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SM05 - Northern Airborne Technology

1. INTERFACE CARD CH400 9 REV OR 400 91 REV A INTERFACE CARD TYPE N TAC COM CONTROL HEAD NAT NTO30 TRANSCEIVER NTO30 FOX 1 F CARD BOTTOM CONNECTOR 9825P P102 DB25P RESET 1 RESET RX MUTE 2 2 RX MUTE ADV CHANGE 3 3 ADV CHANGE RADIO OK 4 RADIO RADIO INSTALLED 5 5 RADIO INSTALLED FBS 6 6 5 CAS 7 7 CAS DSBL OUT 8 3 DSBL OUT SPARE 9 5 9 5 VOL ARM 10 5 10 VOL ARM VOL SQ LOW 11 11 VOL SQ LOW 22 0 ee ee za FB2 am 33 FB2 ANTENNA SELECT 14 14 HI LO PWR GND 15 B 15 GND RES SPARE 16 16 RX PA SQ ARM 17 17 SQ ARM RES SPARE 18 18 Key STORE 19 19 STORE PTT 20 1 20 ON OFF 21 21 VOL SQ 22 E 22 voL so SQ DSBL 23 23 SQ DSBL FB3 24 24 FB3 FBI 25 25 FBI RS12 020 1 AMP REMOTE SWITCH 2101 00505 28WDC TOP CONNECTOR SUME P101 DB25S KEY 1 AN RELAY 2A 28VDC PWR gt gt 28VDC PWR RELAY 2A WPER 28VDC PWR 28VDC POWER RELAY 2B WPER 14VDC PWR RELAY 2B N O 14VDC PWR RELAY KEY 2 RELAY WIPER PWR GND RELAY N O PWR GNO RELAY N C RELAY 1B MIC RELAY N C MIC LO RELAY 18 WIPER PTT POWER GROUND RX AUDIO RX AUDIO LO HI BAND 6 MID BAND 7 SERRA LO BAND 8 PRR o END 12 SHIELD POWER 28V 14 O NA TUN NDICATOR i a TUNE IND N C
2. TAC COM CONTROL HEAD BOTTOM CONNECTOR NT SERIES INTERFACE CARD NTI36 PAS TRANSCEIVER PLUG 25 P102 0825P RESET 1 1 RESET RX MUTE 2 2 RX MUTE ADV CHANGE 3 ADV CHANGE RADIO OK 4 4 RADIO OK RADIO INSTALLED 5 5 RADIO INSTALLED 5 6 6 FB5 CAS 7 7 CAS DSBL OUT 8 8 DSBL OUT SPARE 9 9 SPARE VOL ARM 10 10 VOL ARM VOL SQ LOW 11 11 VOL SQ LOW 4 12 12 FB4 2 13 13 FB2 HI LO POWER 14 14 HI LO PWR GND 15 15 FM AM 16 16 FM AM SQ ARM 17 17 50 ARM RES SPARE 18 18 PA KEY STORE 19 19 STORE 20 20 PTT ON OFF 21 21 ON OFF VOL SQ 22 22 VOL SQ HI SQ DSBL 23 SQ DSBL FB3 24 1 1 TOP CONNECTOR NT136 PAS TRANSCEIVER 3 AMP 101 08255 Le 28VDC PWRI 1 2 28 Wi N C 3 14 0 PWR 16 14VDC PWR 14 PWR GND LT 15 pwr jJ 5 MIC HI 2 N Oi Cu AO ds 24 RX AUDIO LO Pa 25 SPKR 2 13 SHIELO N C 23 TX SW NOTES 10 DATA PTT 1 Install spore wire NE 7 DVG DATA HI 2 Use three conductor shielded wire N C 20 DVG DATA LO 3 Use 18 ga wire two 20 wires FOR 4 Receive audio is floating output IONAL 13 5V OUT SW 5 Speaker audio is bridged output DO NOT GROUND 1 2 LOAD
3. NT WR RADIOS ORTHOGRAPHIC 1 1 1 RADIO HORIZONTAL MOUNTING TRAY FOR WEIGHT REDUCED TRANSCEIVERS MOUNT TRAY WITH 1 4 SCREWS Confidential and Proprietary to NAT WEIGHT 1 Ib 4 oz 5709 TRAY ASSEMBLY ONLY WEIGHT DOES NOT INCLUDE RADIO sknat NORTHERN AIRBORNE TECHNOLOGY LTD AUG 12 93 055577205 DIM IN INCHES DESIGNED BY DESCRIPTION JAN 3 94 0 005 R WEISBECK 1 RADIO HORIZONTAL MOUNTING TRAY 0 HEN PERRA Na Drum DRAWN BY PART NUMBER DRAWING TYPE SHEET MATERIAL FINISH R W T B HS10 001 MOUNTING VIEW 1 1 MATERIAL 5952H32 APPROVED BY DRAWING NUMBER AL ALLOY 0 075 THICK FINISH POWDER COATED NAT R amp D HS10 001 922 0 HS10 001 922 0110 THIRD ANGLE PROJECTION 2 RADIO HORIZONTAL MOUNTING TRAY FOR WEIGHT REDUCED TRANSCEIVERS MOUNT TRAY WITH 10 SCREWS TOP VIEW NOTE HOLE AND SCREW LOCATIONS ON SIDE PANELS ARE APPROXIMATE DO NOT USE FOR MEASUREMENTS WEIGHT 3 Ibs 14 oz TRAY ASSEMBLY ONLY WEIGHT DOES NOT INCLUDE RADIOS sknat NORTHERN AIRBORNE TECHNOLOGY LTD AUG 12 93 O AXZ 700 o DIM IN INCHES DESIGNED BY DESCRIPTION 0 XXX 0 005 R WEISBECK 2 RADIO HORIZONTAL MOUNTING TRAY XXXX 0 0005 NEG S 0 5 DEG DRAWN BY PART NUMBER DRAWING TYPE SHEET TH
4. 2 ATTEN OUT NC Tx Sw N C DATA PTT N C DVG DATA LO COAX CENTRE N C DVG DATA HI COAX GND RANSCEIVER CONNECTOR PLUG TYPE N MALE COAX CENTRE ANTENNA CONNECTOR PLUG TYPE N MALE COAX CENTRE COAX RG58C U OR BETTER COAX GND TAC COM il HEAD NAT AM FM I F CARD DB 25P MATING NT136 PAS 1 AM FM XCVR 102 DB 25P MATING RESET RESET UE EA AAA D RA MUTE i re een Ba oaeee 2 A ee pue ee ee A IMS QD NO eee M See er a ern VOL ARM 22 VOL ARM FB3 FB3 des I HI LO PWR Ex SPARE y MUN MEER 16 47 CHAM SELECT en UA ee ee ee 20 ns RES RABE E ee ee ey Ber PUN 222 2 25 a A oo ESA MMC CC 2 ge s 39 paak pue cT EN FB2 FB2 Confidential and Proprietary to NATI NOTES REWSION NORTHERN AIRBORNE TECHNOLOGY LTD 2 INSTALL SPARE MIRES 123 AUG 93 PART NUMBER DRAWING NUMBER FILE NUMBER 4 RECEIVE AUDIO IS A FLOATING Nnjs PaS NTI136 PAS 403 1 EN REN DESCRIPTON SHEET DATE EITHER LINE pee ener EOI DRAWN BY A e Hore NAT PROD INTERCONNECT DRAW
5. DVG DATA Hi DVG DATA LO FOR OPTIONAL EQPT 1 2A MAX LOAD 13 5V OUT SW SPARE Confidential and Pro SPARE SPARE prietary to NAT Use tefzel M27500 or raychem spec44 m81044 shielded wire with raychem solder sleeves REVISION All wire should be 22ga except for power amp ground which should be 18 SPARE SPARE NORTHERN AIRBORNE TECHNOLOGY LTD ex SUITE 14 1925 KIRSCHNER RD KELOWNA B C 1 4 7 es DESCRIP TION PART NUMBER DRAWING NUMBER INTERCONNECT NT150 403 ened AA Ew DRAWN BY APPROVED 83 aset 25 JUNE 91 SCOTT MOORE 1150 0 INTERCONNECT DRAWING FOR CONNECTING A NAT TAC COM CONTROL HEAD NT SERIES INTERFACE CARD TO A NAT TAC COM NT SERIES TRANSCEIVER WITH GUARD RECEIVER INTERFACE CARD CH400 91 REV A INTERFACE CARD TYPE This Drawing applies to all NT150 050 Transceivers CONTROL HEAD BOTTOM CONNECTOR NT SERIES INTERFACE CARD NT150 050 060 TRANSCEIVER DB25P P102 DB25P RESET hil p A BET RA MUTE otee TARTA ee AOV CHANGE en S an ves AAA re ANETO ee ee EBS RAP N GUARD DISABEE Duc um rcu x c s ns A A ee ee GUARD SEL 9 9 GUARD SEL VOL ARM 5 VOL ARM VOL SQ LOW 11 I VOL SQ LOW de y TEA Eis bp ee Se RR en a j GUARD VOK P ee
