this equipment in accordance with applicable regulations NAT Ltd s warranty is not valid unless the equipment is installed by an authorized NAT Dealer
74. mmunications Controllers The CC250 450 is a compact easy to install communications controller It is designed to provide relay and or simulcast operation for up to 4 transceivers With these functions the aircraft can become an airborne repeater or a multi frequency transmitting platform When used to its potential the CC250 450 provides increased efficiency and reduced workload for communication operations Only the CC450 0V2 is currently in production 1 2 2 7 CTE12 Calquest Headset Adapter The CTE12 100 Calquest Headset Adapter is designed to interface standard avionics headsets to the Calquest Cabin Network Unit CNU The headset adapter provides a DTMF keypad status indicators ring chime control ring in use annunciator control and VOX squelch capability The headset adapter can interface directly to a headset or a standard avionics audio panel 1 2 2 8 UT12 Universal Tone Encoder Decoder The UT12 000 is capable of encoding and decoding 5 tone CCIR tone sequences and DTMF tones It is compatible with the NAT Tac Com system and when used in conjunction with a TH series Tac Com control head provides broader and easier control over tones The control head or transceiver can select enable disable and display tones by communicating with the UT12 000 through a serial port Page 1 4 Jan 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manua
75. nction of the control head In the normal operation of the control head this is the only access to help on power up as this button is then the manual squelch SQ test button for the selected radio The squelch test function is useful for monitoring activity on a radio when tones prevent the squelch from opening normally or to verify volume settings or radio function Pressing SQ over rides all squelch logic and lets the radio s raw receive signal pass to the ship s audio system When the locking EDIT switch is in any position other than OFF centre the HELP switch again becomes active and provides context sensitive help for whatever function is being attempted such as frequency entry tones or labelling These two modes of help power on and edit provide assistance to the pilot operator without interfering with the selected operation of the control head If basic help is required after the Tac Com control head is already on cycle the control head off again turn all volume controls to OFF or cycle the external breaker and when powered up again the option for comprehensive help will re appear Jan 4 2006 Page 3 9 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 3 5 Editing Editing is the general term for changing any information stored in the Tac Com control head There are two basic types of editing that can be selected from the fron
76. nnels must be AM or FM within the scan group Blocks 01 2 Sequential Numbers 001 032 A33 A64 equivalent 033 064 FO1 F32 065 096 F33 F64 097 128 In addition to using the front panel channel and radio switches the remote channel and radio switches may also be used if installed They work exactly the same way as the front panel switches A DTE12 or DP12 can also be used to access a channel directly by number this case just key in the number sequential number and press the ENTER key on the DTE12 It is important to understand how channel numbers work because some things may occur on the display that might be confusing An example is shown below demonstrating what happens when the control head is channelled below a01 gt REPROGRAMMING Note that the control displays the message REPROGRAMMING while it re loads the next block of 32 channels into the NAT radio for 127 FORESTRY scanning This happens very quickly but creates a short pause when scrolling through each block of 32 channels Jan 4 2006 Page 3 15 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 As soon as the data is loaded into the radio the next channel in the next block appears d32 Channels wrap around from highest to lowest so that it is never necessary to reverse direction to advance to any channel 3 5 4 Summary of Subaudible Tones Subaudible tones
