TFM-520 Installation and Operating Instructions
Contents
1. 016 e RIS J4 F C19 mue 7 ANT Y C110 24 ta S3 iD R21 Q5 o C31 144 R10 o4 QUAS c tai E C22 632 Bw Z C35 2 Jy U1 C44 3 L43 L18 45 C54 c55 N gl C5 YOUT 22 Rast 37 124 949506R de 2 2 R26 R35 46 49 123 C39 17 f PN SLL J A 2 E C73 19 NI 12 24 212 29 UHF l7 Q2 NiIIe 62 7 9 Lu MAIN RX TX 8 Le BOARD 1 VCO e 1 J P9 i 5 MXI C118 TP2 TECHNISONIC VS INDUSTRIES R36 R33 eb i L32 LIMITED RT ASSY 943167 um g i RX VCO L33 REV R102 8 7 R69 E 130870 S N 2 D a P8 16 34 137 5 1 898 R100 2 1 OF ZEE C6 Notes R11 is for 25 kHz wideband Deviation Adjustment R102 is for 12 5 kHz narrowband Deviation Adjustment TFM 520 Installation amp Operating Instructions 3 12 FIGURE 3 6 UHF Deviation Adjustment Potentiometer Location TiL OORE279 Rev Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca APPENDIX POST INSTALLATION EMI TEST INSTRUCTIONS PURPOSE The purpose of this test is to identify any interference that the TFM 520 may caus2. NOTES TFM 520 Installation amp Operating Instructions A 10 TiL OORE279 Rev N C Issue 3 Technisonic Industries Limited 240 Traders Blvd Mississauga ON Canada L4Z 1W7 Tel 905 890 2113 Fax 905 890 5338 IMPORTANT WARRANTY communication equipment manufactured by Technisonic Industries Limited is warranted to be free of defects in Material or Workmanship under normal use for a period of one year from Date of Purchase by the end user Warranty will only apply to equipment installed by a factory approved and or authorized facility in accordance with Technisonic published installation instructions Equipment falling under the following is not covered by warranty equipment that has been repaired or altered in any way as to affect performance e equipment that has been subject to improper installation e equipment that has been used for purposes other than intended e equipment that has been involved in any accident fire flood immersion or subject to any other abuse Expressly excluded from this warranty are changes or charges relating to the removal and re installation of equipment from the aircraft Technisonic will repair or replace at Technisonic s discretion any defective transceiver or part thereof found to be faulty during the Warranty Period Faulty equipment must be returned to Technisonic or its authorized Warranty Depot
3. 131 250 157 5000 E FREQUENCIES RESULTS 13 5 975 13 8 0000 121 150 157 5000 131 250 157 5000 NOTES TFM 520 Installation amp Operating Instructions A 3 TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca Determine if the image frequency for the VOR ILS Nay falls within the range of the TFM 500 If so select two sets of frequencies that will cause the TFM 520 to be set as close as possible to the image frequency Chose one set in the localizer frequency range and one in the VOR frequency range Record those values in the spaces provided in the following chart Modulate the TFM 520 transmitter on the following frequencies for at least 20 seconds Listen for any noise or detected audio signals on the receiver audio look for any moment of flags or needles on the navigation display FREQUENCIES RESULTS pass 108 000 162 0000 P 108 100 162 1500 FREQUENCIES RESULTS pass FAL 108 000 162 0000 PF 108 100 162 1500 P NOTES TFM 520 Installation amp Operating Instructions A 4 TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca D Modulate the TFM 520 transmitter on the following frequencies for at least 20 seconds Observe the Glideslope displays Look for any movement of flags or needles on the navigation display FREQUENCIES RESULTS 334
4. 14 C18 VESTZC 12 3 B _ L13 C38 ASSY 923034 REV TX VCO L7 R14 L2 2 OO On 19 C20 ON OC R13 C36 5058 C37 L20 05 L10 C44 L8 C42 0 V C43 m C46 I ETZ d C48 C47 oS 0 C34 N L24 114 C87 Q6 L28 Sus 1234 SERIAL L27 L25 gt L18 2 R IG 2 PI R S VHF FM MAIN RX TX BOARD e 7 R50 C84 Pg 2 42 R49 C32 2 MX1 29 TECHNISONIC 135 3i INDUSTRIES Y1 RX VCO LIMITED cri 5 us P2 129 PB 2 1 5 1 Notes R30 is for 25 kHz wideband Deviation Adjustment R76 is for 12 5 kHz narrowband Deviation Adjustment FIGURE 3 5 VHF Deviation Adjustment Potentiometer Location TFM 520 Installation amp Operating Instructions 3 11 TiL OORE279 Rev N C Issue 3 DE BAND EVIATION DJUSTMENT gt Eo NARROW BAND DEVIATION ADJUSTMENT TECHNISONIC INDUSTRIES LIMITED www til ca UHF Receiver Transmitter PCB Module
5. 138 000 MHz 162 000 MHz and 174 000 MHz TFM 520 Installation amp Operating Instructions TiL OORE279 Rev Issue 3 3 7 TECHNISONIC INDUSTRIES LIMITED www til ca UHF SQUELCH Q VHF FM SQUELCH REPEAT O O VHF MIC O to VHF TX E Lo Lo UHF MIC FIGURE 3 4 External Adjustment Access Holes TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 8 TECHNISONIC INDUSTRIES LIMITED www til ca 3 11 SQUELCH ADJUSTMENT The squelch on both the VHF FM and UHF receivers is factory set to open at approximately 1 0 microvolt and 2 0 microvolts on AM These settings can be adjusted or altered to suit local conditions as follows 1 Set the receiver to 157 000 MHz for VHF FM mode or 457 000 MHz for UHF Connect a signal generator to the antenna input of the desired band Set the signal generator to produce a 3 kHz deviation with a 1 kHz tone on 157 000 MHz or 457 000 MHz Increase the signal generator RF level from 0 1 uV until the squelch indicator LED is on Verify the squelch opens at the desired level If not re adjust VHF or UHF receiver squelch potentiometer through the access hole located on the bottom or side of the transceiver chassis see Figure 3 4 For VHF AM set the receiver to 157 000 MHz Connect a signal generator to the the VHF antenna input Set the signal generator to prod
6. OPERATING INSTRUCTIONS 2 1 FEATURES The equipment has several important operating features which provide maximum flexibility performance and versatility These features include 1 VHF and UHF bands that can be configured to be operated independently or as a single unit 2 AM or FM operation in the VHF band FM operation in the UHF band 3 The unit can be set up as a crossband FM repeater linking a VHF and UHF frequency in either direction 4 200 memory positions per band which can each be programmed with a transmit and receive frequency with 25 or 12 5 kHz channel spacing Tx Rx CTCSS tones or DPL codes and a 9 character alphanumeric title 5 Scanning of preprogrammed memories with selective memory scanning in 5 scan lists 6 Priority scan of memory channel 1 if desired 7 Direct frequency entry mode 8 Receive frequency simplex function 9 Switchable RF output power of 8 10 watts 5 watts carrier in AM or 1 watt on VHF and 1 watt or 100 milliwatts on UHF 10 Lockout of keyboard to prevent inadvertent entries 11 Variable frequency mode to manually scan up and down in 2 5 kHz steps 12 LED display variable dimming mode 13 Selectable 90 second Tx time out feature 14 Quick download of any of the VHF memory positions to the guard memories 15 PC Memory Upload or Download capability 16 Configuration Menu Pressing ENTER RCL and FUNC together while turning the radio on will put it into configuratio