6. YZ AWI3Y M3MOd N ON YZ AVT3M L NING Sc 31VAG3 NING Nid 3J VAd34 YOLOANNOO 401 NOLO3NNOO SNILVN X OGA8cd 522 YOLOANNOO d 0Oc0 cIS8 LOld LOld asa 95 95 70 440 NO 154015 A34 OS Vd XM QNnO39 Y3MOd C843 84 MOI 5 MV OA 3MVdS 100 ao SVO sg AIFNVLSNI OIOVM OIOVM 39NVHO AOV SLAW XM 13838 LO N cad 95 OS TOA 30 NO MOIS MVdS 34 OS 34 NNOY9 19373S 284 rgd MOI OS TOA WMV OA qv ds Ino 1850 09 Syo G84 Q3TIVISNI OIOVM OIQVM 3ONVHO XM 13838 CN N N N ON sr 10 OR 00 ENAMORANDO r sb OO NING Sc YOLOANNOO ONILYN 3 1 SZ cold OOL ATERCONNEST DRAWING FOR CONNECTING NAT TAC COM CONTROL EAD NT 930 AND FOXTRONICS UT SEDIES NTERFACE CARS NAT TAC COM NTO30 TRANSCEIVER AND FOXTRONICS FLX30508 ANTENNA COUPLER
7. 3 1 viv 12 0 cle jo 5 T w A RER H H D AIRFRAME 516 8 olololo e EEE CONNECTOR 18 19 21 2101 l lI TE s A amp HARNESS s N 5 2 DB25S D MIN FEMALE L T L 0 H D 5 2 LILIAIDISI5IDIDIV s RIS MIE ol E HIT P IIOJAJE el lo o st Ic T T E EB HE CONTROL CONNECTOR 22121 19118 D102 6 113 LI ITIR D Je HARNESS 5 3 TYPE DB25P D MIN MALE H W i R Confidential and Proprietary to NAT VIEW IS THE REAR OF THE HARNESS CONNECTOR NORTHERN AIRBORNE TECHNOLOGY LTD MAY 18 94 NT TRANSCEIVER CONNECTOR MAP DRAWN BY PART NUMBER DRAWING TYPE SHEET MASTERS CONNECTOR 1 1 FE APPROVED BY Due Meus NAT R amp D NTRT 405 0101 101 DESCRIPTION DATE DESIGN CHANGES JUN 25 91 2229 CHANGED EXTERNAL FUSE RATING SEP 18 03 N TOSO FOX INSTALLATION NOTES NOTES ALL WIRES SHOULD BE 22 AWG UNLESS OTHERWISE SPECIFIED ALL WIRE SHOULD IN ACCORDANCE WITH MIL W 22759 ALL SHIELDED WIRE CABLE SHOULD BE IN ACCORDANCE WITH MIL C 27500
8. INSTALL SPARE WIRE USE THREE CONDUCTOR SHIELDED WIRE USE 18GA WIRE OR TWO 20 AWG WIRES RECEIVE AUDIO IS A FLOATING OUTPUT SPEAKER AUDIO IS A BRIDGED OUTPUT DO NOT GRUOND CONNECT PIN 35 TO GROUND FOR OR CONNECT PIN 36 TO GROUND FOR NTO3OA 12 ONLY JUMPER FOR NTOSOB JUMPER B C FOR USE RG58C U SHEILDED CABLE OR BETTER AMP FOR 5 AMP FOR USE TEFZEL M27500 OR RAYCHEM SPEC44 M81044 SHIELD WIRE WITH RAYCHEM SOLDER SLEEVES gt gt DEFINITION N C O CONNECTION THE PIN IS NOT CONNECTED TO ANYTHING TERNALLY AND THEREFORE SHALL HAVE NO CONNECTION EXTERNALLY N C SPARE O CONNECTION INTERNALLY BUT A SPARE WIRE SHALL BE STALLED IN THE WIRE HARNESS RESERVED AY BE CONNECTED AND USED IN THE FUTURE THE CIRCUITRY MAY BE PRESENT OR ADDED TO ACTIVATE THE FUNCTION PIN MAY BE USED FOR TEST PURPOSES THERE 15 NO EXTERNAL CONNECTION RESERVED SPARE RESERVED BUT INSTRUCTIONS SHALL BE FOLLOWED TO ACTIVATE RSV SP THE CIRCUITRY A SPARE WIRE SHALL BE INSTALLED IN THE WIRE HARNESS CONFIDENTIAL AND PROPRIETARY TO NAT LTD m NORTHERN AIRBORNE TECHNOLOGY 17 NORTHERN AIRBORNE TECHNOLOGY 17 AIRBORNE TECHNOLOGY LTD TITLE ANTENNA CHECKED SIZE CAGE CODE PART NO 1 SHEET A NTO3O FOX p 1 2 FILE 4035 0 DWG DWG TYPE INTERCONNE
9. VHF Transceiver Manual 5 05 Rev 4 00 2 3 6 4 System Interaction Fly the aircraft and check levels and operation of all functions Display contrast dimming may have to be tailored for adequate viewing by the flight crew Ensure there is not any interaction between any transmit functions and received NAVAIDS or other receiver functions Antenna placement or cable routing may have to be changed if these problems are encountered Ensure that there is not any interaction with Tac Com control head operation and ADF performance Relocation or re routing of the interconnect cabling may be required if interference exists 2 3 6 5 Final Inspection Before leaving the aircraft Ensure that ALL THE MATING CONNECTORS ARE SECURELY FASTENED TO THE TAC COM CONTROL HEAD Also Ensure that the unit is securely fastened to the aircraft from the front panel Ensure that the Tac Com Transceivers are securely locked into the tray s and all mating connectors are securely fastened If all functions are satisfactory the aircraft maybe released for service once all required log entries are made and the required MOT FAA paperwork is completed Nov 26 2003 Page 1 8 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2 4 Installation Drawings DRAWING REV DESCRIPTION TYPE NTRT 405 0 NTO30 FOX 403 0 NTO30 FOX 403 1 030 NT136 PAS 403 NT136 PAS 403 1B NT1
10. attributes of the R T Part numbers NT150 000 W R Denotes Weight Reduced A R Defines Frequency Band Defines Options The options currently available are as follows 050 Separate 2 channel dedicated receiver module with USFS OAS channels installed NT150 only 060 Separate 2 channel dedicated receiver module with user defined guard channels Some restrictions may apply 100 Separate DF Receiver DF100 001 which will allow NT136 and NT150 transceivers to operate with NAT s TDF System EUR Transceiver modification to provide improved adjacent channel rejection for compliance with European specifications EXT Transceiver modification to allow the NT30B extended range of 33 to 50 MHz End of Section 1 0 Page 1 4 Nov 26 2003 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD Transceiver Manual 5 05 4 00 Section 2 0 Installation 2 1 Installation information in this section consists of unpacking and inspection procedures installation procedures post installation checks and installation drawings 2 2 Unpacking and Inspection a Unpack the equipment carefully and locate the warranty card Inspect the unit visually for damage due to shipping and report all such claims immediately to the carrier involved Note that each unit should have the following Warranty Card Release Certificate Installation Manual b Verify that all items are prese