77. o this feature can be disabled in the installation set up for faster start up Once all of the functions have been displayed the radio will be ready for normal operation Once normal control head operation is selected the display will install the radio and its settings as specified by the interface card and software set up instructions This will produce the following system message on the control head e FM TACTICAL COMMUNICATION SYSTEM n nat CHAN NAT NT 150 DISPLAY RADIO SELECT NEXT HELP Q3 OFF RX TX STATUS Page 3 2 ENG FORM 806 0106 DOT Jan 4 2006 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 150 or WULFS 7200 etc This is the radio type designated for that transceiver slot in the control head 1 4 and will change if either the interface card the stored software set up or hardware jumper selections are changed in the control head This message is to advise what the control head thinks should be in that interface slot Next the status of the radio is presented which represents the state of its radio wide functions such as transmit power duplex operation or tones A summary of all the selection options will be displayed unless defeated in the installation software set up to speed up
78. ontrol head type can have user specified interfaces installed as required Control heads with LCD displays are no longer available available as Tac Com only Current models are available with LED displays Tac Com ll Two Radio Control Heads MASTER SLAVE amp FM TACTICAL COMMUNICATION TH250 TACTICAL COMMUNICATION SYSTEM GS TH260 como SP oe SP m2 DISPLAY RADIO SQ DISPLAY CHAN RADIO INFO EDIT4 HELP RX TX amp RX TX STATUS STATUS ID Tx Q Ov os C n m Oe Ost C RX OFF RX Three Radio Control Heads MASTER SLAVE QM TACTICAL COMMUNICATION SYSTEM GS A m net FM TACTICAL COMMUNICATION SYSTEM TH360 CHAN 38 nat DISPLAY CHAN RADIO INFO HELP Q FL 11 DISPLAY CHAN RADIO SQ SELECT NEXT EDIT HERO r S 0 O 0 0101 0 1 2 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual Four Radio Control Heads
79. ould be matched for the best performance LED displays offer very wide viewing angles and are suitable for centre console mounting and locations not in the pilot s direct field of vision Jan 4 2006 Page 2 3 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 2 4 Post Installation Checks Before the unit is permanently mounted perform the following functional tests and make any needed adjustments and switch or jumper settings Ensure that the unit is securely mounted before any flight is attempted 2 4 1 Voltage Resistance Checks DO NOT ATTACH THE TAC COM CONTROL HEAD UNTIL THE FOLLOWING CONDITIONS ARE MET With the Tac Com control head disconnected from all of its mating connectors make the following measurements on the system connector P100 mating plug 25 pin whether it comes from an FC41 adapter cable or from the basic airframe wiring a Check pins 1 and 2 for 28 relative to ground b Check pins 13 14 and 15 for continuity to ground below 0 5 ohms C Check pin 3 28 Vdc pin 4 14 Vdc or pin 5 5 Vdc for proper lamp dimmer voltage d Check pin 16 417 or 18 for continuity to ground as above lamp return If the control head uses only the RT9600 7200 plug compatible interface card it is permissible to not use the system connector and instead use the existing wiring from the C 962
80. patible with each other If they are not the control head may not following table carefully to ensure that you f are completed 9 and with the hardware being used operate correctly Read the understand the configuration options completely 3 12 2 Configuration Option Table FEATURE VALID OPTIONS GRD ON OFF DPL CODES COMMENTS This is the maximum number of radios the control head can handle not the number installed Controls the Digital Channel Guard option for all NT series radios installed Digital Channel Guard is also known as Digital Private Line or DPL S W VER 2 00 MASTER C H ON OFF Determines whether this control head will act as a master in a master slave setup Normally OFF STATUS DISPLAY ON OFF ON POWER UP HELP DISPLAY ON POWER UP ON OFF DATA PAD PORT RADIO RT 9600 RT 7200 RT 30 RT 138 RT 450 450 SYS RT 406 406 SYS NT30A NT136 NT150 NT403 NT450 NT450A NT450B NT450C 806 FF 40 SYN SYN XTR 2x5 2x5 EXT PAR BCD 805 1 SPEC L SPEC L1 SPEC L2 ASTRO NTX138 NTX066 NTX403 Page 3 32 ENG FORM 806 0106 DOT Set to the of slaves that are connected to this master control head This feature supersedes the MASTER C H feature Determines whether or not the radio status lines are displayed on power up Determines whether or not the help information option is displayed on power up Set to the serial port that the master
