DEPARTMENT OF THE ARMY TECHNICAL BULLETIN RADIO INSTALLATION PROCEDURES FOR THE HIGH MOBILITY, MULTIPURPOSE WHEELED VEHICLES (HMMWV)

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1 TB DEPARTMENT OF THE ARMY TECHNICAL BULLETIN RADIO INSTALLATION PROCEDURES FOR THE HIGH MOBILITY, MULTIPURPOSE WHEELED VEHICLES (HMMWV) TRUCK, UTILITY, CARGO, TROOP CARRIER -/4 TON 4x4, W/E, M998 TRUCK, UTILITY, CARGO, TROOP CARRIER -/4 TON 4x4, W/E, W/W, M038 TRUCK, UTILITY, ARMORED, l-/4 TON 4x4, W/E, M05 TRUCK, UTILITY, ARMAMENT CARRIER, ARMORED, -/4 TON 4x4, W/E, W/W, M06 This publication is required for official use or for administrative or operational purposes only. Distribution is limited to US Government Agencies. Other requests for this document must be referred to Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-ME-P, Fort Monmouth, NJ HEADQUARTERS, DEPARTMENT OF THE ARMY, WASHINGTON, DC 5 APRIL 986

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3 TB C Change No. HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC, 5 April 988 TECHNICAL BULLETIN RADIO INSTALLATION PROCEDURES FOR THE HIGH MOBILITY, MULTIPURPOSE WHEELED VEHICLES (HMMWV) TRUCK UTILITY, CARGO, TROOP CARRIER /4 TON 4X4, W/E, M998 TRUCK UTILITY, CARGO, TROOP CARRIER /4 TON 4X4, W/E, W/W M083 TRUCK UTILITY, ARMORED, /4 TON 4X4, W/E M05 TRUCK UTILITY, ARMAMENT CARRIER, ARMORED, /4 TON, 4X4 W/E, W/W M06 TB , 5 April 986, is changed as follows:. Remove old pages and insert new pages as indicated below. New or changed material is indicated by a vertical bar in the margin of the page. Added or revised illustrations are indicated by a vertical bar adjacent to the identification number. Remove pages Insert pages -/( - blank) -/( - blank) -3 and -4-3 and -4 - through -4 - through -4-3 and -4-3 and -4-37/(-38 blank) -37 through -43/(-44 blank). File this change sheet in front of the publication for referencse purposes. This publication is required for official use or for administrative or operational purposes only. Distribution is limited to US Government Agencies. Other requests for this document must be referred to Commander, US Army Communications-Electronics Commandant Fort Monmouth, ATTN: AMSEL-ME-P, Fort Monmouth, NJ DESTRUCTION NOTICE- Destroy by an method that will prevent disclosure of contents or reconstruction of the document.

4 By Order of the Secretary of the Army: Official: CARL E. VUONO General, United States Army Chief of Staff R.L. DILWORTH Brigadier General, United States Army The Adjutant General DISTRIBUTION : To be distributed in accordance with DA Form -5 literature requirements for AN/GRC-06, AN/GRC-06A, AN/VRC-, -43 through -49, AN/VRC-53, -64, GRC-5, -60 and TSEC/KY-57.

5 TB TECHNICAL BULLETIN ) HEADQUARTERS ) DEPARTMENT OF THE ARMY No ) Washington, DC, 5 April 986 RADIO INSTALLATION PROCEDURES FOR THE HIGH MOBILITY, MULTIPURPOSE WHEELED VEHICLES (HMMWV) TRUCK UTILITY, CARGO, TROOP CARRIER /4 TON 4X4, W/E, M998 TRUCK UTILITY, CARGO, TROOP CARRIER /4 TON 4X4, W/E, W/W M038 TRUCK UTILITY, ARMORED, /4 TON 4x4, W/E M05 TRUCK UTILITY, ARMAMENT CARRIER, ARMORED, /4 TON, 4X4 W/E, W/W M06 REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter or DA Form 08 (Recommended Changes to Publications and Blank Forms) direct to: Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-ME-MP, Fort Monmouth, New Jersey Chapter. Chapter. Para INTRODUCTION Scope General Information References Maintenance Forms and Records INSTALLATION Recoverability and Requisitioning Drawing Package Numbers Tools Required Installation Procedures Page Change -/(- blank)

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7 TB Chapter. INTRODUCTION - SCOPE a. This technical bulletin provides information and drawing packages for the transfer and installation of the following radio sets and COMSEC Vinson equipment. RADIO AN/VRC- AN/VRC-43 AN/VRC-44 AN/VRC-46 AN/VRC-47 AN/VRC-48 AN/VRC-49 AN/VRC-64 AN/GRC-l06 AN/GRC-l06A AN/GRC-60 TSEC/KY-57 NSN COMSEC Vinson CAUTION The AN/GRC-06, -06A require optional 00 AMP alternator, NSN b. The radio sets and COMSEC Vinson equipment will be removed from the following trucks. () Truck, Utility /4 ton 4x4 M5 () Truck, Cargo /4 ton 6x6 M56 c. The radio sets and COMSEC Vinson equipments shall be installed into the following High Mobility, Multipurpose Wheeled Vehicles (HMMWVS). () Truck Utility, Cargo, Troop Carrier /4 Ton 4X4, W/E, M998 (Fig. l-l) () Truck Utility, Cargo, Troop Carrier /4 Ton 4X4, W/E, W/W M038 (Fig. -) (3) Truck Utility, Armored, /4 Ton 4X4, W/E M05 {Fig. -3) (4) Truck Utility, Armament Carrier, Armored, /4 Ton, 4X4 W/E, W/W M06 (Fig. -4) d. The installation information contained in this Technical Bulletin is the official authorization to perform the transfer and installation at the Intermediate Direct Support Maintenance Level. Change -3

