KRT2 Operation and Installation Manual - Delta
Contents
1. C1Z CAA SM XXXXXXZBAAA Y Y M B3F3 XXA Power Supply 9 VDC to 33VDC test 12VDC e Transmitter 2 0 A typ e Receiver 0 1A e llumination 0 02A e Audio Power amp Up to 1A emergency operation 9 VDC Power Consumption Standby 1W Transmit 30 W Frequency Range 118 000 136 995 MHz Frequency Stability 5 ppm external fuse required 4 A slow blow Compass Safe Distance 30 cm 44 of 46 ABES User amp Installation manual O bla I1 E pu VHF Communication Transceiver Revision 5 A silicio TRANSMITTER POWER OUTPUT 6 W nominal 4 W minimal HARMONIC DISTORTION 10 at 70 modulation SIDETONE OUTPUT gt 0 5W an 3000 head set output MICROPHONE INPUTS 2 x standard 50mV 2V into 1000 or 2 x dynamic HARMONIC CONTENT gt 60dBc MODULATION FIDELITY deviation lt 6 dB von 350 2500Hz CARRIER NOISE LEVEL gt 35dB at 70 Modulation index UNWANTED FREQUENCY 1kHz at m 0 1kHz MODULATION DUIY CYCLE 2 minutes on 4 minutes off automatic turn off after 2 minutes continuous transmitter operation RECEIVER SENSITIVITY 105 dBm 56 dB S N N m 30 1 kHz BANDWIDTH 25 KHZ 6 dB bandwidth gt 8 0 kHz BANDWIDTH 8 33 KHZ 6 dB bandwidth gt 2 78 kHz SELECTIVITY 40 dB bandwidth 17 0 kHz channel spacing 8 33 KHZ SPEAKER OUTPUT 24 W into 4 0 Deviation des NF output lt 6 dB AGC CHARACTERISTIC from 10 uV to 10 mV SQUELCH Automatic Squelch adjustable SPURIOUS RESPONSES2. Doc Nr y User amp Installation manual BE OD ANON VHF Communication Transceiver MAINTENANCE GMBH D AINTENANCE Gi oftware 5 VHF Communication Transceiver P N 100 Operation and Installation Manual 1 of 46 User amp Installation manual an VHF Communication Transceiver DE 3000 800100e E V B MAINTENANCE GMBH Revision 5 0 eo AA Record of Revisions Revision Date Subject BEEN List of Service Bulletins SB Service Bulletins have to be inserted in the manual and entered in the table Date Date SB Number Issued Inserted Unit overview Item No Product Overview Basic Version Introduction of e 2 Standard Microphone Inputs e Auxiliary Audio Input e DUAL Watch Function 2 of 46 A Doc Nr User amp Installation manual ee VHF Communication Transceiver Revision 5 0 KRT2 amp KRT 2A 1 TABLE OF CONTENTS GENERAL c 5 IN PEE i a 5 172 DS VUNG OG recreos dim EURbUNEE 6 1 3 E e OU po 7 14 KRI lranscetvet Proporta 7 CONTROLE GGA mE 8 2 1 Control Elements Overview scccsssscsssasccnzcacance onnencssnereces nini nann E AN E RONE REESE iiai 8 Di NOUS perce cere UU ES o PI acest 10 OPERATION I diia iaa ordre 12 dele ENE it a 12 ANA A mmm 12 O sese o e LO NETTO O SU 12 o Dir ct PrequenCy SeleCDOD maragionacinanaticnacose o aes sa En E aS RE E ias PER Sei Ober ar dapes
3. 13 3 3 2 Frequency Selection from the Favourites List ooonccnnnccccnnonononnnnnnnnnonononannnnnos 13 3 3 3 Storing and Editing Favourites sese 14 PD Fa TN IU RR ces Gems eaves iv EDT 16 WEE VOM m T TU Tm UT 16 Iaa RR TM ITMTMTMTM 16 3 4 3 VOX Intercom Voice Trigger Level Setting oooooonnccnnncncnnnnnnocncnnnnnnnnnnnanononnss 17 Dd TXm PIT SWC ele COU senere cr isa eus ehito qui Te rtis e hi riscos 17 S45 JN TE InterCom Volume sero e OA 18 3 4 6 EXT External Audio Input VoluUtrie cei otro too eto Enea Ug aeu Eo cra Laetus 18 3 4 7 DIM Display Brightness Batt voltage cccccccoooooonncnnnnnnnnnnnnnnonnnonnnnnnnnnananononos 18 SN MEE CON Display COMAS RET TET 18 ni E A oo e In 18 IAI A ES Emo sens ssdescaeueae 19 oss eee ENSE AA A PO O O rte ener enter A Tenner rene rer 21 2 0 Ealsmiter OO Oea E 23 Iele S II SETON O ITE EEA E AAA S 24 Didi Opie SITO TONO E E E A E 24 3 6 Resetung TO factory SOLI BED S sieisen nenei ae ed d ia r ea 25 S NE oe Oa A e O AA Ia 26 3 9 1 ERASE Erasing the Favourites Listando 26 I CE a E A N 27 ROOG ONTON AAA o E E AA 27 LAUINA A e 28 dio MIStAP ALON LS tdo N EEE E 28 Dil le ies oo AAN UN e 28 SE vos UAM o CO O cea ceeaceneeea st daaconics cece 28 5 4 Unpacking and Inspecting the Equipment esses 20 AA II E E 29 50 Blestrical Be ni ent ET TT 30 Sud JeiopIone C OMG CLIC sente triana 30 OZ
4. 3 7 1 Optical side tone Especially on glider use where no headset to get the side tone it is very helpful to see the microphone working At left lower side there is a modulation indicator showing the talking activity At no modulation it becomes a small dot approximately in the centre Also it indicates a bad antenna matching by getting far out of the centre 24 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 pS KATES KET 2A 3 8 Resetting to factory settings Returning to the factory settings can only be initiated during power up During power up the MEMORY and DUAL buttons must be pressed simultaneously and the display will show SET DEFAULTS When the buttons are released the resetting to the factory settings takes place When resetting is completed DONE is displayed Resetting tot he factory settings will not change any data in the favourite list memory 25 of 46 AE riam Us User amp Installation manual O Lan RF id can Communication Transceiver MAI NTENANCE GMBH Revision 5 0 pS EA 3 9 SET UP Menu During power up the MEMORY buttons must be pressed There are two functions within the Set up menu e ERASE Erasing of the favourites frequency and designator e Channel Spacing 25kHz 8 33kHz Programming of the Set up is done with the lower 3 buttons Their function is described on the display a m hs P mm uem q