7. FM encoder Audio Outputs Speaker Output Back Lighting Display Colour 1 DPL is a trademark of Motorola Corporation TFM 520 Installation amp Operating Instructions 1 2 Characteristic TFM 520 138 to 174 and 403 to 512 MHz 2 5 kHz F3E FM on VHF amp UHF 6 AM on VHF 25 or 12 5 kHz Approx L 8 0 x W 5 75 x H 3 0 Approx 5 1 Lbs 2 3 Kg Panel Mount via Dzus fasteners 40 C to 60 C 28 0 Vdc 15 Receive 1 0 A Max 1 Watt Transmit 2 0 A Max 8 10 Watt Transmit 3 2 A Max 8 10 Watt Dual Transmit 5 A Max 200 memories per band programmed with a Tx Frequency Rx Frequency b Tx Rx CTCSS tone or DPL code c 9 character alpha numeric title All CTCSS tones available All standard DPL codes All standard DTMF tones 0 5 Watts into 600 ohms 2 5 Watts min into 4 ohms 28 Volts standard or 5 Volts specify Night Vision optional Green standard or Red specify TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca TECHNICAL CHARACTERISTICS continued VHF RECEIVER FM Sensitivity at 12 dB SINAD AM Sensitivity at 12 dB SINAD Adjacent Channel Selectivity Spurious Attenuation Third Order Intermodulation Image Attenuation FM Acceptance Hum and Noise Audio Distortion Antenna Conducted Emission UHF RECEIVER Sensitivity at 12 dB SINAD Adjacent Channel Selectivity Spurious Attenuation Third Order Int
8. Controls TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 2 TECHNISONIC INDUSTRIES LIMITED www til ca 2 2 OPERATING INSTRUCTIONS 1 Switch the power on by turning the main volume clockwise Depending how the radio is configured either the last programmed or last displayed frequencies will appear on the screen The transceiver is now in normal operating mode 2 Adjust the audio level by adjusting the VHF and UHF volume knobs 3 Pressing the squelch defeat button will open all receivers to confirm they work 4 Read the display The top line will indicate which VHF memory is selected followed by a if the memory position is included a scan list an alphanumeric message and the frequency of the VHF receiver A small n before the frequency indicates 12 5 kHz narrowband channel spacing is in effect on this memory position In the receive mode the frequency is followed by an RT if a RX CTCSS tone or RX DPL code is programmed or an RX if no Receive tone code is programmed Similarly in the transmit mode either a U or TX is shown after the frequency The second line shows the same information for the UHF band The third and fourth lines indicate information about switch settings and selected tones 5 At the beginning of each line an LED indicates open squelch 6 Set the VHF UHF switch to the desired band 7 Set the FM AM switch to the desired mode for the VHF band 8 Set the HI LO switch
9. DN keys to select the memory channel that you want to assign a CTCSS tone or DPL code 3 Press the FUNC key then the TONE key The display will show RX TONE and the current tone number as well as the tone frequency in Hz 4 Use the M UP and M DN keys to select the tone number you require TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 6 TECHNISONIC INDUSTRIES LIMITED www til ca The following is a list of the standard CTCSS tones Number Tone Number Tone Number Tone 01 67 0 26 162 2 51 177 3 02 71 9 27 167 9 52 183 5 03 74 4 28 173 8 53 189 9 04 77 0 29 179 9 54 196 6 05 79 7 30 186 2 55 199 5 06 82 5 31 192 8 56 206 5 07 85 4 32 203 5 57 210 7 08 88 5 33 33 0 58 218 1 09 91 5 34 35 4 59 225 7 10 94 8 35 36 6 60 229 1 11 97 4 36 37 9 61 233 6 12 100 0 37 39 6 62 241 8 13 103 5 38 44 47 63 250 3 14 107 2 39 47 5 64 No Tone 15 110 9 40 49 2 carrier squelch only 16 114 8 41 51 2 The tones marked with 17 118 8 42 53 0 are nonstandard tones 18 123 0 43 54 9 19 127 3 44 56 8 20 131 8 45 58 8 21 136 5 46 63 0 22 141 3 47 69 4 23 146 2 48 159 8 24 151 4 49 165 5 25 156 7 50 171 3 5 Press ENTER TONE appears on the display Repeat step 3 6 The display will now show RX DPL and the current 3 digit DPL code If no DPL code is required OOO should be entered Please note that DPL codes and CTCSS tones should not be enabled simultaneously use on
10. locations for the 15 pin and 9 pin Cannon D located on the rear of the TFM 520 transceiver are shown below Pin connections are in provided in TABLE 3 1 OQOOOOOO 90000000 5690002630905 9 00X9 FIGURE 3 0 Transceiver mounted view of 15 pin female and 9 pin male connector TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 1 TECHNISONIC INDUSTRIES LIMITED www til ca MINIMUM DISTANCE FROM REAR OF PANEL TO END 1 000 OF CONNECTORS INCLUDING CABLE CLEARANCE 3 737 FIGURE 3 1 Outline Drawing for Model TFM 520 Series Transceivers TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 2 TECHNISONIC INDUSTRIES LIMITED www til ca 3 6 INSTALLATION PINLOCATIONS AND CONNECTIONS 15 Pin D Connections Use FEMALE Connector Pin Description 1 600 Ohm Output 1 2 Data Output 3 Panel Lighting 28VDC or 5VAC 4 Memory Up 5 Memory Down 6 Mic Signal Input 1 7 Main Power 28VDC 8 Main Ground 9 4 ohm Speaker Output 10 4 ohm 600 ohm Output Ground 11 Data Input 12 Unused 13 PTT 1 Ground Keying 14 Main Power 28VDC 15 Main Ground 9 Pin D Connections Use MALE Connector Pin Description 600 Ohm Output 2 PTT 2 Ground Keying Reset Background Debug Signal Ground Programming Voltage In Serial Data Out Serial Dat
11. may have occurred during transit Save the original shipping container for returns due to damage or warranty claims Check that each item on the packing slip has been shipped in the container Verify that the equipment display and backlighting configuration are the same as those ordered TRANSCEIVER INSTALLATION The TFM 520 transceiver is designed to be Dzus mounted and should be installed in conjunction with an IN 550 installation kit Figure 3 1 shows an outline drawing of the unit with dimensions to help facilitate the installation INSTALLATION KIT CONTENTS The IN 550 installation kit consists of 1 One 15 pin Cannon D mating connector female complete with crimp pins and hood 2 One 9 pin Cannon D mating connector male complete with crimp pins and hood 3 Three BNC antenna mating RF connectors male ANTENNA INSTALLATION Antenna P N s ATM 150 and ATM 403 may be obtained from Technisonic Industries Limited or a suitable equivalent may be utilized with the TFM 520 transceiver The antenna should be mounted on the bottom of the aircraft whenever possible Consult with instructions provided with the antennas Connect RF cables from antennas to the back of the TFM 520 unit by utilizing the BNC mating connector provided in the installation kit The UHF connector is located on the rear above the 15 pin D connector and the VHF connector is below the 9 pin D INSTALLATION LOCATIONS AND CONNECTIONS The pin numbers and
12. spacing in the VHF and UHF bands 1 2 DESCRIPTION The TFM 520 transceiver is a frequency agile fully synthesized airborne transceiver capable of AM or FM operation in the 138 to 174 MHz range and FM operation in the 403 to 512 MHz frequency range in 2 5 kHz increments with either 25 kHz or 12 5 kHz channel spacing The transceiver can operate without restriction on any split frequency pair in either band The TFM 520 transceiver provides 200 operator accessible memory positions per band each of which is capable of storing a transmit frequency receive frequency transmit frequency CTCSS tone or DPL code receive frequency CTCSS tone or DPL code an alphanumeric identifier for each channel and wideband 25 kHz or narrowband 12 5 kHz channel spacing assignment Operating frequency and other related data are presented on a 96 character four line LED matrix display Data entry and function control are performed via a 12 button keypad Preset channels may also be scrolled and scanned through keypad function activation Data may also be entered via an MS DOS based computer with the provided software and optional PC Up download cable P N 993390 1 1 3 PURPOSE OF EQUIPMENT The TFM 520 VHF UHF transceiver is designed to provide secondary airborne communications to facilitate operations which are typically performed in a low altitude environment The VHF transmitter section of this unit has a maximum of 10 watts output power in FM mode and 5 watts carri