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12 TB NOTES. This Technical Bulletin IS NOT an authorization for requisition or turn-in of vehicles.. This Technical Bulletin DOES NOT establish quantity or types of vehicles assigned to using units. 3. This Technical Bulletin IS NOT an authorization for requisition or turn-in of radio sets or COMSEC Vinson equipment. 4. This Technical Bulletin DOES NOT establish quantity or types of radio sets or COMSEC Vinson equipment assigned to using units. e. The identifying feature of the HMMWV radio installation is the antenna mounting bracket located at the rear roadside and rear curbside of the vehicle, the radio shelf located in the front center between the driver and front seat passenger, and the radio shelf on the rear roadside wheelwell. - GENERAL INFORMATION a. The radio set becomes operable when all the components are installed in the HMMWV and the correct power is applied. b. After installation, the radio set becomes part of the vehicle unit the vehicle is turned in by the using unit. The radio set and components used with the radio set (property book hand receipt items) shali be removed prior to vehicle turn-in. Refer to SB -3. c. When various components of vehicular radio sets are transferred and installed in the HMMWVS for specific applications, unused components may be generated. These excess components will be processed in accordance with Chapter 7, AR REFERENCES a. DA PAM 30- (Microfiche), Consolidated Index of Army Publications and Blank Forms* b. AR 75-50, Requisitioning, Receipt and Issuing System in UPDATE. c. SB -3, Vehicular Radio d. AR 70-, Supply Policy Below The Wholesale Level as contained in Unit Supply UPDATE. e. DA PAM 70--, Using Unit Supply System Manual Procedures as contained in Unit Supply UPDATE. -8 f. Army Master Data File (AMDF) (Microfiche).

13 TB MAINTENANCE FORMS AND RECORDS Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA PAM as contained in Maintenance Management UPDATE. -9/(-0 blank)

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15 TB Chapter. INSTALLATION - RECOVERABILITY AND REQUISITIONING a. Recoverability of Previously Installed Components. () Tables - through -3 show those items which must be removed from the previous radio set installation and used with the newly furnished components to complete the transfer and installation of the radio sets in the HMMWVS. () The radio sets, mountings, antennas, and associated hardware (Figs. - through -6) will be removed and retained for all HMMWV installations. In the event that HMMWVS are not issued on a one to one exchange basis, contact your property book officer for disposition of radio sets and COMSEC Vinson equipment. Refer to AR 70- and DA PAM 70-- as changed by Unit Supply UPDATE. b. Requisition of Installation Kits. () Transition kits may be requisitioned if you have existing vehicles with radio installations that are to be replaced by HMMWVS M998, M038, M05 and M06. () Complete kits may be requisitioned only when a HMMWV M998, M038, M05 and M06 is not replacing an existing vehicle, and radio installations are required in the HMMWV M998, M038, M05 and M06 or a HMMWV M998, M038, M05 and M06 is replacing an existing vehicle that has no radio Installation and a radio installation is required in the HMMWV M998, M038, M05 and M06. (3) The units will need two each loop clamps, NSN , for the antenna tiedown per HMMWV. These clamps will be installed under existing bolts located on the side of the HMMWV. Refer to Antenna Tiedown Drawing A30467 (Fig. -7) for approximate location. (4) For dual radio installation, when two single radios are installed (i.e., two each AN/VRC-46), an additional Power Crossover Cable CX-47, NSN , must be requisitioned through normal supply channels. (5) The AN/GRC-06, -06A is installed on the rear roadside sponson. I (6) The AN/GRC-06, -06A requires the optional 00 AMP alternator. The 00 AMP alternator is available under NSN through normal supply channels. Change -

16 TABLE -. Component Removal From M55. TB NOTE: NSN s may have been superseded in the AMDF by later versions. COMPONENT NOUN VRC- VRC-43 VRC-46 VRC-47 VRC-49 GRC- VRC-64 GRC-60 NSN QTY QTY QTY QTY QTY QTY Ant. Tip for AT Audio Accessory Kit Ant. Tip for MS-8A C Handset (H-50) Headset H-5 (H-40) Loudspeaker Microphone M CX-47 ( ft 6 in) Mast Base Mast Section Mast Section Mast Section MT-09/VRC MT-898/VRC CX-473 (5 ) CX-473 (9 ) CX-47 (0 ) Bonding Jumper Cross Bar Assy (Long) Lead-in Support Kit M-340/GRC Ground Rod Assy Antenna Tiedown AB-65/GRC Mast Base CX-07/U (4 ) Antenna Cover Antenna Sheath clamp LS-66/U Loudspeaker AS-79/VRC Antenna CG-409G/U (6 in) CG-0099/U (7 in) CX-47 ( ft 6 in) CG-7/U (0 in) ALL VINSON Equipment X X X X X -