11. provide a centralized location for tactical radio control of up to four transceiver systems which can be of either NAT or other manufacture Alphabetic labeling or identification of each radio channel is provided as well as a display of receive and transmit frequencies to ease pilot identification of the selected channel Intended for aircraft use these components may also be operated in vehicular applications when correctly ordered to provide the same capability for communications vans emergency site co ordination or surveillance 1 3 Design Features The Tac Com transceiver family uses advanced technology microprocessor controlled frequency synthesis and NOVRAM channel data storage to provide its powerful features The radio itself is completely modular facilitating quick repair and service Nov 26 2003 Page 1 1 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 4 00 The physical enclosures for Tac Com transceivers die cast with fully gasketed closures to provide the most rugged possible unit The design is qualified to MIL STD 810D for environmental performance Many new band splits are supported by the Tac Com family providing airborne systems for new frequencies now required by land based law enforcement agencies and public service groups These new splits can be mixed with other existing equipment via the Tac Com control head to p
12. 17 8 SPARE 9 19 SPARE on Confidential and Proprietary to NAT 21 SPARE 22 SPARE Use tefzel M27500 or spec44 m81044 NORTHERN AIRBORNE TECHNOLOGY LTD SUITE 14 1925 KIRSCHNER RD KELOWNA B C VIY 4N7 shielded wire with raychem solder sleeves DEC i DESCRIP TION PART NUMBER DRAWING NUMBE PTC INTERCONNECT NT136 PAS NT136 PAS 403 DERE a F _ ESE x All wire should be 2240 except for power amp ground which should be 18 2 APPROVED BY 25 JUNE 1991 scott moore PROL NT136 PAS AM FM TRANSCEIVER m VHF AM FM XCVR 3 AMP e INSTALLATION WITH 28V0C BUSS 4 28VDC PWR RA10 020 REMOTE me 2806 Pur us 14 PWR GND ATTENUA TOR 15 PWR GND INTERFACE CARD CH400 9 REV 400 91 REV A 52 INTERFACE CARD TYPE Use TEFZEL 27500 or RAYCHEM SPEC44 mB1044 al shielded wire with solder sleeves MIC LO All wire should be 22 except PWR which should be 18ga RX AUDIO HI RX AUDIO LO RA10 020 20W REMOTE ATTEN SPKR1 P103 DE 9S MATING 0 5 AMP KR ES SHIELD O 28v0C BUSS PWR DF AUDIO OUT BE CONNECTED GND IN 2 TO RADIO BREAKER CRD AN DF AUDIO OUT LO NOTE 6 DF RSSI OUT GND IN DF SHIELD ATTEN CONTROL VHF ANTENNA
13. 4 A Whip 292 3 C63 3 A Bent Whip 145 Blade 177 Whip Nov 26 2003 Page 1 5 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2 3 6 Post Installation Checks 2 3 6 1 Wiring Checks a With the Tac Com control head disconnected from all of its mating connectors make the following measurements on P100 SYSTEM connector 25 pin female if used i Check pin 1 and 2 for 28 VDC or 14 VDC relative to ground ii Check pins 13 14 and 15 for continuity to ground below 0 5 ohms iii Check 3 28 VDC pin 4 14 VDC or pin 5 5 VDC for proper lamp dimmer voltage Check 16 17 or 18 for continuity to ground as above lamp return DO NOT ATTACH THE TAC COM CONTROL HEAD until these conditions are met b With the Tac Com Transceiver disconnected from all of its mating connectors make the following measurements on the airframe female cable end connector i Check pin 1 and 2 for 28VDC relative to ground ii Check pins 14 and 15 for continuity to ground below 0 1 ohms iii Check pin 6 for PTT action closure to ground when keyed and pin 5 for mic connection Note that these are commonly reversed by accident and will result in transceiver keying but no modulation iv Check pins 11 and 24 for continuity to the ship s audio system as required for RX audio d ENSURE that neither 12 or 25 is connected to ground or
14. 5 05 nat TAC COM SERIES TRANSCEIVERS 030 150 INSTALLATION AND OPERATION MANUAL REV 4 00 November 26 2003 Northern Airborne Technology Ltd 1925 Kirschner Road Kelowna BC Canada V1Y 4N7 Telephone 250 763 2232 Facsimile 250 762 3374 Copyright 2003 by Northern Airborne Technology CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD SMO5 Rev 4 00 VHF Transceiver Manual Periodically NAT will release manual amendments In order to maintain the most accurate and up to date manual these amendments should be carried out immediately upon receipt and recorded on the following amendment record AMENDMENT RECORD Amendment Amend Date Date Entered Entered By Nov 26 2003 Page ii ENG FORM 820 0109 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD SMO5 Rev 4 00 VHF Transceiver Manual Table of Contents Section Title Page 1 0 Description 1 1 Introduction 1 1 1 2 Purpose of Equipment 1 1 1 3 Design Features 1 1 1 4 Specifications 1 2 1 4 1 System Specifications 1 2 1 4 2 Transmitter Specifications 1 3 1 4 3 Receiver Specifications 1 4 1 5 Unit 1 4 2 0 Installation 2 1 General 2 1 2 2 Unpacking and Inspection 2 1 2 3 Installation Procedures 2 1 2 3 1 Warnings 2 1 2 3 2 Cautions 2 2 2 3 3 Cabling and Wiring 2 2 2 3 4 Mechanical Mounting 2 3 2 3 5 Antenna Selection Guide 2 5 2 3 6 Post Installation Checks 2 6 2 4 Installat