13. to a blank When you have made the desired changes save the file and exit the editor Downloading 1 Select either VHF or UHF on the band select switch of the TFM 520 2 Type in dl and press enter 3 Select ASCII upload and the file VHF DAT or any other pertinent DAT file 4 When the radio has finished downloading depending on the terminal program used you may have to end the process by pressing escape 5 The TFM 520 is now ready for the next command TFM 520 Upload Download Programming Cable P N 993390 1 Wiring Diagram 9 PIN D MALE 25 PIN D FEMALE SERIAL TX DATA PORT OF PERSONAL BLACK GROUND COMPUTER FIGURE 2 2 TFM 520 Transceiver PC Up Download Cable wiring diagram TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 9 TECHNISONIC INDUSTRIES LIMITED www til ca This page left intentionally blank TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 10 TECHNISONIC INDUSTRIES LIMITED www til ca SECTION 3 INSTALLATION INSTRUCTIONS 3 1 3 2 3 3 3 4 3 5 3 6 GENERAL This section contains information and instructions for the correct installation of the TFM 520 VHF UHF transceiver Make certain that the correct frequencies are pre programmed in accordance with the equipment user s valid FCC operator s license prior to installation EQUIPMENT PACKING LOG Unpack the equipment and check for any damage that
14. to the desired RF output power 9 Select the desired memory by using the M UP and M DN buttons or the RCL button and a three digit number followed by ENTER 10 To transmit DTMF tones use the keyboard keys while holding the PTT button on the microphone There is a 5 second PTT delay after pressing a key so that you may press several DTMF keys in sequence without having to hold the PTT The keyboard returns to its normal function when the PTT is released The display always shows the status of both receivers and the transmitter The light at the left of each line indicates which receiver is receiving The display also indicates the memory channel in use A TX no TX tone codes programmed or TT either TX tone or code programmed on the right side of the display indicates which band is active when transmitting The transmit frequency is also shown In the receive mode the display shows RX beside the receive frequency if no RX tone or DPL code is programmed and RT if a CTCSS tone or DPL code is programmed While in any programming mode all receivers continue to function When the transceiver is in either of the operating frequency or CTCSS tone DPL code programming modes and you must respond to a call click the microphone PTT once the radio will not transmit during this click This will cause the transceiver to revert back to the normal operating mode and communications with the caller can proceed in the usual fashion TFM 520 Insta
15. use the 1 2 3 4 5 or M DN keys to toggle to the desired condition and press ENTER Entering the any or all of the numbers 1 2 3 4 or 5 will include that memory channel in any of the five scan lists In normal operating mode the display will later show a beside the memory channel number if it has been included in any of the 5 scan lists DIRECT FREQUENCY ENTRY MODE This mode is designed to facilitate quick frequency selection during emergency and other operational conditions requiring direct operating frequency selection This operating mode is disabled along with the programming mode when the internal disable jumper is set 1 When the transceiver is in the normal operating mode press FUNC and the desired operating frequency i e 153 2750 2 On the UHF band press and hold FUNC then 1 and the desired frequency i e 443 5500 3 You will then be asked for 12 5 or 25 0 kHz channel spacing Select with MUP or MDN and press ENTER Please note in the above operation after FUNC and 1 are entered the LED display will show memory channel OOO and then the remaining digits in the desired frequency are shown as they are entered No alphanumeric message can be entered in this mode Operation on the new frequency occurs in both transmit and receive simplex only modes If RX or TX CTCSS tones DPL codes are required they must be programmed in afterwards RECEIVE FREQUENCY SIMPLEX FUNCTION The receive frequency simplex function allows you to qu
16. used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his her own expense WARNING AND DISCLAIMER This manual is designed to provide information about the TFM 520 Every effort has been made to make this manual as complete and accurate as possible WARNING Changes or modifications not expressly approved by Technisonic Industries could void the user s authority to operate the equipment WARRANTY INFORMATION The Model TFM 520 Transceiver is under warranty for one year from date of purchase Failed units caused by defective parts or workmanship should be returned to Technisonic Industries Limited 240 Traders Boulevard Mississauga Ontario 147 1W7 Tel 905 890 2113 Fax 905 890 5338 TECHNISONIC INDUSTRIES LIMITED www til ca TABLE OF CONTENTS SECTION TITLE PAGE SECTION 1 GENERAL DESCRIPTION 1 1 INTRODUCTION pepe 1 1 1 2 DESCRIPTION cad 1 1 1 3 PURPOSE OF EQUIPMENT Paare te nete beau 1 1 1 4 MODEL VARIATION ptm 1 1 1 5 TECHNICAL CHARACTERISTICS 4250056 rege Pn 1 2 SECTIO
17. 445 TO 462 AND SECTION 7 5 GROUNDING AND BONDING IAW AC 43 13 CHAPTER 11 SECTION 3 PARA 452 6 ALL SINGLE TO BE 22 AWG MINIMUM AND ALL SHIELDED WIRE BE 24 AWG MINIMUM UNLESS OTHERWISE SPECIFIED NSIALATON OF ANTENNA IAW 43 13 1A CHAPTER 2 SECTION 3 CHAPTERS 5 amp 6 AND 43 13 2 CHAPTER 3 IF POSSIBLE THE ANTENNA SHOULD BE LOCATED A MINIMUM OF 12 FT FROM AIRCRAFT NAVIGATION RECEIVER ANTENNAS AND A MINIMUM OF 4 FEET FROM AIRCRAFT COMMUNICATIONS AND ELT ANTENNAS BE CAREFUL NOT TO CHOSE SEPARATIONS THAT CLOSELY APROXIMATE 1 4 OR 1 2 OR WHOLE NUMBER MULTIPLES OF THE NAVIGATION OR COMMUNICATIONS SYSTEM WAVELENGTH AN EQUIVALENT CIRCUIT BREAKER OR FUSE MAY BE USED MEMORY UP DOWN PUSH BUTTONS ARE OPTIONAL TFM 520 15 AVAILABLE WITH 28V OR SV PANEL LIGHTING CHECK THE CONFIGURATION CONTROL LABEL FOR THE CORRECT VOLTAGE AN CONNECT TO THE APPROPRIATE AIRCRAFT DIMMING BUSS CONNECT TO THE AIRCRAFT AUDIO SYSTEM OR STAND ALONE HEADSET JACKS INSTALLATION OF TRANSCEIVER IAW 43 13 1A CHAPTER 2 SECTION 3 AND AC 43 13 2 CHAPTER 2 PR 3 1 2 0205 RAIL OR EQUIVALENT MAY BE USED 14 TEST THE SYSTEM IN ACCORDANCE WITH THE POST INSTALLATION TEST PROCEDURE IN THE INSTALLATION AND OPERATING INSTRUCTIONS MANUAL 15 REFER TO THE AIRCRAFT STRUCTURAL REPAIR MANUAL AND THE MAINTENANCE MANUAL FOR INSTRUCTIONS AND INFORMATION PERTINENT TO THIS INSTALLATION 16 THE USE OF RED DISPLAYS SHOULD BE MINIM