5. Earphone Cone HO erica usan rice ter ee renter cre were Ter deste ses em eut belts 3l User amp Installation manual E VHF Communication Transceiver DE 3000 800100e Ioa TEI PG IPUR diu 3l 5 7 Faly Uu i M 32 Idle MOM SITS m m e o ES UE OO II a 22 Il AAA o su a rM cusa und D SIUE 32 2X FOr VOOr io A io O 22 Io diu mE o Un po 33 DO ES AM e e PI EE CO E 33 5 8 2 Connector Pin Configuration ooocccccncccnonnnnnnnnnnnnnnnnnnononononnnnnnnnnononanannnnnnnnnnonnnnaninnnss 33 SR NE A o A 34 2 54 BoA AA A 36 GI A e RU A m 37 Le AMENA SE ON tdi 37 25 9 2 Installation R comimendoatlOLi eon decian acoge on ance eut annee E 37 S10 lei AAA A 38 Ie ASA AAA UU TT 38 SNP PP A E E E E A E 39 E A E PRU 39 ILe DN copio 4 A A A T 41 2414 2 Installation Directos ota da 42 o ANNEX cer UE ET E 43 6 1 Frequency Channel schedule oocccccccccnnnoncnononononnnonononnnncnnnccnnnnnnnnnnnnnononnnnnaninnnnos 43 OPEM MCC M DICTU m 44 4 of 46 i Doc Nr User amp Installation manual o E lt VHF Communication Transceiver Revisi 1 GENERAL This manual contains information about the physical mechanical and electrical properties as well as a description for the operation and installation of the VHF airborne transceiver KRT2 1 1 Symbols WARNING Non compliance may cause personnel injury due to radiation or fire CAUTION Non compliance may cause damage or incorrect operation
6. VOX Set to VOX 3 turn off Press button AUD 4x for TXm Setto TXm or on condition Press button AUD 6x for EXT Set to EXT 00 turn off or on condition Press button AUD 10x for EXT Set to MIC Level 3 or on condition 32 of 46 Doc Nr User amp Installation manual Eo lt VHF Communication Transceiver Revision 5 0 pS EA 5 8 Wiring 5 8 1 Wire Gauges Supply lines Power GND AWG18 0 96 mm Control lines AWG22 0 38 mm All wires must be aviation certified 5 8 2 Connector Pin Configuration Batt Plus LSP Headset Microfon 1 RX PC Ext NF Intercom LSP PTT R Microfon 2 PTT L amp B D o09080e606060G98G TX PC Batt Minus GND X 33 of 46 Doc Nr o lus User amp Installation manual D a 23 E mec pu VHF Communication Transceiver MAINTENANCE GMBH Revision 5 0 pS EA 0 8 3 Wiring Diagram Microfon Left Microfon L 3 Ek PTT L 10 T Headset 14 Microfon R 6 Microfon Right E _ MMMM 0 nge uf in white Man Headset Right Intercom 12 151 Intercon 5 o I2o e9 g D a ma 1 Y 30cm E x s i Speaker x hib aje e Sennap as UIE O d ug 200888 LSP 7 Hs TT if required Ext NF 6 Aux Audio in meee 0 fet Sern TX Remote 2 green Ei b PTT Right PTT RGi Bor o i BuU MEET LE BPTT Left Batt Plus I I Jr Batt Minus rm 1 Fuse V 3A A Batt Minus Power p
7. gt 80 dB DISTORTION 350 2500Hz lt 25 at rated power 85 33dBm lt 10 at 10dB below rated power 70 33dBm 45 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 0 pe MET Softaro 5 46 of 46
8. of the transceiver INFORMATION 5 of 46 Doc Nr User amp Installation manual E DBIDADUS VHF Communication Transceiver Revision 5 0 E TERRE 1 2 Abbreviations Definition ush to Talk Transmitter activation VOX Voice operated intercom Voice level setting fort he activation of the intercom Intercom level Intercom volume level setting oquelch Squelch setting 6 of 46 OC Nr User amp Installation manual DE n RUDI VHF Communication Transceiver Revision 5 pS KRT2 amp KRT 2A 1 3 Customer Service In order to process returned units most expeditiously please fill in the form XXXXXXXXXXXXXXXXXXX to be found under AlRplus Service at www airplus24 com Suggestions which will improve this manual are very much appreciated at www airplus24 com Information concerning software updates are available under AlRplus Avionics at www airplus24 com 1 4 KRT2 Transceiver properties e VHF airborne transceiver e Frequency range 118 000 to 136 975 MHz e Channel spacing 8 33 25 kHz 2278 channel e Fast channel selection e 4 separate microphone inputs 2 x standard or 2 x dynamics e Audio input for other audio devices e Installation Standard panel cut out 57 mm e 100 user definable frequencies with up to 8 character designators Continuous transmissions will be turned off after 2 minutes Stuck mic function 7 of 46 VHF Communication Transceiver MAINTENANCE G GMBH
9. plus connection must be protected with a 4 amps slow blow fuse 5 6 1 Microphone Connection Both the L left and R right microphone input channels can either be connected to standard microphones standard signal level 1Vpp or to dynamic microphones standard signal level 5mV to 10mV For standard microphones a supply voltage of 8V at 3300 is provided Elementary Electret microphones can also be connected They have considerably lower signal levels and therefore require an 8V supply voltage The microphone input channel amplifier gain can be selected via the the MIC Setup menu 3 4 10 When dynamic microphones are used in gliders the 8V supply voltage is Switched off for power saving purposes standard microphones normally used in headsets together with dynamic microphones generally can not be used at the same time Motor gliders should have a toggle switch installed to differentiate between motor less flight with dynamic microphones and powered flight with headsets When the AUTO mode is selected in the MIC Setup menu the KRT2 automatically recognizes to which microphone type has been switched and acts accordingly 30 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Microfon 1 amp l inkeM Headset Klinke M Klinke H cr Lautsprecher Optional dynamische Mikrofone Umschaltung Dynamic Headsets f r Motorsegler Because the 8V supply volta