15. 50 403 NT150 050 403 0 NT150 403 1 GEVOICE GRD 403 NT WR 927 0 HS10 001 922 0 HS20 001 922 0 HS30 001 927 0 VS10 001 922 0 VS20 001 922 0 VS30 001 922 0 VS 922 0 End of Section 2 0 Nov 26 2003 ENG FORM 800 0107 DOT 1 01 1 20 1 20 1 10 1 10 1 10 1 00 1 10 1 10 1 10 1 10 NT Transceiver Connector Map I F to NT30A B and Foxtronics Antenna Coupler N I F to NT30A B and Foxtronics Antenna Coupler I F to NT30A B and Foxtronics Antenna Coupler N I F to NT136 PAS Transceiver N I F to NT136 PAS Transceiver and Remote Atten I F to NT Series Transceiver N I F to NT150 050 Transceiver T I F to NT Series Transceiver I F to NT Series Transceiver 8 GE Voice Guard Weight Reduced NT Series Transceiver 1 Radio Horiz Mounting Tray For W R Transceiver 2 Radio Horiz Mounting Tray For W R Transceiver 3 Radio Horiz Mounting Tray For W R Transceiver 1 Radio Vert Mounting Tray For W R Transceiver 2 Radio Vert Mounting Tray For W R Transceiver 3 Radio Vert Mounting Tray For W R Transceiver Single Dual Vert Mounting Tray For W R Xcvr Connector Map Interconnect Interconnect Interconnect Interconnect Interconnect Interconnect Interconnect Interconnect Interconnect Mechanical Mechanical Mechanical Mechanical Mechanical Mechanical Mechanical Mechanical Page 1 9 CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD 22 1 8 8
16. 55 1 DVG RX AUDIO 4 N C 28 voc gt 8 Awe 1 28 PWR i ia awe 28 VOC Pur aln c E p 14 PWR GND SPARE p L is PWR CNO DUAL CONT 14 3 14 VDC PWR 16 14 PWR DUAL CONT IND 11 N C 19 SPARE Tx Sw 2 23 Tx SW DATA 110 DATA PTT DVG AUDIO 6 17 DVG DATA HI DVG AUDIO LO 5 20 DVG DATA LO RES 9 12 SPKRI RX MUTE 1 25 SPKR2 ADV CHG CLK 14 13 SHIELD FB5 19 8 RESERVED FB3 1 n 21 RESERVED PA KEY 1 20 AWG 1 4135 V OUT STORE 16 17 135 V OUT F84 18 9 RESERVED 2 ZH 11 RX AUDIO HI 24 RX AUDIO LO 5 MICH 6 EAR 3 P102 DB25P 1 RESET 2 RX MUTE 3 ADV CHANGE 4 Rao 5 RADIO INST ALERT TONE E SQ ARN 8 CG DSBL OUT CONTROL A 9 SPARE VOL SO H 18 VOL ARM 39 S 11 VOL SQ LO 12 13 FB1 14 HI LO PWR 15 GND 16 RX PA A 17 SQ ARM SPKR2 18 PA KEY 19 STORE SPKRI Bor 21 ON OFF 22 VOL SQ HI 23 SQ 0584 ION AT 24 FB4 ALERT TONE 25 FB2 REV ADV CHANGE LINE RUNS DIRECT FROM TRANSCEIVER TO CTRL HEAD voL SQ LO CUM SQ ARM CONTROL HEAD CONTROL 9 1 F PLUG DB2 1 RESET 2 RX MUTE 3 ADV CHANGE 4 RADIO OK 5 RADIO INST PA KEY 19 8 FBS RES 11 7 CAS RX MUTE 8 8 CG DSBL OUT ADV CHANGE 6 9 SPARE 85 1 18 VOL ARM SPARE 5 1 VOL SO LO FB3 3 12 FB3 12 13 FB1 UNSW A 7 14 HI LO PW
17. CT DWG NO NTO3O FOX 403 0 OSOLN ON OMG LD3NNODUALNI 9MQ 0 0v 31 XO4 O OLN 09 133H 3009 39 2 03593 VNN3LNV NM V S 93 9153 LYN OL IVILN3GOIJ3NOO ANNOYY 5 3HIN39 HOLO3NNOO VNNSLNV SOSOEX ld VNNGLNV 3H ANNOYD XVOO 9 XVOI 3jMIN3O 3jMLN3O XVOO N ddAL YOLOANNOO SJAISOSNV HL YLOOANNOO VNNALNV SOSOEX ld 1NNON 45 INAL ce 3NVdS ANNL QvO1 2 1 1403 1VNOILdO 304 318vN3 3NnL A8C 93MOd MS LNO AG 14 viva SAC VIVO SAG VIVO MS XL 9 MMdS QNV8 01 QNV8 IH Xy 80S0 X14 SOINOMLXOJ N3MOd M3dlM Bl AV T3M O1 2IN O N 81 IH OIN 8l AV 133 Vl AV 133 YIMOS O N VI AV 133 YIMOS VL AV I3M A34 90 ON 87 Av13 OCA o MJdlM
18. Confidential and Proprietary to NAT pare ness A NORTHERN AIRBORNE TECHNOLOGY LTD AUG 12 93 ox 79d to DIM IN INCHES DESIGNED BY DESCRIPTION 0 0 005 R WEISBECK 1 AND 2 RADIO MOUNTING VIEWS DRAWN BY O AN m 205 bee DRAWN BY PART NUMBER DRAWING TYPE RD ANGLE PROVESHEN MATERIAL FINISH VS10 vS20 MOUNTING VIEW 1 4 D N APPROVED BY DRAWING NUMBER FILE NUMBER NAT R amp D 5 922 0 VSN922 0110 1 a SMO5 Rev 4 00 VHF Transceiver Manual Section 3 0 Operation 3 1 General The NT Series radios can only be operated by the Tac Com Control Head All the operations of the RT are defined and manipulated by the operational features of the Control Head For details regarding Control Head and NAT RT operation see SECTION 3 0 OPERATION in TAC COM CONTROL HEAD INSTALLATION AND OPERATION or SERVICE MANUAL End of Section 3 0 Nov 26 2003 Page 3 1 ENG FORM 806 0106 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD
19. D AUG 12 93 ae 2 oxxxx 00005 NGLE 0 5 PART NUMBER DRAWING TYPE SHEET THIRD ANGLE PROJECTION MATERIAL FINISH R W T B vS20 001 MOUNTING VIEW MATERIAL 5052932 APPROVED BY DRAWING NUMBER AL ALLOY 0 075 THICK FINISH POWDER COATED NAT R amp D vS20 001 922 0 227500 OW IN INCHES SY bESRRPRON 4 0 010 DESIGNED DESCRIPTION FILE NUMBER vS20 001 922 0110 S RADIO VERTICAL MOUNTING TRAY FOR WEIGHT REDUCED TRANSCEIVERS MOUNT WITH 1 4 SCREWS 6 REQUIRED ential and Proprietary to NAT WEIGHT 6 Ibs 2 oz TRAY ASSEMBLY ONLY WEIGHT DOES NOT INCLUDE RADIOS TOLERANCES d REMSION DATE UNLESS STATED OTHERWsE wnat NORTHERN AIRBORNE TECHNOLOGY LTD 06 12 93 D X7 70 030 DIM IN INCHES DESIGNED BY DESCRIPTION 2035 10 xx 0 010 O XXX 0 005 R WEISBECK 3 RADIO VERTICAL MOUNTING TRAY JO xxxX 0 SA EPS Ne DRAWN BY PART NUMBER DRAWING TYPE SHEET THIRD ANGLE PROJECTION MATERIAL FINISH RW T B 530 001 MOUNTING VIEW 1 4 MATERIAL 5052H32 APPROVED BY DRAWING NUMBER AL ALLOY 0 075 THICK FINISH POWDER COATED NAT R amp D 530 0014922 0 FILE NUMBER 530 0014922 0110 SINGLE DUAL VERTICAL MOUNTING FOR WEIGHT REDUCED TRANSCEIVER SINGLE TOTAL DEPTH INCLUDING PROTRUSIONS 15 6 in
20. DATA PTT 0 MOUNT NEAR DVG DATA FLX3050B 527 CONTROL HEAD BVE LO TRANSCEIVER CONNECTOR ee 22209 CENTRE C 1 2A MAX LOAD Y SPARE COAX GND VHF LOW BAND ANTENNA SPARE FLX30508 ANTENNA CONNECTOR Se 22 SPARE Saba COAX GND NOTES m PLUG TYPE N Use three conductor shieided wire GND Use 1840 wire or two 2040 wires 2 3 4 Receive audio is floating output Confidential and Propri rietary to N 5 Speoker audio is a bridged output do not ground y 6 7 8 HN t pi t d for NTO3QB gt Connect pin 32 to ground for NTO3gR or RS12 ONLY Jumper for NTO3OB Jumper B C for Use RG58C U sheilded cable or better NORTHERN AIRBORNE TECHNOLOGY LTD SUITE 14 1925 KIRSCHNER RD KELOWNA B C VIY 4N7 DESCRIPTION PART NUMBER DRAWING NUMBE ANTENNA INTERCONNECT NT30 FOX NTO30 FOX 403A Use Tefzei M27500 or Raychem 44 181044 shielded wire with roychem solder sleeves a All wire should be 22ga except for power amp ground which should be 18ga DRAWN BY FEB 07 91 SAWCHUK NA ROU 119 INTERCONNECT DRAWING FOR CONNECTING THE Be NAT TAC COM CONTROL HEAD NT SERIES INTERFACE CARD A NAT TAC COM NT PAS SERIES TRANSCEIVER INTERFACE CARD CH400 9 REV A 400 91 REV INTERFACE CARD TYPE N