18. 5 5 watts in VHF AM mode on 138 000 MHz and 174 000 MHz Verify that the UHF output power is between 0 9 to 1 0 watt on 403 000 MHz and 512 000 MHz 3 10 TRANSMITTER MICROPHONE LEVEL ADJUSTMENT 1 Set the VHF operating frequency to 156 000 MHz and Mode switch to VHF FM and connect an appropriate test receiver to the RF output connector Ensure that the output of the transceiver is terminated into a proper dummy load 2 Key the transmitter and input a 10 dBm 0 25 VRMS 1 kHz audio signal into the microphone input 3 Adjust the VHF MIC adjustment through the access hole located on the right side of the chassis see Figure 3 4 to produce a 2 7kHz deviation 4 Verify that the deviation is at least 2 3 kHz on the following frequencies 138 000 MHz 162 000 MHz and 174 000 MHz 5 For UHF perform the same procedure using the UHF Mic adjustment on the left side of the transceiver and use the following frequencies 403 000 MHz 457 000 MHz and 512 000 MHz 6 For VHF AM set the VHF operating frequency to 156 000 MHz and Mode switch to VHF AM and connect an appropriate test receiver to the RF output connector 7 Key the transmitter and input a 10 dBm 0 25 VRMS 1 kHz audio signal into the microphone input 8 Adjust the AM LEVEL adjustment through the access hole located on the right side of the chassis see Figure 3 4 to produce 80 depth of modulation 9 Verify that the modulation is between 77 to 83 on the following frequencies
19. 7 108 1 167 3500 ES FREQUENCIES RESULTS G S 2 TFM 520 PASS FAIL 334 7 108 1 167 3500 NOTES E Operate the TFM 520 transmitter on the following frequency for at least 20 seconds Observe the Transponder for any spurious replies or loss of reply to test set FREQUENCIES TRANSPONDER 1 TRANSPONDER 2 TFM 520 FAIL 515 MHz NOTES TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 5 TECHNISONIC INDUSTRIES LIMITED www til ca F Modulate the TFM 520 transmitter on the following frequencies for at least 20 seconds Observe the DME displays Look for loss of distance information on the display FREQUENCIES RESULTS EE FREQUENCIES RESULTS DME 2 TFM 520 PASS FAIL 3788080 89 EE NOTES TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 6 TECHNISONIC INDUSTRIES LIMITED www til ca G For the following tests select a frequency at the top middle and bottom of each band of the TFM 520 transceiver Test the VHF band in both the FM and AM modes 136 to 174 MHz Band 403 to 512 MHz Band Frequency 1 Frequency 2 Frequency 3 H At a safe altitude engage the autopilot or stability augmentation system Modulate the TFM 520 transmitter on the above frequencies for at least 20 seconds Observe any effect on the autopilot or stability augm
20. ED MEMORY CHANNEL USER DEFINED ALPHANUMERIC DESCRIPTION FOR CHANNEL RX INDICATES RECEIVE FREQUENCY RT INDICATES RECENE FREQUENCY WITH TONE VHF RECEIVER SQUELCH INDICATOR INDICATES NARROW BUND TX INDICATES TRANSMIT FREQUENC LIGHTS WHEN SIGNAL RECEIVED FM CHANNEL SPACING TT INDICATES TRANSMIT FREQUENCY WITH TONE INDICATES TONE FOR Techaisonid N 520 SELECTED BAND LED DISPLAY LINE 1 INDICATES VHF STATUS LINE 2 INDICATES UHF STATUS LINE 3 INDICATES VHF MODE STATUS LINE 4 INDICATES SELECTED BAND STATUS TACInI53 7S0aTT Z00 AIRLIFT UHF RECEIVER SQUELCH INDICATOR LIGHTS WHEN SIGNAL RECEIVED DISPLAYS BAND SELECTED FOR TRANSMIT AND KEYBOARD CONTROL eua j BS LHF TOHE 3 J INDICATES SELECTED VHF MODE VHF UHF VHF VOLUME CONTROL le D 1 VHF FM SQUELCH L AM INDICATES SELECTED TRANSMIT OUTPUT POWER LEVEL LOCK EA W SCAN jj uP RCL N PR0G DN 4 7 0 BAND SELECTOR SWITCH FOR TRANSMIT KEYBOARD FOR FUNCTION CONTROL REXBOARG CONTROL VHF MODE SELECTOR SETUP AND FREQUENCY DIRECT ENTRY MOMENTARY SQUELCH UHF VOLUME CONTROL OVERRIDE TEST BUTTON TRANSMIT OUTPUT POWER LEVEL FIGURE 2 1 Operator s Switches and
21. ENTS 0 nanan 3 1 3 5 ANTENNA INSTALLATION tenete enin eterne nens 3 1 3 6 INSTALLATION PIN LOCATIONS AND CONNECTIONS 3 1 3 7 WIRING INSTRUCTIONS 0 e ehe sene enne enn 3 5 3 7 1 Main Power 2 ania Lea 3 5 3 7 2 Main Ground EE 3 5 3 7 3 PTT Ground Keying 2 3 5 3 7 4 Front Panel Back Lighting 222 iter dene S 3 5 3 7 5 Audio Outputs 600 and 4 Ohms 3 5 3 7 0 Audio Output Ground eda 3 5 3 7 7 Mice Signal Input fiat hehe cade ste ob pea uir 3 5 3 7 8 Memory Up Memory Down 1111 3 5 9 729 Data C 3 5 3 8 INTERNAL PROGRAMMING AND GUARD ENABLE DISABLE JUMPER 3 6 3 9 TRANSMITTER POWER ADJUSTMENTS 000 3 7 TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca 3 10 TRANSMITTER MICROPHONE LEVEL ADJUSTMENT 3 7 3 11 AND GUARD SQUELCH ADJUSTMENT 3 9 3 12 TRANSMITTER DEVIATION ADJU
22. IZED OR AVOIDED SO AS NOT TO DETRACT FROM THE ATTENTION GETTING CHARACTERISTICS NEEDED IN WARNING AND CAUTION ANNUNCIATORS RED SHOULD BE USED TO ANNUNCIATE EMERGENCY CONDITIONS REQUIRING IMMEDIATE RESPONSE BY THE FLIGHT CREW UNITS WITH RED DISPLAYS SHOULD NOT BE LOCATED IN CLOSE PROXIMITY TO WARNING AND CAUTION ANNUNCIATORS THE INSTALLATION OF UNITS WITH RED DISPLAYS MUST BE EVALUATED ON A CASE BY CASE BASIS TO ENSURE THAT THE EFFECTIVENESS OF THE WARNING AND CAUTION ANNUNCIATORS IS NOT ADVERSELY AFFECTED ONLY USED IF THE TRANSCEIVER WILL BE OPERATED IN DUAL MODE OPERATION OF 2 BANDS INDEPENDENTLY FIGURE 3 2 Wiring connections for the TFM 520 Series Transceivers TFM 520 Installation amp Operating Instructions TiL OORE279 Rev Issue 3 3 4 TECHNISONIC INDUSTRIES LIMITED www til ca 3 7 WIRING INSTRUCTIONS Figure 3 2 shows all required connections and recommended wire sizes for the TFM 520 Transceiver 3 7 1 Main Power 28VDC The main power 28VDC 15 is connected to pins 7 and 14 of the transceiver Both pins should be connected 3 7 2 Main Ground Ground connections for the transceiver are made on pins 8 and 15 Both pins should be connected 3 7 3 PTT Ground Keying The PTT line is connected to pin 13 and should be floating when the transceiver is in receive mode and grounded during transmit mode The 2 input is on 2 of the 9 pin connecter 3 7 4 Front Panel Back Lighting Front panel back lighting connection s
23. N 2 OPERATING INSTRUCTIONS 2 1 OPERATING FEATURES nonne ne ne aide dain ennt noue ee 2 1 2 2 OPERATING INSTRUCTIONS erre keit be rk diten 2 3 2 3 PROGRAMMING INSTRUCTIONS 2 4 2 4 SCANNING FUNCTION 1 1 nemen ne e eese nnns 2 4 2 5 PRIORITY AND SELECTIVE MEMORY CHANNEL SCANNING 2 5 2 6 DIRECT FREQUENCY ENTRY MODE 2 5 2 7 RECEIVE FREQUENCY SIMPLEX FUNCTION 2 b 2 8 KEYBOARD LOCKOUT FUNCTION 2 6 2 9 VARIABLE FREQUENCY MODE FUNCTION 2 6 2 10 LED DISPLAY VARIABLE DIMMING MODE 2 6 2 11 90 SECOND TRANSMITTER TIMEOUT FEATURE 2 6 2 12 PROGRAMMING CTCSS TONES AND DPL CODES 2 6 2 13 MEMORY PROGRAMMING DOWNLOAD CAPABILITY 2 8 SECTION 3 INSTALLATION INSTRUCTIONS 3 1 GENERAL E HE ee 3 1 3 2 EQUIPMENT PACKING LOG 1 tenerent neri 3 1 3 3 TRANSCEIVER INSTALLATION 3 1 3 4 INSTALLATION KIT CONT
24. P and M DN keys will make the frequency count up or down in steps of 1 MHz You can not change the label The frequency in this mode can not be stored in memory To exit this mode recall one of the 200 memory channels i e RCL 0 0 1 Variable frequency mode is disabled when the internal entry disable jumper is set LED DISPLAY VARIABLE DIMMING MODE 1 With the transceiver in normal operating mode press the UP or DN keys to increase or decrease the intensity of the LED display 2 Once maximum intensity of the display is acheived the UP key no longer functions Conversely once minimum intensity is reached the DN key ceases to function 90 SECOND TRANSMITTER TIME OUT FEATURE A selectable 90 second transmitter time out feature is provided to prevent accidental continuous transmission in the event of a faulty PTT switch With this feature enabled the transceiver will stop transmitting after the PTT is engaged continuously for 90 seconds The timer is reset by releasing then re engaging the PTT switch Press the FUNC then the M UP key Use the M UP and M DN keys to select 90 SEC which enables the feature or NONE which disables it PROGRAMMING CTCSS TONES AND DPL CODES CTCSS tones and DPL codes are available in FM mode on VHF and UHF CTCSS tones PL tones or Digital DPL codes can be assigned to each memory channel To program a tone code to a memory channel 1 Select the desired band on the band select switch 2 Use the M UP and M