10. running use a headset or earphone and speak at a normal voice level to fine tune the MIC level Whenever a new MIC level was selected the dynamic bar indicator should then be at about 50 When the microphone setup menu is left the new value is stored The range of the MIC level for standard microphones is 01 to 09 19 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver KRT2 amp KRT 2A Software gt 5 00 MIC levels 10 and 11 are special settings for low microphone levels like dynamic micro phones often used in gliders 10 is used for non amplified Electret microphones with a 8 volt supply voltage 11 is for dynamic microphones only In the AUTO mode every 30 sec the left microphone impedance is measured When using an Electret microphone and a dynamic microphone is recognized internal switchover to the dynamic microphone type and vice will take place When using a dynamic microphone and an Electret microphone is recognized internal switchover to the Electret microphone type will take place Microphone type switch over always affects both microphone channels AUTO MIC leuel 85 Em 9 83 AGC a Bal xti A ag Mic dyn The present recognized Type will be indicated Mic dyn std To activate the recognition instantly leave AUTO and come back The MIC submenu is left by pressing the AUD button Additional indications Additional indications for test purposes AGC H
11. the new wiring is not causing any malfunction The standing wave ratio must be less than 3 1 38 of 46 Doc Nr User amp Installation manual E a4 E E pu li wS VHF Communication Transceiver me TENANCE GMBH Revision 5 0 pS EA A test flight is recommended to verify proper transceiver operation The following items should be checked e Check transceiver operation with a radio station at least 50 km away when at 2000ft or above e Check if there is unusual electrical interference or noise e f possible check the transceiver operation on low and high frequencies of the VHF frequency band 5 12 Starting Up Switch the unit on with the ON button The following display will appear The start display shows device type and the software number It then changes into the normal operating mode Direct Input 5 13 Accessories Suitable accessories like antennas cable sets and switches can be purchased at our online shop on www AlRplus avionics com 39 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 0 pe MET Softaro 5 40 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver 5 14 Drawings 5 14 1 Dimensions 144 0 mm 41 of 46 Doc Nr us User S Installation manual DE 3000 800100e 23 E EJ VHF Communication Transceiver M MAINTENANCE 6 GMBH KRT2 amp KRT 2A Revision 5 0 Software 55 00 5 1
12. 1 9 Further information printed on the board serves to connect all cables to its corresponding pins 36 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 EE UO KRT2 amp KRT 2A 5 9 Antenna 5 9 1 Antenna Selection e A50 Ohms impedance VHF COM antenna is required e The antenna must be approved in respect to aircraft type and installation location he antenna specifications can only be fulfilled when properly installed 5 9 2 Installation Recommendation e he manufactures instructions have to be observed e The metallic contact between airplane surface and antenna ground must be very good Non metallic airplanes must have installed a metal sheet foil or mesh of at least 80x80 cm inside the fuselage as electric counterweight e n order to avoid interference the distance between a COM an NAV antenna or between a COM and another COM antenna should be as large as possible A distance of 2 meters normally is sufficient e The antenna must vertically be installed as far as possible away from parts like propeller landing gear rudder etc that may influence propagation of the radio signals e n gliders the internal antenna provided by the airplane manufacturer is to be used The RF antenna cable may not be part of other cable sets like power supply or microphone It must not be placed together with any other COM NAV or transponder antenna cable
13. 3 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 pS EA 5 10 Microphone general The correct setting of the MIC and VOX values is of great importance for Intercom system see 3 4 3 VOX Intercom Voice Trigger Level and 3 4 10 MIC Setup The VOX intercom voice trigger level must be set to such a value that the intercom system is activated when speaking at a normal voice level into the microphone It shall not be triggered by normal cockpit noise When there is extreme cockpit noise or there are uncompensated microphones VOX can be deactivated with VOX 01 to enable manual intercom operation The manual intercom operation is activated with one or two separate parallel connected optional intercom switches These switches are not the PTT switches The intercom switches connect pin12 intercom with GND pin1 and 9 An e will be indicated if pin12 is not on GND Communication with the VOX system requires pin 12 to be connected to GND by means of one or two intercom switches The KRT2 unit transmits only when a PTT switch is pressed Cockpit noise suppression is only possible with differential microphones used in modern headsets Normal Electret microphones are not suitable 5 11 Post Installation Check A certified maintenance shop must verify the proper operation of the VHF transceiver A complete check of all airplane systems is required to certify that