21. ING FOR CONNECTING THE NAT TAC COM CONTROL HEAD NT SERIES INTERFACE CARD TO A NAT TAC COM NT SERIES TRANSCEIVER INTERFACE CARD CH400 9 REV A OR CH400 91 REV A INTERFACE CARD TYPE N TAC COM CONTROL HEAD NT SERIES INTERFACE CARD NAT TRANSCEIVER DB 25P P102 DB25P Pss ee ee 0 A ea ADV CHANGE 3 3 ADV CHANGE RADIO OK 4 4 RADIO OK RADIO INSTALLED 5 5 RADIO INSTALLED dae T MM Fon MEE cod irs O A P SI CD DSBL OUT 8 8 CD DSBL OUT 52 45 UR AGIR LAREDO MM VOL ARM 10 10 VOL ARM 22 rer en M gt AA ne y s 0 2 Us I Qs In A EEE an has ee nee RES SPARE 18 18 PA KEY AU f rag O CAM ipu ee E 4 dM 2 AE Mee OR ee een PSBL nz cp aD MM 2 me SEIEN We 1 25 25 1 ER TOP CONNECTOR NAT TRANSCEIVER 3 AMP 101 08255 ILL 28VDC PWRI 28VDC PWR 28VDC PWR N C 3 14VDC PWR N C 16 14VDC PWR 9 14 PWR GND 15 PWR GND 5 MIC HI 18 MIC LO 6 PTT 11 RX AUDIO HI 24 RX AUDIO LO 12 SPKR 1 25 SPKR 2 13 SHIELD SW NOTES DATA PTT 1 Install spore wires 2 Use three conductor shielded wire 3 Use 18 ga wire or two 20 go wires 4 Receive audio is a floating output 5 Speaker audio is a bridged output DO NOT GROUND
22. IRD ANGLE PROJECTION MATERIAL FINISH R W T B HS20 001 MOUNTING VIEW 1 1 MATERIAL 5052H32 APPROVED BY DRAWING NUMBER FILE NUMBER AL ALLOY 0 075 THICK FINISH POWDER COATED NAT R amp D HS20 001 922 0 520 001 922 0110 UJ 3 RADIO HORIZONTAL MOUNTING FOR WEIGHT REDUCED TRANSCEIVERS MOUNT WITH 10 SCREWS E VIEW 8 9 60 10 60 a pur Confidential and Proprietary to NAT NOTE HOLE AND SCREW LOCATIONS ON SIDE PANEL ARE APPROXIMATE WEIGHT 5 Ibs 1302 TRAY ASSEMBLY ONLY WEIGHT DOES NOT INCLUDE RADIOS UNLESS matt NORTHERN AIRBORNE TECHNOLOGY LTD DEC 15 93 24709000 DIM IN INCHES DESIGNED BY DESCRIPTION 0 XXX 0 005 VEITCH 3 RADIO HORIZONTAL MOUNTING TRAY Tulle ae EE le x De DRAWN BY PART NUMBER DRAWING TYPE SHEET THIRD ANGLE PROJECTION ion MATERIAL FINISH T BLACKSTOCK HS30 001 ORTHOGRAPHIC 1 1 MATERIAL 5052H32 APPROVED BY DRAWING NUMBER FILE NUMBER AL ALLOY 0 075 THICK FINISH POWDER COATED NATI HS30 001 927 0 HS30 001 927 0100 2 RADIO VERTICAL MOUNTING TRAY FOR WEIGHT REDUCED TRANSCEIVERS MOUNT WITH 1 4 SCREWS 6 REQ D WEIGHT 4 Ibs 1 oz TRAY ASSEMBLY ONLY WEIGHT DOES NOT INCLUDE RADIOS SE ES nat NORTHERN AIRBORNE TECHNOLOGY LT
23. R DUAL CONT IND 9 15 GND DUAL CONT 18 16 RES SPARE PLUG 13 17 SQ ARM TTL Tx 14 18 RES SPARE STORE 4 19 STORE TTL TX CLK15 28 PTT CLK 16 21 ON OFF 22 VOL SQ Ht 23 SQ DSBL 24 FB4 25 FB2 Confidential and Proprietary to NAT TE Er ential Froprietary to 1925 KIRSCHNER RD KELOWNA B C 3 SEPT 9 pART NUMBER DRAWING NUMBER NUMBER GUARD RAM WLL LOSE KEY WHEN POWER TO PIN 4 7 UNSW A IS INTERRUPTED pi 32 PART NUMBER DRAWING NUMBER LE NUMBER U 7 UNSW A 21 DEC 92 Br A MAY ALSO BE CONNECTED TO AN ALTERNATE 14 VDC SUPPLY en a GEVOICE GRD 483 GEVOICE GRD 4038 Z ALERT TONE iS NOT AVAILABLE ON 136 AM FM XCVR AND o DESCRIPTION SHEET NTI50 050 GUARD RX MODEL TRANSCEIVERS INSTEAD CONNECT mam vori 17 TRANSCEIVER 102 16 18 TO CONTROL HEAD t F CARD PINS 16 18 AS PER REGULAR INTERCONNECT poe MORET SCOTT MOORE MZ WEIGHT REDUCED NT SERIES TRANSCEIVER FRONT VIEW SIDE VIEW WEIGHT NT30 SERIES 8ibs 8 2 38759 NT136 806 VHF UHF 8 5 oz 38009 Confidential and Proprietary to NAT TET 7 266 1253 BFS 77070 OWE WINCHES e ss DRAWNO TE SHEET APPROVED BY DRAWING NUMBER NAT R amp D NTZWR 927 0110 D P ti 12 RQ ANGLE PROJE MATERIAL FINISH
24. RAWING TYPE 5 NT150 050 INTERCONNECT APPROVED BY DRAWING NUMBER NAT R amp D NT150 050 403 0 NT150 050 403 0112 0 REVISION lt SHEET 1 1 E INTERCONNECT DRAWING FOR CONNECTING THE NAT TAC COM CONTROL HEAD NT SERIES I F CARD WITH TRANSCRYPT TO A NAT TAC COM NT SERIES TRANSCEIVER INTERFACE CARD 400 911 INTERFACE CARD TYPE T eue eed TAC COM CONTROL HEAD BOTTOM CONNECTOR NT SERIES INTERFACE CARD NAT TRANSCEIVER D8 25P P102 DB25P RESET 1 1 RESET RX MUTE i 2 2 RX MUTE ADV CHANGE 3 ADV CHANGE RADIO OK 4 4 RADIO OK RADIO INSTALLED 5 5 RADIO INSTALLED FB5 6 6 FBS 7 RESERVED CD OSBL OUT 8 8 CD DSBL OUT 9 RESERVED VOL ARM 10 5 231 10 VOL ARM ES FB4 12 12 FB4 582 PME pM EE er wir De AG Hi LO PWR 14 Bd 14 PWR 6 16 RESERVED SQ ARM 17 427 SQ ARM xus EN eee 20 ss 20 PTT ae AA 22225 50 PS8 AAA y os FB3 24 24 FB3 FB1 25 25 1 TOP CONNECTOR NAT TRANSCEIVER 3 AMP P101 0825 28VDC PWR m 1 28VDC PWR 2 28VDC PWR N C 3 14VDC PWR 14 PWR MIC HI OUT ipe gt voc MIC HI IN 14 MIC LO 15 PWR GND MIC HI MIC LO PTT RX AUDIO HI 13 5 IN 1 2 AS 4 5 shielded wire w
25. allow the unit to be easily withdrawn for removal Ensure an adequate service loop is allowed in the routing of the cable Do NOT bundle the RF coax cable with the channeling wires Ground the transceiver with as short a ground wire as practical and ensure the ground connection is clean and of good quality 2 3 4 3 Control Head Do not mount the Tac Com control head adjacent to or bundle the cables with a panel mounted ADF or faint birdies RF noise may result the ADF from the control head s computer Ensure that the unit is securely mounted before any flight is attempted Note that the case is grounded but it should be attached to a grounded surface for RFI shielding A pin is provided for grounding the case and this must be connected via ITS OWN WIRE to a suitable ground not jumpered to the power ground wire connection Nov 26 2003 Page 1 3 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2344 Antennas Correct antenna placement and mounting is critical achieve the best possible performance In general keep all antennas as widely separated as possible and clear of any large airframe obstructions Avoid any placement that puts ANTENNAS OF LIKE FREQUENCIES CLOSE TOGETHER Especially troublesome will be AM COMM and VHF FM antennas in close proximity Bottom mounted antennas will perform best in flight but poorest on the ground durin