17 TABLE -. Component Removal From M5. TB Remove the following items from the M5 and retain for use in the HMMWV. NOTE: NSN s may have been superseded in the AMDF by later versions COMPONENT NOUN VRC- VRC-43 VRC-44 VRC-46, 64 GRC-60 NSN QTY QTY QTY QTY Ant. Tip for AT Audio Accessory Kit Ant. Tip for MS-8A C Handset (H-50) Headset H-5 (H-40) Loudspeaker Microphone M CX-47 ( ft 6 in) Mast Base Mast Section Mast Section Mast Section MT-09/VRC MT-898/VRC CX-473 (5 ) CX-473 (9 ) CX-47 (0 ) Bonding Jumper Cross Bar Assy (long) Lead-in Support Kit MT-340/GRC Ground Rod Assy Antenna Tiedown AB-65/GRC Mast Base CX-07/U (4 ) Antenna Cover Antenna Sheath Clamp LS-66/U Loudspeaker AS-79/VRC Antenna CG-409G/U (6 in) CG-0099/U (7 in) CX-47 ( ft 4 in) CG-7/U (0 in) Antenna guard assy Antenna mount assy. ALL VINSON Equipment X X X X -3

18 TABLE -3. Component Removal From M5. TB Remove the following items from the M5 and retain for use in the HMMWV. NOTE: NSN s may have been superseded in the AMDF by later versions. COMPONENT NOUN VRC-47 VRC-48 VRC-49 GRC-06 NSN QTY QTY QTY QTY Ant. Tip for AT Audio Accessory Kit Ant. Tip for MSA-8A C Handset (H-50) Headset H-5 (H-40) Loudspeaker Microphone M CX-47 ( ft 6 in) Mast Base Mast Section Mast Section Mast Section MT-09/VRC MT-898/VRC CX-473 (5 ) CX-473 (9 ) CX-47 (0 ) Bonding Jumper Cross Bar Assy (Long) Lead-in Support Kit MT-340/GRC Ground Rod Assy Antenna Tiedown AB-65/GRC Mast Base CX-07/U (4 ) Antenna Cover Antenna Sheath Clamp LS-66/U Loudspeaker AS-79/VRC Antenna CG-409G/U (6 in) CG-0099/U (7 in) CX-47 ( ft 6 in) CG-7/U (0 in) Antenna guard assy. ALL VINSON Equipment X X X -4 Change

19 TB Figure -. Configurations of AN/VRC- Series Radios (AN/VRC-, AN/VRc-4% AN/VRC-47, and AN/VRC-48). -5

20 TB Figure -. Configurations of AN/VRC- Series Radios (AN/VRC-43, AN/VRC-45, AN/VRC-46, and AN/VRC-49). -6

21 TB CEORJ007 Figure -3. AN/VRC- Series Components -7

22 TB Radio Set ANIGRC-06 uses RT-66/GRC with AM-3349/GRC-06. RT-66/GRC has 5 tuning controls which can be used to select any one of 8,000 operating frequencies. RT-66/GRC tunes in -khz units. CE ORJ 008 Figure -4. AN/GRC-l06. -8

23 TB Radio Set AN/GRC-06A uses FIT-834/GRC with AM-3349IGRC-06. RT-834/GRC has 6 tuning controls which can be used to select any one of 80,000 operating frequencies. RT-834/GRC tunes in 00-Hz units. CEORJ 009 Figure -5. AN/GRC-l06A. -9

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25 TB CLAMP LOOP MS333-0 /4-8 NUT AND BOLT P/O HARDWARE KIT, UNIVERSAL PPL #0 NSN ANTENNA TIE DOWN KIT CEORJOl Figure -7. Antenna Tie Down for HMMWV (Dwg No. A30467). -

26 TB (7) Dual radio (i.e., two antenna requirements) kits should be available after Jan 86. The dual radio kit part numbers are as follows: (a) Use for AN/VRC-, AN/VRC-47. This kit has a shelf for COMSEC Vinson mounts, installation instructions, antenna bracket, RF cable, and associated hardware. (b) Use for AN/VRC-44, AN/VRC-48, AN/VRC-49. This kit has radio/comsec Vinson shelf, cables, antenna bracket, hardware and installation instructions. (8) Units that are on the HMMWV fielding schedule should submit their dual radio (i.e., AN/VRC-, 44, 47, 48, 49) requirements per TOE to TACOM (AMCPM-TVLH), not later than 0 days prior to the scheduled HMMWV fielding date. Requirements shouid be consolidated at the property book level. c. VINSON Security Equipment RADIO SET EQUIP NSN QTY AN/VRC- MK-47/VRC MK-967/VRC AN/VRC-43 MK-47/VRC AN/VRC-44 MK-47/VRC MK-967/VRC AN/VRC-46 MK-47/VRC AN/VRC-47 MK-47/VRC MK-967/VRC AN/VRC-48 MK-47/VRC MK-967/VRC AN/VRC-49 MK-53/VRC MK-47/VRC AN/VRC-64 MK-49/VRC AN/VRC-60 MK-49/VRC () Transition installation - All existing COMSEC Vinson security equipment will be transferred from the M5/M56 to the HMMWV except for the Support Assembly SC-D-6934, NSN () New installation - if the M5/M56 has no COMSEC Vinson equipment, new COMSEC Vinson installation equipment must be requisitioned for the HMMWV. Refer to TM &P-l (FOUO), 30 Aug 83, and SB -700 (FOUO), 3 Mar 83. -