14. 4 2 Installation Directions Connection Area Panel Cut out Ax O45 42 of 46 Doc Nr Il User amp Installation manual Eo A VHF Communication Transceiver Revision 5 KRT2 amp KRT 2A 6 ANNEX 6 1 Frequency Channel schedule The following table contains the operating and displayed frequencies between 118 000 and 118 100 MHz The table can be continued up to 136 975 MHz following the same principle Operating Cannel Displayed frequency Spacing channel Displayed Channel MHz kHz 8 33 25 kHz Mode 25 kHz Mode 8000 83 nsos 8059 839 nsoo mense 83 nsos C meoo 1895 M80 meoo 839 nsoo meos 83 nsos aeons 839 nso meoo 839 nsos meos 839 nso neose 83 noes meoo 839 nso meos 83 nsos meore 839 nsoo T amp i00 83 nes etc etc etc etc E 43 of 46 Doc Nr User amp Installation manual DEN O VHF Communication Transceiver Revision 5 A silicio 6 2 Technical Data GENERAL Compliance ETSO 2C169a ED 23B Class 4 Standards ED 23B Class C TSO C169a Class 6 TSO C169a Class H1 amp H2 EUROCAE ED 23B RICA DO 160E RI CA DO 178B Software Level D Height 65mm Width 65mm Depth 144mm plus rear panel plugs 60mm Temperature Ranges Operation 20 C to 55 C Storage 55 C to 85 C 35000 f DO 160E Cat S Vibration Curve M RTCA DO 160E Cat A 6G _ operation
15. 99 Press the MEMORY button a second time and EDIT will show up in the program window In the designator window a y blinking cursor will show up DUAL AUD JE lt under the most left character my Gar The turning knob selects the desired character The AUD button positions the curser one character to the right The DUAL button positions the cursor one character to the left and v simultaneously erases this character The station designator can consist of maximum 8 characters Press the FREQ button and follow the normal direct input procedure to edit the frequency Press the MEMORY button in order to go to the station designator window 14 of 46 Doc Nr User amp Installation manual DE aT ODE VHF Communication Transceiver Revision 5 0 AO iiic for editing he designator if required Pressing MEMORY again terminates editing and SAVE y will show up A SAVE is available for 20 seconds and must be acknowledged by the button No acknowledgement within 20 seconds results in the termination of the storing procedure A When the BA button was pressed SORT y will show up A SORT is available for 20 seconds and must be acknowledged by e When sorting was acknowledged with the button all 99 favourites will sorted in alphabetical order which can take several minutes During the sort procedure RUN nn is displayed in the program window with nn being the running index When the
16. ChkS Checksum error R Cmd Unknown command H Char Data error H Freq Wrong Frequency The error message disappears when a valid command or a new frequency has been input latest however after 5 seconds Remote control unit errors do not interfere with the KRI2 transceiver operation Data transmissions between the transceiver KRT2 and the remote control unit is checked once every minute A r in the upper right corner is displayed when there is no malfunction 2 of 46 Doc Nr User amp Installation manual SE E VHF Communication Transceiver PO KRT2 8 KRT 2A Software gt 5 00 5 Installation 5 1 Installation Hints The following hints should be considered for installation A certified maintenance shop should perform the wiring For the wiring diagram refer to chapter 5 7 3 5 2 Telecommunication Data The following data may be required for the radio station licence Emission Desi 6k00A3E f r 25khz channel spacing m 5kOOA3E f r 8 33kHz channel spacing 5 3 Scope of delivery KRT2 KRT2 VHF Transceiver ZUB2 3 pcs Mounting screw KRT2 for panels up to 3mm SSKRT2 Connector when no cable set was ordered PS Operation and Installation Manual 28 of 46 OC Nr D User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 IO ila 5 4 Unpacking and Inspecting the Equipment Carefully unpack the equipment Damages due to transportation m
17. F receiver Automatic Gain Control Ext External audio input voltage Mic dyn or Mic std Indicates which microphone type was selected either by the user or recognized in the AUTO mode 20 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver of be j PO KRT2 amp KRT 2A Software gt 5 00 3 5 DUAL Watch Because the communication transceiver KRI2 contains only one receiver DUAL watch is achieved by alternating between the Active and Standby frequencies The DUAL button activates and deactivates the dual watch function Deactivation also can take place by pressing either the FREQ or MEMORY buttons The frequencies to be watched should be selected prior to the DUAL watch selection scanning of frequencies is only possible when differentiating between radio noise and radio transmissions This can be achieved with the squelch system set to a value of 02 or higher There must be radio noise suppression in order to recognize reception SQ must be 02 or higher When DUAL watch is activated DUAL is displayed on the lowest line The pointer next to the DUAL display indicates the frequency on which there is reception The Active frequency always has priority so the receiver remains on the Active frequency as long as there is reception on the Active frequency When there is no reception on both the Active frequency and the Standby frequency the receiver scans both freq