25. STMENT 3 9 LIST OF FIGURES FIGURE TITLE 2 1 Operator s Switches and Controls 2 2 2 2 PC Up Download Cable Wiring Diagram 2 9 3 0 Transceiver mounted view of 15 pin female and 9 pin male connector 3 2 3 1 Outline Drawing ed 3 2 3 2 Wiring CONMECLIONS ICA Euge 3 4 3 3 Internal Enable Disable Jumper Locations 3 6 3 4 External Adjustment Access Holes ssssssssssssseee 3 8 3 5 VHF Deviation Adjustment Potentiometer Location 3 11 3 6 Deviation Adjustment Potentiometer Location 3 12 LIST OF TABLES TITLE 3 1 9 pin D and 15 Pin D Connections 1474 1 1 eene 3 3 TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca SECTION 1 GENERAL DESCRIPTION 1 1 INTRODUCTION This publication provides operating and installation information on the TFM 520 transceiver manufactured by Technisonic Industries Limited The unit offers an extended frequency range with selectable channel
26. STRIES LIMITED www til ca UHF 1 Remove the top cover of the transceiver 2 Unplug the white coax from the guard receiver and remove the front panel 3 Remove the guard receiver tray 4 Replace the front panel and select the UHF band 5 Set the UHF operating frequency to 457 000 MHz and connect an appropriate test receiver to the RF output connector Ensure that the output of the transceiver is terminated into a proper dummy load 6 Key the transmitter and input a 10 dBm 2 5 VRMS 2 5 kHz audio signal into microphone input 1 if in single mode or microphone input 2 if in dual mode 7 Adjust the wideband deviation limit potentiometer R30 on the UHF Rx Tx module see Figure 3 6 to produce a 4 25 kHz deviation Select narrow band mode on the UHF band and adjust the narrowband deviation limit potentiometer R76 on the UHF Rx Tx module to produce a 2 15 kHz deviation 8 Verify that the deviation does not exceed 5 kHz for wideband and 2 5 kHz for narrowband on 403 000 MHz and 512 000 MHz Re adjust R30 or R76 as required if the deviation exceeds 5 kHz or 2 5 kHz respectively 9 Replace the bottom cover TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 10 DEVIATION ADJUSTME NARROW BAND EVIATION ADJUSTMENT TECHNISONIC INDUSTRIES LIMITED www til ca VHF Receiver Transmitter PCB Module 1 22 3 oF ok L4 1 6
27. Ti TFM 520 VHF UHF FM AIRBORNE TRANSCEIVER Installation and Operating Instructions TiL Document No OORE279 Revision N C Issue 3 FEBRUARY 2001 Technisonic Industries Limited 240 Traders Boulevard Mississauga Ontario 147 1W7 Tel 905 890 2113 Fax 905 890 5338 www til ca Copyright by Technisonic Industries Limited All rights reserved REVISION HISTORY OORE279 SECTION REV DESCRIPTION DATE EDITED BY REV n c FEB 2001 issue 1 Issue 2 New document template added headers footers revision page and warranty page Removed old address changed to new MAR 2012 FM Issue 3 Global Correct typos as found Front page Title pg Installation amp Operating Instructions 3 12 Renamed Fig 3 5 to 3 6 item 7 pg 3 10 A 6 Para F Correct typo TDFM 7300 to TFM 520 APR 2012 FM CAUTION STATIC SENSITIVE This unit contains static sensitive devices Wear a grounded wrist strap and or conductive gloves when handling printed circuit boards FCC COMPLIANCE INFORMATION This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and
28. a In c N Mic Signal Input 2 TABLE 3 1 Wire connections on a 9 pin and 15 Pin D Connector TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 3 TECHNISONIC INDUSTRIES LIMITED www til ca TFM 520 FM TRANSCEIVER A 9 PIN 0 FEMALE CONNECTOR ON RADIO USE MALE PLUG 600 OHM AUDIO OUT 2 15 0 MALE CONNECTOR ON RADIO USE FEMALE PLUG 28 VOC MIC IN 2 SIGNAL GROUND PTT IN 2 28 VDC POWER 28 VDC POWER 20 AWG P MEMORY UP ez pe RG 142 U OR EQUIVALENT MEMORY DOWN PANEL LIGHTING 600 OHM AUDIO OUT 1 MIC IN 1 SIGNAL GROUND PTT IN 1 POWER GROUND POWER GROUND VHF ANTENNA UHF ANTENNA ITEM PART NUMBER DESCRIPTION SPEC MATERIAL 1 1 520 VHF FM COMMUNICATIONS TRANSCEIVER TECHNISONIC INDUSTRIES LIMITED 1 2 150 ANTENNA VHF TECHNISONIC INDUSTRIES LIMITED 1 3 7274 11 5 CIRCUIT BREAKER 5 AMPS KLIXON 1 4 405 ANTENNA UHF TECHNISONIC INDUSTRIES LIMITED NOTES 1 ALL WIRE IAW MIL W 22759 UNLESS OTHERWISE SPECIFIED 2 ALL CABLE IAW MIL C 27500 UNLESS OTHERWISE SPECIFIED 3 COAXIAL CABLE IAW MIL C 17 UNLESS OTHERWISE SPECIFIED DO NOT USE COAX WITH PVC INSULATION 4 FABRICATION amp INSTALLATION OF WIRING HARNESS IAW AC 43 13 1A CHAPTER 11 SECTION 3 PARA
29. affected in the same way A complete discussion of all the standards of airworthiness to be applied in assessing EMI effects is beyond the scope of this document PROCEDURE A A Operate the TFM 520 transmitter on the following frequencies for at least 20 seconds in both the FM and AM modes Observe the GPS for any degradation in satellite status or availability or flags FREQUENCIES GPS 1 GPS 2 TFM 520 1143 180 MHz 143 1825 MHz 157 5000 MHz 157 5425 MHz 512 MHz NOTES TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 2 TECHNISONIC INDUSTRIES LIMITED www til ca Determine if the image frequency for the VHF Comm falls within the range of the TFM 520 If so select a set of frequencies that will cause the TFM 520 to be set as close as possible to the image frequency Any one of the many possible sets will suffice Record those values in the spaces provided in the following chart Modulate the TFM 520 transmitter on the following frequencies for at least 20 seconds Listen for any noise or detected audio signals on the VHF comm Example Bendix King KY 196A The first IF frequency is 11 4 MHz The L O is above the received frequency high side injection therefore the image frequency is 22 8 MHz above the selected frequency Set the KY 196A to 120 000 MHz and the TFM 520 to 142 8000 MHz FREQUENCIES RESULTS 135 975 138 0000 EE 121 150 157 5000
30. e 9 Keep repeating step six until the last space is set The display will show SCAN or LOCKOUT to enable this memory position as part of a scan list or lock it out of the scan list Use the 1 2 3 4 5 and M DN keys to toggle between these functions for details see paragraph 2 5 Once the desired condition has been selected press ENTER TFM 520 display will show a beside the memory channel number if scan is enabled 10 The display will now show the current memory number Type in the 3 digit number of the memory you want to save to if different from displayed one and press ENTER 2 4 SCANNING FUNCTION 5 second talkback delay Select the band you wish to scan with the band switch To start scanning the memory channels press FUNC then SCAN and then the number 1 2 3 4 5 of the desired scan list The radio will scan through all the preset memory positions in the selected scan list see above paragraph for priority and selective scan features and will lock on to the first active channel in the scan sequence It will remain on the channel until it becomes inactive Scanning will resume again after five seconds of inactivity To exit the scan mode press the SCAN key This will cause the radio to revert back to the normal operating mode If while scanning you hear a call for you 1 Respond to the call within 5 seconds When scanning is interrupted by an incoming signal the channel will remain open for five seconds before resu