81. pear here the PRIORITY SCAN FLAG for the P1 and P2 channels but this data is set from the STATUS EDIT function as it can exist only once for each radio or once for each bank NT series radios Both list amp priority scan are supported in NAT NT series radios and can be programmed by the operator For Flexcomm radios aCHANNEL DISCRETE flag can also be to be used for special external switching It appears in the same place as the SCAN FLAG on the display Jan 4 2006 Page 3 23 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 NAT NTX138 radios provide wide band and narrow band operation The bandwidth flag indicates the selected mode It indicates the current modulation acceptance and transmit deviation mode When a W character is displayed the channel is operating in wide band mode When a D character is displayed the channel is operating in narrow band mode A typical NTX138 ID line might look like this 01 FORESTRY Sc Di Channel Label Bandwidth Scan Flag Flags 3 7 2 Display Switch Set to RX RX or Receive Frequency and Tone This is the receive frequency of a given channel plus its Receive Tone if any displayed in the format selected previously A typical RX frequency might look like this a01 156 875r 91 Channel RXFreq Tone The indicates that tones are enabled from the STATUS EDIT function Th
82. prove control head functions The software of the control head s computer can emulate many types of parallel tuned radio controls and this allows the Tac Com system to directly replace many existing controls such as the C 960 C 961 C 962A C 722A and C 1000 In addition since the Tac Com control allows control of up to four simultaneous radio systems the single Tac Com control can replace up to four individual controls with a substantial reduction in cost and panel space The following diagram illustrates a system that shows this multiple radio capability using NAT NT series agile transceivers Any combination of radios could be used by installation of the appropriate interface cards within the control head In the example below an accessory DTE12 is used for DTMF tone generation and direct keyboard data input to the TH450 Jan 4 2006 Page 1 5 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 1 3 1 Interface Considerations Tac Com offers direct plug compatibility for replacement of C 962 A and C 722 A control heads for use with the RT 9600 and RT 7200 including the second audio connector For USFS applications Tac Com provides some additional capability when used with the RT 9600 Full guard receiver control can be brought out on the front panel and the limited tone capability of the RT 9600 8 variable tones can be replaced with the internal ton
83. r than during normal operation because the time interval for detection is so short No tones or DPL codes are taken into account when scanning The radio will stop on any scan designated channel that has an RF signal present but received audio may not be heard if the tones are incorrectly set in the control head To avoid any confusion tones can be set to OFF via the status edit function during scanning so that all channels will be heard Any channel can be designated as both a PRIORITY channel and a LIST channel within the 4 banks of 32 channels supported by NAT NT series transceivers The appropriate scan flags will then appear after the channel name in the ID mode P1 or P2 and or SC Any or all of the 32 channels in a bank can be in the list for LIST SCANNING but only one channel each may be assigned the P1 and P2 Priority designation NOTE NAT NTX138 radios provide 128 continuous channels Therefore there can be only one pair of priority channels selected When scanning is selected by the front panel mode switch a message will be displayed to indicate what the radio is doing On earlier Tac Com controls this message was SCANNING but in new software revisions the scan mode and bank are now displayed for better operator understanding These messages are now as follows Display Scan Mode L SCANNING a LIST SCANNING bank a P SCANNING b PRIORITY SCANNING bank b LP SCANNING c LIST PRIORITY SCANNING bank c Page 3 26 Jan
84. requency display for some non agile channel such as a guard Note Master Edit Mode is seldom used in normal operation If the data in the control head has developed an error that cannot be edited out this mode will correct these problems Such problems may be Garbled or incorrect channel number or out of sequence numbers Mystery characters in a space that can t be reached for edit Incorrect guard or crystal channel data 3 11 1 Entering Master Edit Mode To enter this mode carry out the following steps EXACTLY AS DESCRIBED a Turn on the control head b Press the RADIO button to activate a radio Move the EDIT switch to editing cursor will flash after the channel label and tones on off indicator d Push the HELP button to bring up the HELP function e Advance through screens by pressing HELP until the Enter applicable password appears f i Using the CHAN switch scroll to N ii Press the NEXT Button iii Using the CHAN switch scroll to A iv Press the NEXT Button Using the switch scroll to vi Press the NEXT Button 0 If the password is entered correctly the control will say Correct If not the control head will drop back into normal operation Press NEXT again and the regular data screen will appear but the editing cursor will be in the left hand position after the arrow Jan 4 2006 Page 3 29 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE
85. ring is completed Generally all wiring should be at least 22 AWG except power and ground connections which should be 20 AWG check the appropriate Interconnect drawing for the unit under consideration Ensure that the ground connection is clean and well secured To prevent inadvertent system failure power to this system must be supplied from a separate breaker or fuse and not bundled to any other source A 1A breaker is suggested 28 Vdc source Notes 1 The case is grounded electrically and should be attached to a grounded surface for correct RFI shielding A pin is provided for grounding the case and this must be connected via its own wire to a suitable ground not jumpered to the power ground wire connection Page 2 2 Jan 4 2006 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 2 The interface cards for the RT9600 and RT7200 have different locks from those on the original harness The tight packaging on the Tac Com control head does not allow spring locks to be used The harness locks must be changed to jackscrews to match the Tac Com connectors before flight New locking hardware is furnished with the control head when these cards are installed 2 3 4 Mechanical Mounting Installation should be in accordance with AC 43 13 1B chapter 7 sections 3 to 7 and AC 43 13 2A chapter 2 Mounting is accomplished in a standard Dzus rack or rail a
86. rocesses AWM PART 561 MIL STD 2000 MU Assembly 509001 1994 1 12 4 2006 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual 1 5 3 Environmental Specifications Altitude Pressurized alt equivalent to 15 000 Unpressurized alt equivalent to 35 000 Temperature 20 C to 60 C Operating 55 C to 85 C Survival Humidity 9096 60 C Vibration DO 160 category K P S console or panel mounting in both helicopters or fixed wing All Dzus fasteners MUST be secured 1 6 Unit Nomenclature Tac Com control heads are identified by two groups of numbers The first defines the general capability of the control head in terms of the total number of radios controlled and type of display and the second specifically defines the display filter and backlight type as well as the radio types supported Each section of the part number defines part of the control head capability General Capability Specific Interfaces I TH450 2N NFE Display Filter Information 1 6 1 Series Designation TH450 2NNFE Tac Com Series Controls TH Tac Com Series Controls Above example Tac Com 1 6 2 Number Of Radios TH250 2 2 Two Radio Control 3 Three Radio Control 4 Four Radio Control Above example 2 Radio Jan 4 2006 Page 1 13 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE T
87. rovide an option of returning to the last channel set prior to power down This channel is referred to as the PDC or Power Down Channel and can be set as an option instead of any specific channel number 3 6 2 9 ENCRYPTION 138 radios are available with an encryption option If installed in the radio the control head will include a status line to allow the selection of encryption on or oft 3 7 Channel Display Summary The NAT Tac Com control heads provide three displays for each channel of stored radio information as set by the DISPLAY switch at the lower left side of the control head 3 7 1 Display Switch Set to ID ID or Channel Label Information This is a name such as FORESTRY HOSPITAL or BASE 5 The display format shows the CHANNEL number ID LABEL and any SCAN FLAGS A typical ID Label might look like this a01 FORESTRY Sc Channel Label Scan Flag The indicates that 5 ARE ENABLED This appears only once the tones turned ON from the STATUS EDIT function Tones can be stored but not active and can be activated for TX ONLY or both TX and RX as required TX ONLY is the normal mode for forestry operations on USFS OAS BLM contracts If all tones both RX and TX are activated no audio may be heard in some simplex operations as no tones may be present and thus the radio squelch will not open SCAN FLAGS indicate which channels are flagged for monitoring during LIST SCAN Another flag can ap