18. MEMORY button is pressed during the time when SORT is displayed the sorting procedure will not start and storing and editing is terminated The transceiver then resumes the normal operating mode When the MEMORY button is pressed during the time when RUN nn is displayed the sorting procedure is terminated The favourite list then is sorted partially only and the transceiver resumes the normal operating mode Further favourites can be stored or edited by following the normal input procedure For time saving purposes it is recommended to initiate the sorting procedure after the last favourite has been saved or edited 15 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver PO KRT2 amp KRT 2A Software gt 5 00 3 4 AUD Audio Menu DUAL AUD Any action in the Audio Menu QU requires the pointer lt to be next KRT2 to the Audio menu window see ER picture When the pointer is next 1 T n mu to the Standby frequency window VOLGE lt the pointer can be repositioned by 130 See pressing the AUD button once MEMORY FREQ VOLnn is the Audio menu default display No action on any control for V more than 10 seconds will result in the VOL nn display Audio Menu items can be accessed in the following order by repeatedly pressing the AUD button VOL default SQ VOX TXm INT EXT DIM CON SIT MIC Audio menu items to right of the above list are more seldomly used than the left o
19. Revision 5 0 SS KRE ART an Doc Nr AHE us User amp Installation manual ma DU 2 CONTROL general 2 1 Control Elements Overview Field for Audio Status a Aux on v VOX on e extern Intercom Listen on two frequencies cor for memory mode Select audio mode for Area for A Volume Flag for Squoiens DUAL AUD VOX TX Transmit die qu a Puntero RX Receive a ip DIM Contrast Active marker lt Active frequency Battery status Error fielc Stand by name y lt Standby frequency Activ name ee c Window for MERE I Lc M Set Pr duenay Jr N Y z 1xx nn iix reis v AN P 100kHz 1nn xnn 10kHz 1nn nxx Modulation Memory mod nr ded a Rotation knob for frequencies Exchange Frequency standby lt gt active Audio levels Mem Freq 8 of 46 Doc Nr User amp Installation manual Eo VHF Communication Transceiver Revision 5 0 KRT2 amp KRT 2A Self locking switch 1 Scanning between the Active and DUAL Standby frequencies WATCH 2 Positioning cursor to the left when programming the station designator 1 Stepping through the audio menus AUDIO VOL SQ VOX TX INT EXT DIM CON SELECT SIT and MIC 2 Positioning cursor to the right when programming the station designator 1 Frequency and designator selection FAVOURITES from the favourites list 2 Programming of favourites frequency and designator Exchange EXCHANGE of the Active and Standby frequencies 1 Selectio
20. ge is switched off when dynamic microphones are used during glider flight the second copilot headset microphone is disabled A maximum of two microphones of same type may be connected to each microphone input channel 5 6 2 Earphone Connection several earphones of same type can be connected in parallel The total impedance should not be less than 60 Ohms 5 6 3 External Audio Input Audio alarms or even music can be made available via the external audio input When this input is not used it must be connected to ground in order to avoid noise PIN5 must be connected to Battery minus GND 31 of 46 Doc Nr User amp Installation manual SE E VHF Communication Transceiver Revision 5 pS KRATES KET 2A 5 7 Finally Audio Setup This is an overview for a correct audio set up depending on the usage 5 7 1 For gliders Press button AUD 3x for VOX Set to VOX 10 turn off Press button AUD 4x for TXm Setto TXm Press button AUD 6x for EXT Set to EXT 00 turn off Press button AUD 10x for EXT Set to MIC Level 11 5 7 2 For motor gliders For change mode motoring amp headset gliding amp dynamic microphone Press button AUD 3x for VOX Set to VOX 3 on condition at motoring Press button AUD 4x for TXm Setto TXm Press button AUD 6x for EXT Set to EXT 00 turn off or on condition Press button AUD 10x for EXT Set to MIC Level 5 select AUTO 5 7 3 F r Motor planes Press button AUD 3x for