31. e or the other 7 Use the keypad to enter the required 3 digit octal DPL DCS code A list of all usable and unique 3 digit DPL DCS codes follows 017 051 116 156 243 266 346 431 466 612 721 023 053 122 162 244 271 351 432 503 624 731 025 054 125 165 245 274 356 445 506 627 732 026 065 131 172 246 306 364 446 516 631 734 031 071 132 174 251 311 365 452 523 632 743 032 072 134 205 252 315 371 454 526 654 754 036 073 143 212 255 325 411 455 532 662 043 074 145 223 261 331 412 462 546 664 047 114 152 225 263 332 413 464 565 703 050 115 155 226 265 343 423 465 606 712 indicates GE Digital Coded Squelch DCS Code 8 Press ENTER TX DPL appears on the display Repeat step 7 TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 7 TECHNISONIC INDUSTRIES LIMITED www til ca 2 13 PC MEMORY PROGRAMMING UP DOWNLOAD CAPABILITY The TFM 520 transceiver can be programmed by a MS DOS based personal computer This is an alternative to programming data manually by the keypad The programmed information can also be copied from the TFM 520 and stored in a PC There are two ways to download or upload from the TFM 520 One method is to use a terminal program such as is supplied with MS Windows 3 1 95 98 and NT The other method is to use Technisonic software A 3 5 disk containing the required PC up download software is provided with each TFM 520 transceiver To use a terminal program follow
32. e with existing aircraft systems TEST CONDITIONS The TFM 520 transceiver should be installed and function tested The antenna VSWR should be checked A forward reverse power check with a in line wattmeter should show no more than 1096 reflected power For the following tests insure that the power switch is in the high position METHODOLOGY Most of the EMI tests can be accomplished on the ground In some cases flight testing is required or is easier If the aircraft is approved for IFR operations then it is mandatory that interference between the TFM 520 Airborne FM and the approach aids be checked in flight The GPS should be operational and navigating with at least the minimum compliment of satellites The VHF comm should be set to the frequencies indicated with the squelch open VOR DME receivers should be set to the frequencies indicated and selected for display If possible set up a DME ramp test set on the frequencies indicated and adjust the output until the flags are out of view The transponder and encoder should be monitored with ramp test equipment Set the output of the transponder test set to 3db above the output necessary to achieve 9096 reply If possible set the ADF to a nearby navigation station Modulate the TFM 520 transmitter on the indicated frequencies for at least 20 seconds Make sure to test both the VHF transmitter in both the FM and AM modes Observe the GPS for any degradation in satellite status or availability
33. entation system Observations Perform a coupled ILS approach to the aircraft s certified limits Modulate the TFM 520 transmitter on the above frequencies for at least 20 seconds Observe any effect on the autopilot Repeat for second flight director autopilot if equipped Observations TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 7 TECHNISONIC INDUSTRIES LIMITED www til ca J List the power plant fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting Assess the results STEP SYSTEM PASS FAIL NOTES 1 Com 1 amp 2 UHF 403 512 MHz Band 2 Transponder amp Encoder VHF 138 174 MHz Band 3 ADF 1 amp 2 4 VG 5 Glideslope 1 amp 2 UHF 403 512 MHz Band 6 VOR LOC 1 amp 2 UHF 403 512 MHz Band 7 Compass 8 Directional Gyro 9 Fuel Pressure 10 Oil Temp TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 8 TECHNISONIC INDUSTRIES LIMITED www til ca 11 Amps 12 Bus Voltage 13 Fuel 14 Nt 15 TOT 16 Torque 17 Annunciators 18 Digital Clock 19 Oil Pressure TFM 520 Installation amp Operating Instructions A 9 TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca STEP SYSTEM PASS FAIL NOTES
34. er in AM mode which may be reduced by a front panel switch to 1 watt in order to reduce interference to land based systems The UHF transmitter section has an output power of 1 watt in the HI setting and 100 milliwatts in the LO setting 1 4 MODEL VARIATION There are four variations of the Model TFM 520 Transceiver All units offer identical features and performance except for the following differences TFM 520 P N 991101 1 GREEN display with 28 Volt back lighting TFM 520 P N 991101 1 5V GREEN display with 5 Volt back lighting TFM 520 P N 991101 2 RED display with 28 Volt back lighting TFM 520 P N 991101 2 5V RED display with 5 Volt back lighting TFM 520 P N 991101 1 NIGHT VISION display with 28 Volt back lighting TFM 520 P N 991101 1 NV 5V NIGHT VISION display with 5 Volt back lighting P N s 991101 1 991101 2 and 991101 1 NV are always provided with 28 Volt back lighting unless a specific request is made for 5 Volt AC operation TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 1 1 TECHNISONIC INDUSTRIES LIMITED www til ca TECHNICAL CHARACTERISTICS Specification GENERAL Model Designation Frequency Ranges Tuning Increments Operating Modes Channel Spacing Physical Dimensions including heatsink Weight Mounting Operating Temperature Range Power Requirement Voltage Current Frequency Selection CTCSS squelch encoder FM DPL digital squelch encoder
35. ermodulation Image Attenuation FM Acceptance Hum and Noise Audio Distortion Antenna Conducted Emission TFM 520 Installation amp Operating Instructions Better than 0 35 uV Better than 1 50 75 dB 25 kHz 70 dB 12 5 kHz 90 dB 70 dB 80 dB 6 kHz Better than 45 dB less than 5 less than 70 dBm Better than 0 35 uV 70 dB 25 kHz 60 dB 12 5 kHz 80 dB 70 dB 60 dB 6 kHz Better than 40 dB less than 5 less than 70 dBm TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca TECHNICAL CHARACTERISTICS continued VHF and UHF TRANSMITTER VHF RF Power Output UHF RF Power Output Output Impedance Maximum FM Deviation In narrowband mode Spurious Attenuation Frequency Stability Microphone Circuit Sidetone Output Harmonic Attenuation FM Hum And Noise Audio Input FM Audio Distortion AM Audio Distortion TFM 520 Installation amp Operating Instructions 1 4 10 watts HI or 1 watt LO FM 5 watts HI or 1 watt LO AM carrier 1 watt HI or 100 milliwatts LO 50 ohms 5 kHz 25 kHz mode 2 5 kHz 12 5kHz mode 90 dB below carrier level 2 5 ppm Carbon or equivalent O 5W max into 6000 ohms 65 dB below carrier level 40 dB 50 mV at 2 5 kHz into 200 ohms input circuit for 3 5 kHz deviation adjust lt 5 lt 10 at 80 mod TiL OORE279 Rev N C Issue 3 TECHNISONIC INDUSTRIES LIMITED www til ca SECTION 2
36. ernal Enable Disable Jumper Locations TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 6 TECHNISONIC INDUSTRIES LIMITED www til ca 3 9 TRANSMITTER POWER ADJUSTMENTS The power settings for the TFM 520 are adjusted at the factory to the following levels VHF FM power 10 watts max high power and 1 watt low power VHF AM power 5 watts carrier high power and 1 watt carrier low power UHF power 1 watt max high power and 100 milliwatts low power These settings are effective over the operating bandwidth of the transceiver If transmitter power re adjustment is required perform as follows 1 Select the transmitter that you wish to adjust using the band select and VHF Mode switches Connect an RF through line wattmeter to the appropriate antenna connector Set the operating frequency to 156 000 MHz for VHF or 457 000 MHz for UHF and key the transmitter In low power mode adjust the appropriate potentiometer on the left side of the chassis see Figure 3 3 to produce 1 0 watt of RF output power for VHF FM VHF TX LO or AM AM TX LO and 100 milliwatts for UHF UHF TX LO 4 In high power mode adjust the appropriate potentiometer on the left side of the chassis to produce 9 5 watts of RF output power for VHF FM VHF TX 5 watts carrier for VHF AM AM TX 1 watt for UHF UHF TX Verify that the VHF output power is between 9 and 10 watts in VHF FM mode and 4 5 to