27 TB d. CECOM HMMWV Installation Kits RADIO L/K NOMEN LIN AN/VRC-/47 MK-503/VRC J48470 AN/VRC-44/48 MK-504/VRC J48538 AN/VRC-46 MK-50/VRC J4840 AN/VRC-49 MK-505/VRC J48606 AN/GRC-60 MK-50/VRC J4840 AN/VSC- MK-508/VSC J48674 AN/GRC-l06 MK-506/GRC J48674 AN/VRC-4 MK-507/VRC J88664 NSN () After transfer/swap-out of old /Ks, the HMMWV l/k will be accounted for under LINS listed above. () These installation kits are complete /Ks and will not be available until nd quarter, Fiscal Year DRAWING PACKAGE NUMBERS Drawing No. A30467 A30463 Sheet A30463 Sheet A A A3046 A30466 A3046 A30466 A30464 A30465 Fig. Figure -7 Figure -8 Figure -8 Figure -9 Figure -0 Figure - Figure - Figure -3 Figure -4 Figure -5 Figure -6-3 TOOLS REQUIRED Intermediate Direct Support Tool Kit -4 INSTALLATION PROCEDURES a. Drawing A30467, Antenna Tiedown for HMMWV (Fig. -7). Step. Remove l/4 n bolt that attaches rear door panel to the HMMWV. Step. Place Clamp Loop MS 333-0, NSN , or cut some clamp strap material and place the l/4" bolt through it. Step 3. Replace the l/4" bolt back into the vehicle. Do this to both sides of the vehicle. Step 4. The Antenna AS-79/VRC can be tied down to these clamp loops by tying one rope to each loop extended from the tiedown clip on the antenna. (Refer to Fig. -7, Antenna Tiedown Drawing A30467.) Change -3

28 TB b. Drawing A3046-3, Sheets and, Transition Installation of Radio Sets AN/VRC-43, AN/VRC-46, AN/VRC-64 or AN/GRC-60 (Fig. -8); Drawing A304660, Installation of TSEC/KY-57 for Combination with Radio Set AN/VRC-46; and Drawing A (Fig. -9), Installation of TSEC/KY-57 for Combination with Radio Set AN/VRC-64 or AN/GRC-60 (Fig. -0) in Truck /4 ton HMMWV. c. Items List. Remove the following items from the M5/M56 and retain for use in the HMMWV. COMPONENT VRC-43 GRC-60, VRC-64,VRC-46 NSN NOUN QTY QTY AS-79/VRC Antenna Ant. Tip for AT Antenna Tiedown Handset (H-50) Headset H-5 (H-40) Loudspeaker MT-09/VRC Microphone M-80 All COMSEC Vinson Equipment NOTE x 0 x NSNS may have been superseded in the AMDF by later versions. d. Transition Installation of AN/VRC-43,46,64 or AN/GRC-60 (Figs. - and -6) in HMMWV. Refer to Items List, c above, to find out which items are recovered and retained from either the M5 or M56 to be used in the HMMWV. Install those items per Drawing A30463 (Fig. -8). Step. Bolt Mount MT-09/VRC (Fig. -8) to existing front radio shelf using 5/6 U hardware provided. Step. Install Antenna AS-79/VRC (Figs. -, -3, and -8) onto existing curbside antenna bracket using 3/8" hardware provided. Step 3. Connect existing cable assemblies, both the radio frequency and control cable, to Antenna AS-79/VRC. Step 4. Connect existing power cable to J on Mount MT-09/VRC. Refer to cording diagram on Drawing A30463 (Fig. -8). Step 5. Install basic radio set into Mount MT-09/VRC. Step 6. Connect remaining cables to the basic radio set. -4

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31 TB CEORJ04 Figure -9. Installation of TSEC/KY-57 for Combination with AN/VRC-46 (Dwg No. A304660). -7