88. s are ignored and with the NT150 the radio does not test for these conditions when determining that a channel has been found Tones remain active for squelch control This is because the delay to test for tones is so long compared to the radio lock up time that scanning would be seriously compromised NT series transceivers scan at rates of Jan 4 2006 Page 3 25 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Tac Com Control Head Manual SMO6 Rev 4 10 approximately 90 channels second It takes almost half a second to provide tone or DPL decoding which would result in virtually useless scanning of 2 channels second It is therefore recommended that when using either the NT150 or the NTX138 the tones should be turned off to prevent slow scanning When Scanning is active the front panel CHAN switch is inactive for that radio because channel control is taken over by the scanning logic in the control head This may cause some operator confusion if the control head has acquired a channel while scanning and manual channel change is attempted No change will occur and the radio must be selected out of SCAN into NORM operation for manual channel changes to work from the panel control If the microphone for a transceiver is keyed while the control head is scanning the radio will be rechannelled to the home or monitor channel for transmission When scanning a signal needs to be slightly stronge
89. s for selection are shown below 3 5 1 2 NEXT Switch amp FM TACTICAL COMMUNICATION SYSTEM coann ANE RADIO OFF OFF NEXT HOSPITAL OFF DISPLAY CHAN RADIO 5 Switch SELECT EET HELP TX CH ST C RX TX RX STATUS OFF This push button switch cycles the editing cursor from left to right to the next character to edit The editor will change what choices are valid as the cursor moves from one character to the next Sometimes more than one character will flash This is because the only valid choices involve two characters such as the fractional kHz entry for a channel frequency This is also true for tone code entries The SELECT switch will then scroll through the available entries from an internal table Page 3 12 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual Note that a STAR appears at the right side of the RT 2 ID label in the diagram below This means that the channel discrete line is enabled for that channel This is a line to control external switching of a special function It is programmed just like a scan flag by advancing to that position with the NEXT button and then toggling the entry with the SELECT switch There is only one channel discrete line to set and it appears only for the Flexcomm radios
90. s to the monitor channel channel the radio was resting on when scanning was selected after a 2 second latency All CTCSS tones or DPL codes are inactive during scanning due to lock delay With some radios this mode switch is reserved for GUARD or MAIN transmit selection as scanning is not supported It may also select SIMPLEX or direct repeater talk around operation as opposed to NORM Duplex or repeater operation Data for all channels is stored as individual TX and RX frequencies which permits them to be entered and used in any way The forced SIMPLEX function pushes the stored RX frequency into the TX slot temporarily to permit talk around of an existing stored repeater frequency and avoids having to store a separate channel with this information 3 4 2 General Controls NORMAL Operation The general control head functions include the switches that effect the over all operation of the control head Some of these switches have dual functions depending on control head mode of operation The two modes of operation are NORMAL and EDITING Page 3 6 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual The TOP ROW is for NORMAL OPERATION CHAN RADIO 5 DISPLAY CHAN RADIO 50 SELECT NEXT EDIT HELP Dr Oh Os RX OFF SELECT NEXT EDIT HELP The BOTTOM ROW is for EDITING To show that they are related
91. splay brightness screen below will be shown On a two radio control simply press the RADIO button two times if the cursor is set to the top radio or once if set to the bottom radio and the screen below will appear The display brightness is adjusted with the SELECT switch Press RADIO again to return to normal operation CHAN Dimmer CHAN Brighter On LCD controls there are two ways of making this adjustment either by the screen described above or by a DISPLAY CONTRAST pot if there is adequate room on the front panel The Contrast control changes the contrast ratio and viewing angle of the LCD to suit varying light and position situations If the display is subjected to dramatic temperature extremes hot or cold it will alter the chemical properties of the display and may require an adjustment of this control to return the appearance to the desired presentation 3 9 Scanning Scanning is an automatic internal function that rapidly samples radio channels under operator control The operator may select one of several predefined modes that control how the radio will carry out this function via the STATUS EDIT function and has a front panel switch to send the radio into this mode of operation Scanning is very useful for checking radio traffic on one or more channels while working a home or monitor channel the one the radio was on before scanning was selected When scanning is active all CTCSS Subaudible Tone or DPL Function