37. hould be made on pin 3 of the transceiver The opposite end of this lead should be connected to the panel lighting system of the aircraft Before connecting verify the required panel lighting voltage 28VAC or 5VAC on the transceiver configuration control label 3 7 5 Audio Outputs 600 ohms and 4 Ohms There are two audio outputs available 1 amp 2 600 ohm audio output 1 has audio from both bands and the guard in single operator mode When in dual operator mode 600 ohm output 1 has audio from the VHF band and guard only while the UHF audio will be on the 600 ohm output 2 3 7 6 Audio Output Ground Pin 10 is the ground for both the 4 ohm and 600 ohm audio output signals 3 7 7 Mic Signal Input The microphone input signal is to be provided on pin 6 utilizing shielded wire with the shield grounded to pin 10 Microphone signal 2 is on pin 6 of the 9 pin D connector 3 7 8 Memory Up Memory Down Remote scrolling through the 200 memory positions can be achieved by providing a ground to pins 4 up and 5 down through a momentary contact cyclic switch The memories will scroll only on the band selected 3 7 9 Daeta Input Data communications equipment requiring direct access to the modulator and discriminator an be connected via pins 2 and 11 Data cannot be transmitted in CANADA unless equipment is approved for use with the TFM 520 by the communications regulatory authority TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C I
38. ickly change the transmit frequency when operating on a split pair repeater semi duplex mode to the receive frequency to allow direct communications i e If you are transmitting on 152 000 MHz and receiving 152 555 MHz select VHF on the band select switch and press FUNC then UP to transmit on 152 555 MHz To return to the split pair condition you must recall the memory channel again This is quickly done by pressing M UP for one step up then back down one step with the M DN key TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 5 2 8 2 9 TECHNISONIC INDUSTRIES LIMITED www til ca KEYBOARD LOCKOUT FUNCTION The keyboard can be locked out so that inadvertent pressing of keys does not affect any function or parameter on the radio To lock the keyboard press FUNC then LOCK This will disable all keyboard functions except keyboard unlock in the receive mode The DTMF function during transmit will not be affected To unlock the keyboard press and hold the LOCK key for two seconds until the display indicates UNLOCK VARIABLE FREQUENCY MODE FUNCTION To enter variable frequency mode press RCL 0 0 0 then ENTER or enter a frequency in the direct entry mode described above The memory channel that you were just in will still be valid but now you can manually adjust the frequency with the M UP M DN UP and DN keys The UP and DN keys will make the frequency count up or down in steps of 2 5 kHz The M U
39. ile VHF DAT or whatever then press the enter key on the TFM 520 5 When the radio has finished uploading depending on the terminal program used you may have to end the process by pressing escape 6 The TFM 520 is now ready for the next command TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 8 TECHNISONIC INDUSTRIES LIMITED www til ca Editing the File If you wish to edit the information in the file any text editor such as DOS Edit or WordPad can be used The information is displayed in the following manner 001 CHARACTER 157 0000RX 157 0000RX CTCSS 64RX 64TX DPL 000RX 000 12345 002 CHARACTER 157 0000RX 157 0000RX CTCSS 13RX 13TX DPL 000RX 000TX NONE 003 CHARACTER 157 0000RX 157 0000RX CTCSS 64RX 64TX DPL 000RX 000TX 12345 004 CHARACTER 157 0000RX 157 0000RX CTCSS 64RX 64TX DPL 152RX 152TX 2 45 etc 001 Memory number CHARACTER 9 character alphanumeric label 157 0000RX Receive frequency 157 0000TX Transmit frequency CTCSS 64RX 64TX Receive and transmit CTCSS tones DPL 152RX 152TX Receive and transmit DPL codes 12345 Scan lists that the memory will be included in NONE for lockout N Narrow band blank for wide band The spacing and format of the file must not be changed otherwise the download will not work Capital letters must be used Only characters available in the TFM 520 can be used in the label Illegal characters will be changed
40. llation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 3 TECHNISONIC INDUSTRIES LIMITED www til ca 2 3 PROGRAMMING INSTRUCTIONS To program one of the 200 memory channels in one of the bands 1 Select the desired band on the band select VHF UHF switch Changes to the programming modes or functions are effected on the band to which the bandswitch is selected 2 Press the FUNC key The display will show the function prompt 3 Press the PROG key The display will show the current receive frequency with a flashing curser on the first or second digit The first digit is always a one lt 1 gt on the VHF band 4 Type in the desired receive frequency If you type in a frequency which is not 2 5 kHz step the nearest valid frequency will be automatically selected 5 The curser will return to the second digit You can retype the frequency if you have made an error or press ENTER to continue 6 The transmit frequency will be displayed with the curser on the second digit Follow the same method as in step 3 and 4 7 The channel spacing increment of either 25 0 or 12 5 kHz is now displayed Use the M UP and M DN keys to select the desired channel spacing for the memory position then press ENTER 8 The alpha numeric title is now displayed Use the M UP and M DN keys to scroll through the alphabet numbers and symbols When the desired character is displayed press ENTER to advance to the next character Press 1 to backspac
41. ming scanning 2 During communications the five second timer is reset from the last Rx or Tx signal encountered The radio resumes scanning once the Rx or Tx activity has ceased for more than five seconds The SCAN key must be pressed to exit the scan mode TFM 520 Installation amp Operating Instructions TiL OORE279 Rev Issue 3 2 4 2 5 2 6 2 7 TECHNISONIC INDUSTRIES LIMITED www til ca PRIORITY SCANNING SELECTIVE MEMORY CHANNEL SCANNING amp SCAN LISTS Instead of breaking up the 200 channels into blocks for scanning the TFM 520 has 5 scan lists per band Any of the 200 channels can be assigned to any one or more of these 5 scan lists This means the channels do not have to be repeated for them to be in more than one block and that you are not limited to the number of channels that you can scan at once since all 200 channels can be put into any scan list The priority memory channel is always memory position number 1 The priority memory channel is scanned every other step i e 121314151 to ensure that no incoming messages are missed The priority channel can be locked out which will result in the normal scanning of the other memory positions Selective memory scanning allows the user to select which of the 200 memory channels are to be scanned or locked out when the scan function is invoked To use this feature follow the PROGRAMMING INSTRUCTIONS found in paragraph 2 3 Once the screen displays SCAN or LOCKOUT