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33 TB e. Drawing A Item Names (Fig. -9) Item No. Name of Item Qty Req'd Remarks Security Equip, TSEC/KY-57 Vehicular Pwr Adapter, HYP-57/TSEC Base Mtg, Elec Equip, MT-466/VRC Interconnecting Box, J-353/U Cable Assy, S.P. Elec, CX-306/U (4 ft.) Cable Assy, S.P. Elec, CX-306/U (4 ft.) Cable Assy, S.P. Elec, CX-3063/U (3 ft.) Cable Assy, S.P. Elec, CX-3064/U Cable Clamp Kit, Univ. A/R Screw, Hex, HO, 5/6-4x3/4 Lg 4 Nut, Hex HO, 5/6-4 4 Washer, Lock, I.E.T. 5/6 8 NOTES. Order items and from CECOM, COMM Security Logistics Activity (SELCL), Fort Huachuca, Arizona Cut clamp strap material into required lengths for cable clamping. 3. Refer to Drawing SC-D for installation of Interconnecting Box J-353/U 4. f. Drawing A Item Names (Fig. -0) Note Note DL-SC-B DL-SC-B SM-D SM-I SM-D SM-D PPL 570 (Note ) P/O 3 Item No Name of Item Security Equip, TSEC/KY-57 Vehicular Pwr Adapter HYP-57/TSEC Base, Mtg, Elec Equip, MT-466/VRC Interconnecting Box J-353/U Cable Assy, S.P. Elec, CX-306/U (4 ft.) Cable Assy, S.P. Elec, CX-306/U (4 ft.) Cable Assy, S.P. Elec, CX-3063/U (3 ft.) Cable Assy, S.P. Elec, CX-3065/U Cable Clamp Kit, Univ A/R 0 Screw, Hex 5/6-4x3/4 Lg 4 Nut, Hex 5/6-4 4 Washer, Lock I.E.T. 5/6 8-9

34 TB NOTES. Order items and from CECOM, Comm Security Logistics Activity (SELCL), Fort Huachuca, Arizona Cut clamp strap material into required lengths for cable clamping. 3. Refer to Drawing SC-D for installation of Interconnecting Box J-353/U 4. g. Drawing A3046, Transition Installation of Radio Set AN/VRC- or AN/VRC-47 (Fig. -); and Drawing A30466, Installation of TSEC/KY-57 for Combination with Radio Set AN/VRC- or AN/VRC-47 (Fig. -) in Truck /4 Ton HMMWV. h. Items list Remove the following items from the M5/M56 and retain for use in the HMMWV. NSN COMPONENT VRC- VRC-47 NOUN QTY QTY AS-79/VRC ANTENNA Ant. Tip for AT Ant. Tip for MS-8A Antenna Tiedown CX-47 ( ft. 6 in.) Handset (H-50) Headset H-5 (H-40) Loudspeaker MT-09/VRC MT-898/VRC Mast Base Mast Section Mast Section Mast Section Microphone M-80 ALL COMSEC Vinson equipment NOTE X X NSNS may have been superseded in the AMDF by later versions. -0

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37 TB i. Transition Installation of Radio Set AN/VRC- or AN/VRC-47 (Fig. -) in HMMWV. Refer to Drawing A3046 (Fig. -) and Item List, h above, to find out which items are recovered and retained from either the M5 or M56 to be used in the HMMWV. Install those items per Drawing A3046. Kit should be installed in the HMMWV prior to installing any of the recovered items from the displaced vehicle. Step. Bolt Mount MT-09/VRC and Mount MT-898/VRC to existing front radio rack using 5/6" hardware provided. Step. Install Antenna AS-79/VRC (Fig. -) onto existing rear curbside antenna bracket using 3/8" hardware provided. Step 3. Connect existing cable assemblies, radio frequency, amd control cables to Antenna AS-79/VRC. Step 4. InstalI Antenna Mast Base AB-5/GR (Fig. -) and antenna adapter to rear roadside antenna bracket. Add Mast Sections MS-8A, MS7A, MS6A (Fig. -) to Mast Base AB-5/GR. Step 5. Connect radio frequency cable to Mast Base AB-5/GR. Step 6. Connect existing power cable to J on Mount MT-09/VRC. Refer to cording diagram on Drawing A3046 (Fig. -). Step 7. Connect Cable Assembly CX-47 from J3 of Mount MT-09/VRC to J of Mount MT-898/VRC. Step 8. Install basic radio sets into Mount MT-09/VRC and Mount MT-898/VRC. Step 9. Connect antenna cables to basic radio sets. Refer to cording diagram on Drawing A3046 (Fig. -). j. Item No. Name of Item Qty Req'd Remarks Security Equipment, TSEC/KY-57 Vehicular Pwr Adapter, HYP-57/TSEC Base, Mtg, Elec Equip, MT-466/VRC Interconnecting Box J-353/U Interconnecting BOX J-354/lJ Cable Assy, Pwr Elec CX-306/U (4 ft.) Cable Assy, Pwr Elec CX-306/U (4 ft.) Cable Assy, Pwr Elec CX-3063/U (3 ft.) Cable Assy, Pwr Elec CX-3064/U Cable Clamp Kit, Univ Screw, Hex HD, 5/6-4x3/4 Lg Nut, Hex 5/6-4 Washer, Lock I.E.T. 5/6 A/R Note Note DL-SC-B DL-SC-B DL-SC SM-D SM-D SM-D SM-D PPL 570 P/O 3 P/O 3-3