21. he pointer is not next to the otandby Frequency window it will be repositioned with the first pressing of the FREQ button ME Exchanges the Active and Standby frequencies When the Exchange button was not pressed the Standby frequency display will return to its normal appearance after 20 seconds 3 3 2 Frequency Selection from the Favourites List By pressing and operating the turning knob a specific favourite list position can be accessed xx xx index 0 99 When frequency and station designator have been defined they will be displayed in the Standby and station designator windows The favourite list designators can be sorted in alphabetic order see 3 3 3 13 of 46 Doc Nr User amp Installation manual DE aT ODE VHF Communication Transceiver Revision 5 0 Pe O KRT2 amp KRT 2A Mi Exchanges the Active and Standby frequencies The selection procedure can be terminated with either the AUD or FREQ buttons Without pressing any of these buttons the unit will return to its normal operating mode after 20 seconds 3 3 3 Storing and Editing Favourites Any displayed Standby Frequency can be given a designator and both can be stored together as favourites in the favourite list Both the frequency and designator of a favourite can be edited First press button and by means oft he turning knob go to the desired favourite list position which may be empty or the favourite to be edited index 00
22. i AAA Software gt 5 00 Display Meaning Remark DUAL Active frequency AND DUAL function is Standby Frequency are deactivated by frequency monitored simultaneously change or by pressing the DUAL button again 03 Favourite list index When frequency and MEMORY 0 99 designator are stored at this index they are displayed 125 100 upper Active frequency EN 134 825 tower Standby frequency The pointer indicates what Arrow is positioned in the turning knob will change correspondence to the VOL SQ VOX etc button pressed Standby frequenc AUD or FREQ AT Supply voltage is low Battery low or 10 5V Battery Generator faulty Er ANT Bad antenna match ave otatus of certain Audio a AUX Input active menu functions v VOX active e external Intercom switch active UJ Er PLL Internal error no transmission Return the transceiver for maintenance Er ADC Internal error Heturn the transceiver for maintenance Er FPA Internal error unit not usable Return the transceiver for maintenance Er I2C Internal error unit not usable Return the transceiver for maintenance Er si5b3 Internal error unit not usable Return the transceiver for maintenance Er D10 Internal error reception corrupt Return the transceiver for maintenance Key Block Internal error unit not usable Return the transceiver for maintenance 11 of 46 Doc Nr lus User amp Installation manual DE 3000 800100e 4A ER 5 pru VHF C
23. ition is indicated by flag v VOXnn Range 01 10 In case of extreme cockpit noise or uncompensated microphones the VOX system can be deactivated by selecting VOX 01 When VOX is deactivated the intercom can only be used by means of intercom switches 3 4 4 TXm PTT Switch Selection Pressing the AUD button three times enables the turning knob to select certain PTT switches In addition when one of both PTT switches is disabled not Both the respective microphone channel is disabled during trans missions TXm Left Right Both 17 of 46 OC Nr D User amp Installation manual Dg mon VHF Communication Transceiver KRT2 amp KRT 2A Revision 5 0 Software gt 5 00 3 4 5 INT Intercom Volume Pressing the AUD button four times enables the turning knob to set the intercom volume INTnn Range 01 10 3 4 6 EXT External Audio Input Volume Pressing the AUD button five times enables the turning knob to set the external audio input volume External audio inputs can be audio alarms voice alarms music etc Activation occurs for settings gt 00 and will be indicated by the flag a EXTnn Range 00 10 3 4 7 DIM Display Brightness Batt voltage Pressing the AUD button six times enables the turning knob to set the display brightness Display lighting current drain at maximum brightness is only 10mA Maximum brightness is glare free even in darkness and can be used c
24. n of the frequency range FREQUENCY MHz 100kHz 10kHz 2 Toggles between frequency and designator when programming the favourites Sets all variable values in any menu TURNING 1 Volume setting of headsets and KNOB speakers MHz kHz selection of the standby frequency in 3 different ranges Favourite selection Alpha character selection when programming favourites Change of microphone settings 9 of 46 Doc Nr User amp Installation manual SE E VHF Communication Transceiver Revision 5 pS EA 2 2 Display Indication Meaning Remarks RX Reception RX Is displayed during reception with a squelch value of 02 or more TX Transmission Transmitter operates normally Te Transmitter was turned off automatically after 2 min continuous operation 125 100 Active frequency Active frequency station Displayed when frequency designator and designator is stored in the favourite list KIEL VOL Receiver volume level When AUD was pressed default after a certain time the corresponding Audio delay Menu item and setting is displayed oquelch Voice operated intercom BEEN MEN DM Dspaybihmess CON Dspaycmmat OO RENE During transmitter operation BREMEN otand Displayed when frequency by frequency station and designator is stored in designator the favourite list 10 of 46 Doc Nr User amp Installation manual E TE VHF Communication Transceiver Revis