42. n mode The programming features affected are a DPL Can be turned on or off with the MUP and MDN 4 and 7 keys This only removes the DPL entry step from the programming sequence and does not stop memories that already have DPL codes from working This also applies to the rest of the on off configurable items b SCAN Can be disabled Selecting FUNC and SCAN will do nothing if Scan is off The scan list indicator will still display if was previously programmed c Rx CTCSS Can be turned on or off from the programming sequence This affects only the CTCSS tones for receive 9 LAST MEM set to on the last memory channel on the display will be what comes up when the radio is turned on If set to off the last memory that changes were made to will be what comes up when the unit is switched on e DUALMODE If set to on the UHF and VHF bands are operated independently and simultaneously The radio is shipped with this feature OFF f SIDETONE The TX audio circuit becomes active allowing you to adjust the sidetone level with the VHF volume knob When the desired level is reached press ENTER and this level will be set for both VHF and UHF bands TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 2 1 TECHNISONIC INDUSTRIES LIMITED www til ca INDICATES THAT MEMORY CHANNEL WILL BE SCANNED INDICATES RECEIVE FREQUENCY DURING RECEIVE AND TRANSMIT FREQUENCY DURING TRANSMIT INDICATES SELECT
43. or flags Listen for any noise or detected audio signals the VHF commis Listen for any noise or detected audio signals on the VOR LOC receiver audio look for any moment of flags or needles on the VOR LOC GS navigation display s Observe the transponder for any loss of reply or spurious reply List the power plant fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting Assess the results If the aircraft is equipped with an autopilot or a stability augmentation system then test fly the aircraft and verify that operation of the TFM 520 transceiver does not have adverse effects on these systems After checking for gross effects at a safe altitude fly an approach with each of the different navigation systems coupled to the autopilot ILS GPS ETC and look for any anomalies TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 A 1 TECHNISONIC INDUSTRIES LIMITED www til ca RESULTS If the installed system passes all of the applicable EMI tests then no further action is required If interference is observed then the interference must be assessed against the appropriate standards of airworthiness for the system in question For example it is permissible for a VFR certified GPS to lose navigation capability while the TFM 520 unit is transmitting providing that it recovers properly and promptly but it is not permissible for an IFR Approach certified GPS to
44. ssue 3 3 5 TECHNISONIC INDUSTRIES LIMITED www til ca 3 8 INTERNAL PROGRAMMING ENABLE DISABLE JUMPER The programming and direct frequency entry modes can be disabled by removing the internal enable disable jumper strap from pins 1 and 2 of J10 Removal of this jumper will prevent operation on any frequencies other than those programmed in the 400 memory positions and two guard receiver memory positions Guard Entry Disable J11 is not applicable on the TFM 520 The transceiver is always shipped with jumper J10 in the entry enable positions To place the jumper in the disable position Remove the top cover of the radio Remove both the left and the right sides Unplug the white coax from the AM receiver board Remove front panel Remove the AM receiver tray Remove the antenna filter cover and desolder the antenna connector wire Remove the UHF module Set or remove jumper as necessary Re assemble the radio in reverse order WO oro Microprocessor Control Unit MCU PCB Module E ut PP d N ES 04 jenes 8 1 D ze 1 E 1 ob F RIO 1 1 1r 16 1 2 4972213 7 ESI L ENT ISABLE JUMPER fe eg kes 1 Wi ARD ENTRY DISABLE poss I JUMPE i iL 104 Ul 1 24 1 1 1 18 I 1 1 1 1 FIGURE 3 3 Int
45. the instructions below Requirements 1 PC compatible computer with any monitor 3 5 floppy drive and a serial port 2 Bench power supply of 28 volts DC 3 PC download cable P N 993390 1 which can be supplied or made from the wiring diagram in figure 2 1 Connections 1 With the PC turned off plug the 25 pin male D connector into a serial port 2 Plug the 9 pin D connector into the back of the TFM 520 transceiver 3 Connect the power supply to the TFM 520 Using the Terminal Program 1 Switch on the power supply and the TFM 520 2 Start the terminal program on the computer 3 The terminal program should be configured for the following Baud rate 9600 Parity None Data Bits 8 Stop Bits 1 ASCII file output By line with a pace character of 05 the club 4 The TFM 520 has the following commands Reset Resets the radio in the same way as it does when the power is turned on ul Uploads memory channels from the TFM 520 to a file in the PC um Displays a single memory channel from the TFM 520 dl Downloads a file in the PC to the TFM 520 memory channels Uploading 1 Select either VHF or UHF on the band select switch on the TFM 520 Separate files are to be created for each band Guard frequencies show up at the end of a VHF upload 2 in ul and press enter The computer will respond with Start terminal input and press enter on the TFM 520 4 Select ASCII download and name the f
46. uce a 30 modulated 1 kHz tone on 157 000 MHz Increase the signal generator RF level from 1 0 uV until the squelch indicator LED is on Verify the squelch opens at the desired level If not remove the top cover of the radio and re adjust receiver squelch potentiometer R26 on the AM receiver board Replace the top cover and verify that the squelch opens at the desired level 3 12 TRANSMITTER DEVIATION ADJUSTMENT VHF FM and UHF VHF 1 Remove the bottom cover of the transceiver 2 Set the VHF operating frequency to 157 000 MHz and the VHF Mode switch to FM Connect an appropriate test receiver to the RF output connector Ensure that the output of the transceiver is terminated into a proper dummy load 3 Key the transmitter and input a 10 dBm 2 5 VRMS 2 5 kHz audio signal into microphone input 1 4 Adjust the wideband deviation limit potentiometer R30 on the VHF Rx Tx module see Figure 3 5 to produce a 4 25 kHz deviation Select narrow band mode on the VHF band and adjust the narrowband deviation limit potentiometer R76 on the VHF Rx Tx module to produce a 2 15 kHz deviation 5 Verify that the deviation does not exceed 5 kHz for wideband and 2 5 kHz for narrowband on 138 000 MHz and 174 000 MHz Re adjust R30 or R76 as required if the deviation exceeds 5 kHz or 2 5 kHz respectively 6 Replace the bottom cover TFM 520 Installation amp Operating Instructions TiL OORE279 Rev N C Issue 3 3 9 TECHNISONIC INDU
47. with transportation charges prepaid Repaired or replacement equipment will be returned to the customer with collect freight charges If the failure of a transceiver occurs within the first 30 days of service Technisonic will return the repaired or replacement equipment prepaid Technisonic reserves the right to make changes in design or additions to improvements its products without obligation to install such additions and improvements in equipment previously manufactured This Warranty is in lieu of any and all other warranties express or implied including any warranty of merchantability or fitness and of all other obligations or liabilities on the part of Technisonic This Warranty shall not be transferable or assignable to any other persons firms or corporations For warranty registration please complete the on line Warranty Registration Form found at www til ca
Download Pdf Manuals
Related Search