26. en A Ut ares ERS LE oo MET QNI pad STORE 19 STORE i 2 T 58 xs pd x A en oO a AS ii i SLR EEES Ore ae ee 1 25 FB1 UNE TOP CONNECTOR NAT TRANSCEIVER 3 AMP Q 101 08255 EN 28VDC PWRI 1 28 0 2 28V0C PWR 3 14VDC PWR 16 14VDC PWR 14 PWR GND L 15 pwr GND Qr de 24 RX AUDIO LO Uno cen 25 SPKR 2 13 SHIELD TO OPTIONAL COMMUNICATIONS _ O CONTROLLER CC450 OR 250 8 MAIN SQ DSBL OUT N C 23 TX SW 10 DATA PTT pad 7 DATA HI 2 Use three conductor shielded wire 20 DVG DATA LO 3 Use 18 go wire or two 20 go wires 4 Receive audio is a floating output 13 5v OUT sw S Speaker audio is a bridged output DO NOT GROUND 9 SPARE 6 Note only XCVRS with MOD 10 will hove 19 SPARE MAIN SQ DSBL OUT signal installed 21 SPARE 22 SPARE Use Tefzel M27500 or Raychem spec44 m81044 shielded wire with raychem solder sleeves All wire should be 2240 except for power Confidential and Proprietary to NAT amp ground which should be 1890 DATE NORTHERN AIRBORNE TECHNOLOGY LTD UNE 25 91 DESIGNED BY DESCRIPTION SCOTT MOORE TAC COM CONTROL HEAD NT150 050 TRANSCEIVER E FEB 18 94 DRAWN BY PART NUMBER D
27. g testing UHF antennas will be severely degraded by masking effects of the fuselage stabilizers and generally give best performance when bottom mounted Any blade or whip antenna must be surrounded by a ground plane surface metallic grounded material equal in radius to the height of the antenna as an absolute minimum Poor grounding will result in severe reflected power and high levels of RFI throughout the airframe Keep cable bends to a minimum at the antenna and use 90 degree elbow adapters if sharp bends are required Avoid antenna locations that will become fouled with oil water fuel or dirt as this will degrade performance Roof mounts in close proximity to rotor blades permissible without severe degradation but should not be adjacent to AM COMM antennas or cross talk may result Use caution with cable routing and length on VHF systems Sharp kinks bends or coiled cable may adversely affect performance Cable runs should be as short as possible for good performance Use only high quality mil rated cable RG58C U microwave rated cable RG214 U or cable with a teflon dielectric for longer runs Type N fittings should be used throughout if possible to prevent degradation over time and to provide the best impedance match Nov 26 2003 Page 1 4 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2 3 5 Antenna Selecti
28. immediate failure of the radio will result This optional speaker line is a bridge output and must be floating above the airframe ground e Ring out the channeling lines to the control head connector and check for shorts on all shielded cables Note that a quick check of these lines will save many wasted hours later and possible control head and R T damage f Check the RF connector for continuity to the antenna and open circuit to ground from the center conductor Nov 26 2003 Page 1 6 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 NEVER make a HI POT test on this RF coax cable unless the transceiver is KNOWN TO DISCONNECTED Failure to follow this information will result in a damaged transceiver which is not covered by warranty DO NOT ATTACH THE TRANSCEIVER until the above conditions are met 2 3 6 2 Performance Checks a Power up the ship s system with the Tac Com control head and R Ts installed and turn on all of the radios and other accessories required for this system b Check for correct radio operation and channeling both receive and transmit and Ensure that all status indications are correct TX and SQ Do not proceed until the radios are operating correctly You may have to set the DISPLAY CONTRAST pot on the LCD controls or use the CONTRAST BRIGHTNESS screen reached after the last radio with the RADIO butto
29. ion Drawings 2 9 3 0 Operation 3 1 General 3 1 Nov 26 2003 Page iii ENG FORM 820 0109 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD SMO5 Rev 4 00 VHF Transceiver Manual Section 1 0 Description 1 1 Introduction Tac Com series transceivers have been optimized for full feature operation within the total Tac Com system architecture and provide agile operation over a wide range of RF frequencies Using a combination of serial and parallel tuning these transceivers provide a simple interconnect with powerful channeling ability The design of the transceivers also supports full encryption capability to DES 1027 formats without modification Subaudible CTCSS tone coded squelch and DPL coding are also fully supported Various levels of scanning are supported in these fast lock synthesized radios such as PRIORITY or SCAN list formats These modes can emulate multiple guard receiver operation under full control of the operator and can be altered in the system software control head The basic radio stores 32 frequencies within 2 pages of non volatile memory any or all of which can be altered by the Tac Com system control head as needed by the operator 1 2 Purpose of Equipment These transceivers are designed to meet the difficult airborne requirements of law enforcement and public service public safety groups for tactical FM communication systems The Tac Com series of radio control heads