38 TB NOTES. Order items and from CECOM, Comm Security Logistics Activity (SELCL), Fort Huachuca, Arizona Cut clamp strap material into required lengths for cable clamping. 3. Refer to Drawing SC-D for Interconnecting Box J-353/U Refer to Drawing SC-D for Interconnecting Box J-353/U 4. k. Drawing A3046, Transition Installation of Radio Set AN/VRC-48 or AN/VRC-44 (Fig. -3); and Drawing A30466, Installation of TSEC/KY-57 for Combination With Radio Set AN/VRC-44 or AN/VRC-48 (Fig. -4) in Truck, /4 ton HMMWV.. Items List Remove the following items from M5 and retain for use in HMMWV. NSN COMPONENT NOUN VRC-44 QTY VRC-48 QTY All COMSEC Vinson Equipment AS-79/VRC Antenna Ant. Tip for AT-095 Ant. Tip for MS-8A Antenna Tiedown CG-7/U (0 in.) CX-47 ( ft. 6 in.) CX-47 ( ft. 6 in.) Handset (H-50) Headset H-5 (H-40) Loudspeaker MT-09/VRC MT-898/VRC Mast Base Mast Section Mast Section Mast Section Microphone M-80 NOTE x x NSNs may have been superseded in the AMDF by later versions. -4

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43 TB m. Transition Installation of Radio Set AN/VRC-44 or AN/VRC-48 (Fig. -) in HMMWV. Refer to Drawing A3046 (Fig. -3) and Items List, above, to find out which items are recovered and retained from either the M5 or M56 to be used in the HMMWV. install those items per Drawing A3046 (Fig. -3). Kit should be installed in the HMMWV prior to installing any of the recovered items from the displaced vehicle. Step. Bolt Mount MT-09/VRC and two Mounts MT-898/VRC to the two front radio shelves as shown on Drawing A3046 (Fig. -3) using 5/6" hardware provided. Step. Install Antenna AS-79/VRC (Figs. -, -3, and -3) onto existing rear curbside antenna bracket using 3/8 hardware provided. Step 3. Connect existing antenna cables, both radio frequency and control cables, to Antenna AS-79/VRC. Step 4. Install Antenna Mast Base AB-5/GR (Fig. -) and antenna adapter to rear roadside antenna bracket. Add Mast Sections MS-8A, MS-7A, MS-6A, (Fig. -) to Mast Base AB-5/GR. Step 5. Connect radio frequency cable to Mast Base AB-5/GR. Step 6. Connect existing power cable to J on Mount MT-09/VRC. Refer to cording diagram on Drawing A3046 (Fig. -3). Step 7. Connect Cable Assembly CX-47/VRC (, 6 ) from J3 of Mount MT-09/VRC to J of Mount MT-898. Step 8. Connect Cable Assembly CX-47/VRC (', 6 ) from J3 of first MT-898/VRC to J of second MT-898/VRC. Refer to cording Drawing A3046 (Fig. -3). Step 9. Install basic radio sets into MT-09/VRC and Mounts MT-898/VRC. Step 0. Connect antenna cables to basic radio sets. Refer to cording diagram on Drawing A3046 (Fig. -3). -9

44 TB n. Drawing A30466 Item Names (Fig. -4). Item No. Name of Item Qty Req'd Remarks Security Equipment, TSEC/KY-57 Vehicular Pwr Adapter HYP-57/TSEC Base, Mtg, Elec Equip MT-466/VRC Interconnecting Box J-353/U Interconnecting Box J-354/U Cable Assy, Pwr Elec CX-306/U (4 ft.) Cable Assy, Pwr Elec CX-306/U (4 ft.) Cable Assy, Pwr Elec CX-3063/U (3 ft.) Cable Assy, Pwr Elec CX-3064/U Cable Clamp Kit, Univ Screw, Hex HD, 5/6-4x3/4 Lg Nut, Hex 5/6-4 Washer, Lock I.E.T. 5/6 Bracket, TSEC/KY-57 Mounting A/R 4 Note Note DL-SC-B DL-SC-B DL-SC-B SM-D SM-D SM-D SM-D PPL 570 P/O 3 P/O 3 P/O VEH NOTES. Order items and from CECOM, Comm Security Logistics Activity (SELCL), Fort Huachuca, Arizona Cut clamp strap material into required lengths for cable clamping. 3. Refer to Drawing SC-D for Interconnecting Box J-354/U Refer to Drawing SC-D for Interconnecting Box J-354/U 4. o. Drawing A30464, Transition Installation of Radio Set AN/VRC-49 (Fig. -5); and Drawing A30465, Installation of TSEC/KY-57 for Combination with Radio Set AN/VRC-49 (Fig. -6) in Truck /4 ton HMMWV. -30