25. ncy upper line as long asa PTT press to talk switch is pressed DUAL AUD gt m gt 9 RX 113 825 BREM TMA UnLB4 lt MEMORY A Y Y Transmission Heception TX indicates normal transmitter operation In the lower left corner of the display the carrier modulation is dynamically displayed It corresponds to the side tone which is not available on gliders when no earphones are in use In order to avoid the blocking of the frequency by unintentional long transmissions stuck microphone the transmitter is switched off after two minutes and the display changes from TX to le To resume transmission the PPT switch first must be released and then be pressed again 23 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver Revision 5 pS EA 3 7 Self test monitor There is a permanent back ground test system active The field for battery status amp error see Control Elements Overview is used to indicate warnings and in case of hardware failure different error reports The warnings are BAT low battery voltage becomes active lt 10 5V At transmission A match bad antenna match or antenna defective Also while transmission the TX flag left top can change to Te Transmission time has exceed gt 2 minutes All other reports starting with Er Indicating a major hardware failure and consequently the radio has to be returned to factory
26. nes 3 4 1 VOL Volume Turning the turning knob changes the receiver volume VOLnn Range 01 16 Die VOL setting only concerns the receiver and not the intercom system Intercom volume values are set in the INT audio menu 3 4 2 SQ Squelch Pressing the AUD button once enables the turning knob to change the squelch level values SGnn Value range 01 10 16 of 46 User amp Installation manual an VHF Communication Transceiver DE 3000 800100e The Squelch setting is depending on several factors For engine driven airplanes an initial setting of 05 08 is recommended Gliders may need a lower setting The lower the Squelch level value the higher is the input sensitivity A high sensitivity setting is susceptible to noise from other sources like ignition strobe lights etc Standard SQ level is 05 08 Higher setting may suppress strong input signals Squelch does not influence the intercom system 3 4 3 VOX Intercom Voice Trigger Level Setting Pressing the AUD button twice enables the turning knob to change the voice level which triggers the intercom The intercom voice trigger level must be set to such a value which prevents that normal cockpit noise can be heard in the earphones The intercom system shall only be activated when talking at a normal voice level into the microphone The higher the trigger level the louder the voice must be in order to trigger the intercom system VOX on cond
27. ommunication Transceiver AINTENANCE GMBH IO KRT2 amp KRT 2A Software gt 5 00 3 OPERATION 3 1 General There is a normal operating mode in which the turning knob always is connected to the volume VOL The normal operating mode can be left by pressing the AUD FREQ or MEMORY button When not in the normal mode and there is no pilot action for more than 10 seconds the unit returns to the normal mode 3 2 ON OFF Switching ON OFF switching is achieved with a self locking switch After power up the following display will show up Device name KRT2 Software Version e g V2 0 KRT2 Software Version e g V2 0 The unit then starts in the normal operating mode using and displaying the data last used 3 3 Frequency Selection There are two different frequency selection methods e Direct Input 12 of 46 I Doc Nr plus User amp Installation manual AL MM VHF Communication Transceiver MAINTENANCE TENANCE GMBH Revision 5 0 nmm dicii e Selection from the favourite list index 0 99 3 3 1 Direct Frequency Selection DUAL AUD aS j ciem pac 1143 FRANK RD VOLES T is MEMORY A The Standby Frequency is set with the tuning knob in 3 different ranges The selected range is highlighted and can be changed with the FREQ button Frequency ranges are 1xx nnn 1nn xnn 1nn nxx Press the FREQ button once or several times until the desired frequency range is highlighted When t
28. ontinuously Indication of battery voltage VDC DiMnn Range 01 10 3 4 8 CON Display Contrast Pressing the AUD button seven times enables the turning knob to set the display contrast CONnn Range 01 10 3 4 9 SIT Side tone Pressing the AUD button eight times enables the turning knob to set the side tone volume SITnn Range 01 10 18 of 46 Doc Nr lus User amp Installation manual DE n mI Las bs T29 pu VHF Communication Transceiver Revision 5 0 NN EA 3 4 10 MIC Setup Each of the two microphone inputs channels can be configured individually which enables different microphone types to be used A maximum of two microphones of same type may be connected to each microphone input channel see Microphone Connection 5 6 1 The MIC Setup is the last item of the Audio menu and can be accessed by pressing the AUD button nine times 3 DUAL AUD PEUT JOG a Mics dun MEMORY FREQ Oc y By pressing the DUAL button repeatedly L R and AUTO can be selected L R means left right microphone input channel The AUTO function is explained later By means of the turning knob the displayed microphone input channel amplifier gain MIC level 01 low gain 09 high gain can be selected individually The microphone signal level is dynamically displayed as bar and as numeric value from 0 00 to 1 00 in the line below The initial MIC level should be 05 the engine should be