92. ssembly with a clearance opening of 5 and full width dimension of 5 75 The rail height required for mounting the various control heads is shown below Tac Com Series Rail Height Required 250 260 and 350 360 3 00 450A 3 75 450B and 460B 3 375 450 460 4 875 Be sure that adequate rear cable clearance is allowed when planning console installations Refer to the aircraft structural repair manual and maintenance manual for instructions and information pertinent to this installation 2 3 5 Notes 2 3 5 1 Control Head System Connector The J100 System Connector Power Lights Ground connections must be provided for operation of the overall system in addition to the basic interface card to radio connections For specific RT9600 7200 radios see the relevant Interface Card supplement SMO6 PQRU 810 0 for an alternative method for providing these connections to the control head Pins 7 10 and 22 are serial data control lines that may be brought out to a connector for serial loading of the control by a PC This allows easy large scale data changes without removing the control head from the aircraft NAT provides a special software package for this function This port may also be used for Master Slave operation or the DTE12 DTMF Keyboard Data Unit 2 3 5 2 Additional Mounting Considerations LED display units come in several different display filter styles see Section 1 6 and the panel location and filter type sh
93. t entries for radios because of its thumbwheel entry system This intelligent editor is especially useful when the Tac Com control head has been set to emulate a C 1000 i e channel any Flexcomm radio as it detects the range of the radio as the data is being entered and then restricts subsequent information to correspond to the exact radio type Radios in each band split have specific channel interval assignments by law and are typically on 25 kHz 15 kHz 12 5 kHz 6 25 kHz 5 kHz or 2 5 kHz intervals Which multiples are possible depends on the design of the radio s synthesizer circuitry history and restrictions of the country of operation Tac Com automatically picks the correct multiples for each radio type based on the stored installation data and ensures that only valid choices are possible for the operator If the operator enters invalid data via either external data entry or other procedure the control will advise of this error User intervention is then required to correct the data before proper radio operation can be achieved 1 3 5 1 Frequency Programming There are three ways to program channel data into a Tac Com control head a From the front panel controls edit mode b From a DTE12 Keyboard Data Unit edit mode Tac Com only C From a PC via NAT s data loading software amp the system serial port 1 3 5 2 Channel Selection There are three ways to select a channel on a Tac Com control head a From the front p
94. t panel of the control head These are CH channel editing and ST status editing As the name implies channel editing permits channel data to be controlled by the operator This includes channel names the transmit and receive frequencies and matching tones scan flags for list scan and for some radios channel discrete lines To edit different channel information such as frequency data or channel names it is necessary to first select which information ID RX or TX will be edited via the DISPLAY switch There is simply not enough room to fit every possible function switch that might be needed for a given radio on the front of a Tac Com control Some radios also have many more functions than others complicating this control arrangement The solution for this clutter is the use of the status line to show features that are important but not constantly in use on the front panel Status functions can be as extensive as required for a given radio The internal editor permits only valid choices at all times so that the operator is not required to know a great deal about the specific radio in question but only what needs to be accomplished Editing Controls CHAN RADIO 50 SELECT Two sets legends exist for each of these switches The bottom row connected by lines represents the function of the switches during the edit mode of operation It takes some time to become familiar with the dual nature of these switches bu