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49 TB p. Item List Remove the following items from the M5/M56 and retain for use in the HMMWV. NSN COMPONENT NOUN VRC-49 QTY AS-79/VRC Antenna Ant. Tip for AT Antenna Tiedown C CX-47 (0 ft.) CX-473 (5 ft.) CX-473 (9 ft.) Handset (H-50) Headset H-5 (H-40) MT-09/VRC Microphone M-80 All COMSEC Vinson Equipment X NOTE NSNS may have been superseded in the AMDF by later versions. q. Transition Installation of Radio Set AN/VRC-49 (Fig. -3) in HMMWV. Refer to Drawing A30464 (Fig. -5) and Items List, p. above, to find out which items are recovered and retained from either the M5 and M56 to be used in HMMWV. Install those items per Drawing A30464 (Fig. -5). Klt should be installed in the HMMWV prior to installing any of the recovered items from the displaced vehicles. Step. Bolt Mount MT-09/VRC to the two front radio shelves as shown on Drawing A30464 (Fig. -5) using 5/6" hardware provided. Step. Install Antenna AS-79/VRC (Fig. -, -3, and -5) onto existing rear curbside antenna bracket using 3/8 W hardware provided. Step 3. Install Antenna AS-79/VRC onto rear roadside antenna bracket using 3/8 hardware provided. Step 4. Connect antenna cables, radio frequency and control cable, to each Antenna AS-79/VRC. Step 5. Connect Cable Assembly CX-47/VRC from J3 on top shelf MT-09/VRC to J on lower shelf MT-09/VRC. -35

50 TB NOTE This cable is 0' long and should be coiled. A ' 6" Cable CX-47/U, NSN , should be requisitioned and when available should replace the 0' cable. Step 6. Install basic radio set into each MT-09/VRC. Step 7. Connect antenna cables to the radio sets. Refer to cording diagrams on Drawing A30464 (Fig. -5). Step 8. Bolt Control Box C-99/VRC (Fig. -3) to the mounting bracket using 5/6" hardware as shown on Drawing A30464 (Fig. -5) (Retransmission Installation). Step 9. Connect the two Cable Assemblies CX-473/VRC from J on each MT-09/VRC to Control Box C-99/VRC (Retransmission Installation). NOTE If CX-473/VRC is 9' in length, the excess length should be coiled. A 3' Cable CX-473/VRC should be requisitioned and when available should replace the 9' cable. r. Drawing A30465 Item Names (Fig. -6). Item No. Name of Item Qty Req'd Security Equipment, TSEC/KY-57 Note Vehicular Pwr Adapter, HYP-57/TSEC Note Base, Mtg, Elec Equip MT-466/VRC DL-SC-B Interconnecting Box J-353/U DL-SC-B Control Box C-0374/VRC Cable Assy, Pwr Elec CX-306/U (4 ft.) Cable Assy, Pwr Elec CX- Cable Assy, Pwr Elec CX- Cable Assy, Pwr Elec CX- Cable Assy, Pwr Elec CX- Cable Assy, Pwr Elec CX- Cable Clamp Kit, Univ SM-D /U (4 ft.) SM-D /U (9 ft.) 3068/U (3 ft.) 3063/U (3 ft.) SM-D /U SM-D AIR PPL 570 Screw, Hex HD, 5/6-4x3/4 Lg P/O 3 Nut, Hex 5/6-4 4 P/O 3 Washer, Lock I.E.T. 5/6 8 Screw, Hex HD 5/6-4x Lg Bracket SEC/KY-57 mounting Retransmission mounting bracket -36

51 TB NOTES. Order items and from CECOM, Comm Security Logistics Activity (SELCL), Fort Huachuca, Arizona Cut clamp strap material into required lengths for cable clamping. 3. Refer to Drawing SC-D for Interconnecting Box Replace Control Box C-99/VRC and Cable Assembly CX-473/VRC with items 5, 8, and 9. Drawing A304655, Installation of Radio Set AN/GRC-06 and AN/GRC-06A (Fig.; -7) in Truck, Cargo /4 Ton HMMWV. t. Items List Remove the following items from M5/M56 and retain for use in HMMWV. COMPONENT GRC-06, -06A NSN NOUN QTY AB-65/GRC Mast Base Ant. Tip for MS-8A Antenna Cover Antenna Sheath Clamp Antenna Tiedown Bonding Jumper CG-0099/U (7 in.) CG-409G/U (6 in.) cx-l07/u (4 ft.) Cross Bar Assy (long) Ground Rod Assy LS066/U Loudspeaker Lead-in Support Kit MT-340/GRC Mast Section Mast Section Mast Section Antenna Guard Assy 3 NOTE NSNS may have been superseded in the AMDF by later versions. Change -37