29. rr o 9 Remote STX 9 to 28V Microfon 2 Sa e LSP ARIAS ta Ext NF lL id 9 4j Peto es Microfon 1 9 18 7 Headset SSH LSP front fiew female Batt Plus Ng Tyco AMP Mate N Lock F138 365 0 0927231 3 Male 0 0350720 4 Contacts female 0 0926895 3 male 0 0926897 1 Wire cross secion Siss Battery amp KRT 2 full interconnection l faira AWG20 0 61qmm n All others V2 AWG22 0 32qmm 34 of 46 VHF Communication Transceiver i Doc Nr fa E o us User amp Installation manual o oO EX MAINTENANCE INTENANCE GMBH Revision 5 0 pS EA Binder snap in Microfon 09 9748 00 03 8 09 9747 00 03 1 3 GND 2 signal brown PER 0 ds b PTT Left Headset 4 N black E bl i yellow Speaker Y LSP 7 if required Batt Plus Sh red Batt Minus a 4 Fuse i 3 A A Intercom 12 Microfon R 6 Batt Minus Power Ext NF S Microfon 2 RX Remote 13 PTT R T TX Remote 2 Intercom Ext NF PTT RG li Microfon 1 Headset eadse LSP Batt Plus KRT 2 Glider Single V2 35 of 46 User amp Installation manual an VHF Communication Transceiver DE 3000 800100e 5 8 4 Connection support In order to connect shields of all cables at a single point and to avoid ground loops an adapter board as shown is recommended F15D The adapter board is placed between the connector pin rows and soldered to the BAT plus pins 8 15 and GND pins
30. uencies 5 times per second When there is reception on the Standby frequency the receiver stays on the Standby frequency however it switches to the Active frequency every 2 seconds for 0 3 seconds When reception is detected on the Active frequency the receiver stays on the Active frequency The pointer next to the DUAL display indicates on which frequency there is reception UTER RA AL IUS RA BREM TMH VOLES lt BREM TMH Active frequency reception otandby frequency reception 21 of 46 Doc Nr User amp Installation manual Dg mI VHF Communication Transceiver JJ th IO KRT2 amp KRT 2A Software gt 5 00 otandby and Active frequencies can be exchanged when in the DUAL mode The transmitter operates on the Active frequency only Summary Select the Standby frequency to be watched additionally With the AUD button and turning knob set SQnn to 02 or higher With the DUAL button activate the DUAL watch function When there is no reception on both the Active frequency and the otandby frequency the receiver scans both frequencies 5 times per second When scanning the Active frequency always has priority Deactivate the DUAL watch function with the DUAL or FREQ or MEMORY buttons 22 of 46 i Doc Nr us User amp Installation manual o NM 23 E 23 VHF Communication Transceiver MAINTENANCE TENANCE GMBH IA ARIES KORTEA 3 6 Transmitter Operation The unit transmits on the active freque
31. um tr LI i MEMORY ZWY FREQ Set up program exit is with the MEMORY button The unit remains powered and the normal operating mode is resumed Remark B EZ Y M 3 9 1 ERASE Erasing the Favourites List When in the SET UP Menu select the ERASE submenu with the LAN MEMORY LZ Y FREQ Erasing the favourites frequency and designator starts after the LA button was pressed again This procedure may last a few minutes during which time ERASING is displayed All INFO frequencies and designators that were stored on delivery are lost and all favourite index positions 01 to 99 are available to the user 26 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver 3 9 2 Channel Spacing When in the SET UP Menu pressing the MEMORY button will change into the Channel Space submenu The desired channel spacing then can be selected and the X indicates the actual channel spacing 4 Remote Control Tandem seat airplanes can be equipped with the KRT2RC Remote Control Unit The remote control unit is connected to RS232 serial interface and enables selection of the most common settings like frequency volume squelch VOX display contrast and brightness In addition the unit has an independent memory for favourites frequency and designator Transmission error messages are displayed in the error window in the third line R_Time Time out transmission error RH
32. ust immediately be reported to the shipping company Save the shipping container and all packing material to substantiate your claim For storage or reshipment the original packing material should be used 5 5 Mounting n cooperation with the maintenance shop mounting details are specified The maintenance shop can manufacture and install all cables that may be required e Avoid installing the unit in the vicinity of heat sources Sufficient air circulation is required e here must be sufficient space for cables and connectors e Avoid sharp bends and wiring close to control cables e Cable length must be such that connectors are accessible for repair e The wiring to the transceiver must be installed such that water droplets formed by condensation will not run into the connector Remove the turning knob in order to install the transceiver o Remove the turning knob cap with an appropriate tool o Loosen the screw and remove the turning knob o Install cap correctly oriented e Installation is from the front side of the instrument panel with three 4mm screws in a 57mm panel cut out For installation details and drawings refer to chapter 5 7 29 of 46 Doc Nr User amp Installation manual Dg mon VHF Communication Transceiver KRT2 amp KRT 2A Revision 5 0 Software 55 00 5 6 Electrical Connections The 15 pin D Sub connector contains all electrical connections except the antenna The battery
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