95. t they greatly reduce clutter on the front panel and make it possible to package all of the required functions into a size mechanically compatible with other systems Page 3 10 Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 4 10 Tac Com Control Head Manual 3 5 1 Channel Editing TACTICAL COMMUNICATION SYSTEM TH250 com nat SN GUARD RADIO OFF QOQ SIMPLEX OFF 6 SCAN A den za Y m NORM viz HOSPITAL x HOME EDIT Switch DISPLAY CHAN RADIO SQ SELECT NEXT EDIT HELP 0 TX O RX TX RX OFF STATUS When the EDIT switch is in the CH position the ID RX and TX information may be edited The position or character to be edited will flash or blink on and off When channel editing of data is in progress operation of the radios is suspended and the dual function edit switches work in the following way 3 5 1 1 SELECT Switch TACTICAL COMMUNICATION SYSTEM 6 TH250 e m e MEX e SN GUARD RADIO OFF QOQ gt SIMPLEX SCAN r d NORM HOSPITAL 9 SELECT DISPLAY CHAN RADIO Ze Switch SELECT EDIT HELP Q x e Qs C RX TX RX OFF STATUS This switch is used to step the data entry up or down on the currently marked radio Th
96. te 2 5 4 Display Brightness is Too Low Can t Increase to Full Brightness The intensity of the display is set by two functions the level set from the display screen advance the cursor past the last radio then set the brightness up or down with the SELECT switch AND the status of the panel dimmer line If the dimmer is active then the display automatically dims to HALF BRIGHTNESS of the previous setting In some Page 2 6 Jan 4 2006 ENG FORM 805 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 5 06 Rev 4 10 Tac Com Control Head Manual aircraft such as Aerospatiale airframes there are two dimmers one of which MUST be ON for normal daylight flight to drive engine instruments If this line is accidentally used then the display will always be at half intensity A dimmer must be used that is OFF during normal daylight flying and ON during night flying for correct control head operation Early control heads prior to Tac Com 11 did not have this automatic feature which has been added to improve night visibility by reducing display glare in the cockpit 2 5 5 Amber RX Squelch light comes on but no RX audio is heard Press the HELP SQ button If audio is heard this means there is a problem either with the subaudible tones or with the AUDIO squelch setting Refer to the CTCSS or Subaudible Tone Table in Section 3 5 4 2 of this manual to check the CTCSS tone format and frequency and or refer to the Po
97. tic of multiple grounds or noisy external systems such as inverters blowers or pumps sharing wiring with the audio system connections Failure to key or correctly modulate a transmitter or no receive audio is often caused by not connecting all required grounds or wires to the radio or external audio system Check to make sure that MIC AUDIO and PTT lines are not reversed keys but no TX audio Be sure both audio output wires connected from the transceivers no or very faint RX audio A special caution is that no audio ground should be taken from the front instrument panel or similar location that shares a ground return with a turn and bank or horizon or other motor driven instrument If this caution is not observed the sound of the t amp b motor may be heard mixed in with receiver audio 2 5 3 Some Frequencies Can t be Edited Some frequencies are not really agile entries such as crystal guard frequencies and as such should not be edited during normal operation All such entries must be set via the MASTER EDIT mode see Section 3 11 When the SIMPLEX mode RX and TX frequency lines display an 157 you cannot edit the TRANSMIT portion of the radio channel assignments because there is actually a valid TRANSMIT frequency stored It is temporarily hidden because of the SIMPLEX function To edit these frequencies simply return the control head to DUPLEX operation via the STATUS EDIT function or front panel switch as appropria
98. ures Labelling of Channels Labelling of Channels High speed Scrolling Remote Radio Channel Selection Auto Night Dimming USFS Guard amp Tone Capability NT136 PAS Compatible Jan 4 2006 Page 1 1 ENG FORM 800 0108 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD es No No No Tac Com Control Head Manual SMO6 Rev 4 10 The Tac Com control head carries its own operator s manual in internal software and can provide on line help to the operator for all functions An initial help mode at power up can provide a complete tutorial of the control head and its operating and storage functions and pressing the HELP button during either EDIT operation brings up context sensitive help for the specific storage or data entry function being carried out This provides a simple way for new staff to train as well as providing a private method to refresh their knowledge of the system whenever they chose The help information manual can never be lost or misplaced because it forms part of the basic control head itself Radio control functions and transceiver interfaces are determined by a combination of Tac Com control head software and internal radio specific interface cards To specify a complete control head you must select the basic size format and the internal interfaces The range of control heads is shown graphically in the Tac Com control head family drawing below 1 2 1 Tac Com Control Head Family Each c
99. using for some emergency services staff used to land mobile equipment When used with a Wulfsberg radio equipped with a guard channel both the main and guard RX signal will illuminate the RX LED unless equipped with separate guard controls Jan 4 2006 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Page 3 5 Tac Com Control Head Manual SMO6 Rev 4 10 3 4 1 4 Radio Mode Switch amp FM TACTICAL COMMUNICATION SYSTEM TH250 ao 8 AN NN GUARD RADIO OFF SIMPLEX OFF SCAN d Pr RM D 27 HOSPITAL x Bue Radio GI CHAN RADIO Ze Mode SELECT r EDIT HELP H Switch O or C RX TX RX OFF STATUS The last radio specific control is the MODE or FUNCTION switch which varies with the type of radio used For NT series transceivers it selects either NORM or SCAN modes of operation as specifically defined in the status line For NT series transceivers scanning occurs at 90 channels second radio and the following scan modes defined in the status edit mode are LIST up to a block of 32 channelsllist PRIORITY up to 2 priority channels active monitor channel LIST PRIORITY 2 priority 30 channels in a given block Priority monitoring is 3 times second for a 10 15ms sample The radio will re channel to the priority channel if traffic is detected and return
100. wer On Checks section 2 4 2 to check the audio squelch 2 6 Final Inspection During the test flight check levels and operation of all functions Display brightness or contrast may have to be tailored for adequate viewing by the flight crew Ensure there is no interaction between any transmit functions and received NAVAIDS or any other communication receiver functions Antenna placement or cable routing may have to be changed if these problems are encountered Closely spaced antennas or coax cable runs may cause problems especially between VHF systems AM amp FM and between VHF transmissions and UHF receiving due to third harmonic relationship particularly if the RT406F with its less selective front end is used in a complex system Ensure that there is no interaction between Tac Com control head operation and ADF performance If interference exists relocation or re routing of the interconnect cabling may be required Before leaving the aircraft ensure that all the mating connectors are securely fastened to the Tac Com control head Also ensure that the unit is securely fastened to the aircraft from the front panel and that all Dzus fasteners are locked If all functions are satisfactory the aircraft may be released for service once all required log entries electrical load and weight and balance amendments are made the flight manual supplement is updated and the required local regulatory paperwork is completed There is current
101. with the outer shield grounded at the radio end only This added electro static shielding greatly reduces cable coupling and eliminates many types of interference in the final installation Observe proper antenna spacing and good routing practice for all RF lines to avoid cross talk squelch interference and phantom sidetone problems 2 3 3 Cabling and Wiring All unshielded wire shall be selected in accordance with AC43 13 1B Change 1 Paragraphs 11 76 through 11 78 Wire types should be to MIL W 22759 as specified in AC43 13 1B Change 1 Paragraphs 11 85 11 86 and listed in Table 11 11 For shielded wire applications use Tefzel MIL C 27500 shielded wire with solder sleeves for shield terminations to make the most compact and easily terminated interconnect Follow the wiring diagrams in Section 2 9 as required Installation cabling must allow the unit to be easily withdrawn for disconnection switch and pot settings internal and removal Ensure an adequate service loop is allowed in the routing of the cable This can become a serious problem if the unit is installed with the cables so short that the unit cannot be removed without disassembly of the mounting console Atleast 1 foot 30 cm of free cable is recommended Allow 3 inches 8 cm from the end of the wire to the shield termination to allow the hood to be easily installed Note that the hoods supplied by NAT in installation kits are clamshell hoods and are installed after the wi

Spectra Logic TAC/COM SERIES User's Manual

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