30. ith raychem solder sleeves All wire should be 22ga except for power amp ground which should be 18ga 123 TX SW NOTES 10 DATA PTT Install spare wires P NC 7 DVG DATA Use three conductor shielded wire N C 20 DVG DATA LO Use 18 ga wire or two 20 go wires Receive oudio is a floating output amp Sane Speaker audio is a bridged output DO NOT GROUND 9 SPARE A n 19 SPARE Confidential and Proprietary to 21 SPARE Use tefzel M27500 or raychem spec44 m81044 SPARE a NORTHERN AIRBORNE TECHNOLOGY LTD 1925 KIRSCHNER RD KELOWNA PART NUMBER DRAWING NUMBER FILE NUMBER NT150 000 NT150N403 1 NENNEN DESCRIPTION SHEET RX AUDIO LO SPKR 1 SPKR 2 SHIELO 13 5V OUT SW 13 5V OUT SW NT150N403 1 SCOTT MOORE L L O INTERCONNECT Tori 24 JUNE 93 DESIGNED BY o BY DRAWN BY APPROVED BY mm SE vCICE GUARD INTERCONNECT DRAWING FOR CONNECTING GE VOICE GUARO TO 1 I m _ lt E 2600 5W NT SERIES TRANSCEIVER AND TAC COM CONTROL HEAD NT SERIES TRANSCEIVER INTERFACE i SERIES SCEIVER INTERFACE P101 D82
31. le 100 RX 20 TX CTCSS Tones 38 From 67 0 Hz to 250 3 Hz EIA Std DPL Codes Digital Private Line 83 023 to 754 Encryption Capability DES per FS1027 GE Voice Guard Transcrypt Shock ElA and MIL STD 810D Dimensions 2 7 x 8 0 x 14 0 W R Version HxWxD 2 7 x 9 5 x 13 3 Weight less accessories ma W R Version 5 Ibs Alternate 5 0 12 5 kHz spacing available on NT 150 when used with Tac Com controls On NT136 PAS Tac Com provides 5 0 6 25 kHz spacing for European applications 1 4 2 Transmitter Specifications Conducted Spurious 80 dB 70 dB NT806 Modulation 4 5 kHz Max Distortion Less than 2 1000 Hz Less than 5 300 to 3000 Hz Deviation Symmetry 0 3 kHz maximum Microphone Load Impedance 600 ohms RF Output Impedance 50 ohms Type N connector Nov 26 2003 Page 1 3 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 1 4 3 Receiver Specifications Sensitivity 0 35 uV EIA 12 dB SINAD typical Normally set to 0 6 uV Selectivity EIA 2 signal method 80 dB 25kHz channels Spurious Response 85 dB Audio Output Phones Nominal 600 ohm line output 100 mW minimum Transformer coupled output Speaker Nominal 4 W into 8 ohms Bridge output DO NOT GROUND 1 5 Unit Nomenclature Tac Com transceivers are identified by two groups of numbers The first defines the frequency band and the second defines any optional
32. munication intensive application BAD CABLE ROUTING AND SHIELDING MAY DRASTICALLY COMPROMISE OVER ALL SYSTEM PERFORMANCE SYMPTOMS WILL BE SPURIOUS SQUELCH OPENING RFI AND GARBLED RECEPTION RF cables must be neatly terminated solder or crimp and tested FOR SHORTS NOT WHILE CONNECTED TO THE RADIO PRIOR TO SYSTEM CHECK OUT Avoid sharp bends in the coax cables min 3 radius to prevent severe reflections especially at UHF frequencies Nov 26 2003 Page 1 2 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2 3 4 Mechanical Mounting 2 3 4 1 Tray mounting Transceiver mounting is accomplished via a flat rack assembly which must be securely attached to existing structure with AN3 or larger bolts with suitable locking hardware and washers Note that the non weight reduced radio is secured to the tray using a TORX or six sided spline screw to reduce tampering with equipment Shock mounting of the tray is not required except in extraordinary circumstances where airframe vibration is very severe Ensure that the unit is securely mounted before any flight is attempted Do not mount the transceiver in the path of any hot air exhaust dripping condensation or oil leak Try to mount the transceiver close to the intended antenna location as long cable runs will dramatically increase losses to the antenna 2 3 4 2 Cabling Installation cabling MUST
33. n to obtain a suitable display Check each antenna feedline the R T with a through line wattmeter and suitable frequency elements to Ensure correct antenna matching Reflected power in excess of 25 represents a serious problem and should be investigated carefully or serious RFI and system interference as well as possible radio damage may result Check that forward power is to specifications over the required band as specified for the radio in use 2 3 6 3 Diagnostic Hints Ensure all antenna mounts are secure cleanly grounded and well terminated Avoid sharp cable bends in the coax Never mount any antenna on a composite surface unless a well grounded and adequately sized ground plane has been provided Unusual buzzes hums or other background audio are symptomatic of multiple grounds or noisy external systems such as blowers or pumps sharing wiring with the audio system connections Failure to key or correctly modulate a transmitter is often caused by forgetting to connect all required grounds to the radio or external audio system A special caution is that no ground should be taken from the front panel or similar location that shares a ground return with a turn and bank horizon or other motor driven instrument If this caution is not observed the sound of the motor may be heard mixed in with receiver audio Nov 26 2003 Page 1 7 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD
34. nt before proceeding and report any shortage immediately to your supplier Complete the warranty card information and send it to NAT when the installation is complete If you fail to complete the warranty card the warranty will be activated on the date of shipment from NAT 2 Installation Pr r 2 3 1 Warnings IMPORTANT Do not bundle any lines from this unit with transmitter coax lines Do not bundle any logic audio or DC power lines from this unit with 400 Hz synchro wiring or AC power lines Do not position this unit next to any device with a strong alternating magnetic field such as an inverter or significant interference to operation will result In all installations use shielded cable exactly as shown and ground as indicated Significant problems may result from not following these guidelines Nov 26 2003 Page 1 1 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD VHF Transceiver Manual 5 05 Rev 4 00 2 3 2 Cautions All audio installations can be severely degraded by incorrect wiring and shielding and may result in much higher cross talk hum and ground loop interference This should be considered when audio wiring to and from the radio installation is performed 2 3 3 Cabling and Wiring For shielded wire applications use Tefzel M27500 or Raychem spec 44 81044 shielded wire with Raychem D140 or equivalent solder sleeves for shielded terminations to make the most com
35. on Guide This guide shows some industry standard antennas which can be used with NAT NT Series Transceivers and gives a range of mechanical choices where possible 2 3 5 1 VHF Lo Band Antennas 30 50 MHz Range Transceiver Tryvec Avant Comant Foxtronics Type 224 15 to 6dBi Bent blade AV402 10 to 4dBi Whip AV404 3dBi avg Whip 430 8 to 4dBi Whip AV504 3dBi avg Bent whip 233 Whip FLX 3050B Active Foxtronics will tune all channels with relatively losses external coupler Foxtronics is required along with an interface adapter from NAT RS12 020 Antennas with losses of over 6dBi dB with respect to isotropic source will dramatically reduce transmit power and receive sensitivity Special order fixed tuned narrow bandwidth single frequency whips are available from Comant Spiral wound aircraft CB whip antennas Antenna Specialist etc can also be cut down in length to produce resonant antennas with very low losses for frequencies in the higher 30 50 MHz range Note that these will be very narrow in bandwidth and must be tuned by cutting very carefully Substantial ground plane area is required in this band split and poor antenna locations may produce very large mismatch losses at different frequencies 2 3 5 2 VHF Hi Band Antennas 136 174 MHz Range Transceiver Comant D amp M Type NT136 63 4 Whip 177 1 Whip NT150 292 4 C63
36. pact and easy to terminate interconnect Tailor the examples of installation diagrams in Section 2 4 for your own requirements Allow 3 inches from the end of the wire to the shield termination to allow the hood to be easily installed Note the hood is a clamshell type and is installed after the wiring is complete All channeling wiring should be 22 ga except power and ground connections which must be 20 ga or larger as indicated on the installation drawings Ensure that the ground connection is clean and well secured Power to this system must be supplied from a separate breaker or fuse and not bundled to any other source to prevent inadvertent system failure A 3A slow blow fuse or breaker is suggested for all models except the which should use a 5A slow blow fuse or breaker 28 VDC Source Coax cable should be RG 58C U or similar mil grade full coverage coax cable At UHF frequencies use of double shielded RG 223 U or large diameter RG 213 U may be desired to reduce cable loss Teflon dielectric cable is encouraged above VHF frequencies or where cable runs exceed 8 feet Note that at UHF frequencies cable losses with even short runs may cut the ERP to less than 50 of spec To prevent RF interference between similar systems it is recommended that VHF COMM and VHF FM coax runs be widely separated or be made using triaxial cable with the outer shield bonded to the airframe at one end only transceiver end In com
37. roduce full function systems with minimum cost The thermal management of the radio is outstanding resulting in minimal case temperature rise regardless of operational cycles This is a significant departure from many existing systems which are at design limits even with low duty cycles A wide range energy conversion power supply is used in the transceivers for 28VDC operation which significantly reduces both current consumption from the aircraft bus and waste heat generation All transceivers have the same mounting footprint RF connector and plug compatible interconnect for ease of installation Unit covers have integral screws anti tamper and hardware for ease of bench servicing no more lost screws Mating logic interface connectors use gold contacts and the Mil spec type N RF connector is tarnish resistant for improved performance in humid environments 1 4 Specifications 1 4 1 System Specifications Frequency range NT30A 29 41 995 MHz NT30B 34 49 995 MHz NT136 138 155 995 MHZ NT150 148 173 995 MHz Input Power Nominal 28 VDC Current Consumption RX squelched 0 4 0 7 A typ TX 2 0 A typ Frequency Stability 0 0005 Channel Spacing 5 0 kHZ Page 1 2 Nov 26 2003 ENG FORM 800 0107 DOT CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD SMO5 Rev 4 00 VHF Transceiver Manual Temperature Range 30 C to 60 C Humidity to 90 non condensing 60 C Altitude 16 500 in unpressurized area Duty Cyc

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