52 TB u. Installation of Radio Set AN/GRC-06 and AN/GRC-06A in HMMWV. Refer to Drawing A (Fig. -7) and Items List t. above to find out which items are recovered and retained from either the M5 or M56 to be used in HMMWV. Install those items per Drawing A (Fig. -7). Step. Install radio plate assembly on roadside sponson (Fig. -7, sheet ) by alining slotted holes of plate with existing bolt holes on sponson and mounting with /4 inch hardware. If troop seat exists: remove seat, install plate, and replace seat. Step. Install bonding jumper assembly. Step 3. Bolt lead in insulator assembly to antenna mount weldment. Bolt antenna mount weldment to roadside rear of vehicle. If troop seat exists, bolt antenna mount offset to weldment and install lead-in support assembly in offset (Fig. -7, sheet 3). Step 4. Install Mounting Base MT-340( )/GRC-06, Receiver/Transmitter RT-66( )/GRC or RT-834( )/GRC, and Amplifier AM-3349( )/GRC-06 on radio plate assembly then install Cables CX-0099/U and CG-409G/U as shown in figure -7, sheet. Step 5. Cut cable clamping material into required lengths and locate per figure -7, sheet. Step 6. Drill a -/4 inch hole in battery compartment (Fig. -7, sheet ) and install grommet material. Step 7. Route and clamp CX-007/U Cable Assemblies from RT unit and amplifier to battery compartment (Fig. -7, sheet ). CAUTION Be careful to drill only deep enough to break through vehicle floor. Step 8. Locate guard assembly over cable assemblies across vehicle floor then drill ten 0.59 diameter (No. drill) holes through guard and raised channels of vehicle floor. CAUTION Insulated wires go to positive terminal. Step 9. Trim CX-0D7/U Cable Assemblies to length, crimp and solder terminal lugs onto battery end of cable, then connect lugs to battery terminals as shown on figure -7, sheet. Step 0. Locate and mount lead-in insulator assembly on canvas top (Fig. -7, sheet ). Cut out inner canvas disc. Step. Keeping conductor of Lead CX-07/U at least inch from all metal, route and cut lead to required length. Tin end for antenna connection. -38 Change

53 TB Change -39

54 TB Change

55 TB Change -4

56 TB Step. Install antenna base adapter to antenna mount weldment. Install Mast Base AB-65/GR, antenna cover, Mast Sections MS-6A (3 each), MS-7A, and MS-8A, and antenna tip assembly to antenna base adapter. Step 3. Using existing /4 in. bolts, mount loop clamps to front door hinges on both sides of vehicle. Tie antenna down with tie down kit as shown on figure -7, sheet. Step 4. Using Loudspeaker LS-66/U as a template, locate and drill two 9/3-inch diameter holes in sponson as shown in figure -7, sheet. Step 5. Mount loudspeaker and, routing its cable with the CX-007/U Cables, connect to the RT Unit. v. Drawing A Item Names (Fig. -7) Item No. Name of Item Qty. Req 'd Remarks Receiver/Transmitter RT-66( )/GRC or RT-834( )/GRC Amplifier, RF AM-3349( )/GRC-06 Mounting Base MT-340( )/GRC-06 Mast Base AB-65/GR Adapter, Antenna Base Antenna Cover Antenna Mount Weldment Antenna Mount Offset Lead, Electrical CX-07/U (4 ft.) Lead-In Support Kit (AN/GRC-06) Bonding Jumper, Group 4 Radio Plate Assembly Loudspeaker, Dynamic LS-66/U Cable Assembly, RF CG-409G/U (6 in.) Cable Assembly, S.P. Electrical CX-0099/U (7 in.) Cable Assembly, S.P. Electrical CX-l007/U (9 ft.) Terminal Lug (for 3/8 stud) Cable Clamping Kit, Universal Grommet Backing Plate, Antenna Bracket Backing Plate, Antenna Weldment Guard Assembly Lead-In Insulator Assembly Cover, Antenna Mount Backing Plate (P/O Vehicle) Backing Plate (P/O ) Screw, Hex Hd, 3/8-6 x 3/4 Lg Washer, Flat 3/8 Nut, Hex 3/8-6 Washer, Lock, Split 3/3 I.D. Screw, Cap, Hex Hd, 5/6-4 x 3/4 Lg Nut, Hex 5/6-4 Washer, Lock ET 5/ SC-DL SC-C-6040 A30467 A30463 PPL3679 SC-B-7840 A30468 SC-DL-5739 SC-C-55 SM-B-5004 PPL570 A A3046 SC-D-7588 SC-C A30469 MS MS783-4 MS MS MS MS MS Change

57 TB Drawing A Item Names (Fig. -7) - Continued Item No. Name of Item Qty. Req 'd Remarks Bolt 5/6-8 X Lg Washer, Lock 5/6 Screw, Hex Hd, Cap /4-0 x Lg Nut, Hex /4-0 Washer, Flat /4 Screw, Self Tapping, Type A #0 x / Lg Screw, Pan Hd, Machine 6-3 x / Lg Screw, Pan Hd, Machine 6-3 x 3/4 Lg Nut, Hex 6-3 Washer, Flat 6 Antenna, Tie-Down Kit Clamp, Loop Mast Section MS-6A Mast Section MS-7A Mast Section MS-8A Antenna Tip Assembly MS MS MS MS5967- MS783-0 MS MS MS MS MS SC-C MS333-0 SC-C Change -43/(-44 blank)

58 By Order of the Secretary of the Army: Official: JOHN A. WICKHAM JR. General, United States Army Chief of Staff R. L. DILWORTH Brigadier General, United States Army The Adjutant General DISTRIBUTION: To be distributed in accordance with DA Form -43 literature requirements for TSEC/KY-57 and -5 literature requirements for AN/VRC-, -43 through -49, AN/VRC-53, -64, GRC-5, -60, AN/GRC-06 and AN/GRC-06A. *U.S. GOVERNMENT PRINTING OFFICE: /00 (-)

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60 PIN: