RADIO SET AN/PRC-6

1 DEPARTMENT OF THE ARMY TECHNICAL manual RADIO SET AN/PRC-6 OPERATION AND ORGANIZATIONAL maintenance .DEPARTMENT OF THE ARMY SEPTEMBER 1955 AGO 1426A-Sept OR CONDENSED OPERATING INSTRUCTIONS RADIO SET AN/PRC-6 (HANDlE-TALKIE) VOLUME knob VALVE TO RECEIVE 1. Screw antenna into connector on top of case. 2. Open AIR VALVE (turn to left).. 3. Turn switch marked to INT. and walt a m1nute for tubes to warm up. 4, Hoi d handie-tolkie with earphone to your ear (see illustration above). Adjust knob marked VOLUME to get hissing noise in earphone. Handie talkie is now in "receive" condition; noise decreases when voice signals ore received. TO SEND I.

2 H " 5 Before sending, listen to make sure no one. e se IS o~ t. e p ss PUSH-TO-TALK button on handie-talk1e and hold 1t m. H1ss1ng noise will stop. 6. re d d' . Handie-talkie is now in "sen " con 1t1on. 7, Keep your lips close to microphone; t'alk in normal tone. While talking, you will hear your own voice (sidetone) in earphone. 1 f .. 1 a. When you are through talking, release PUSH-TO-TALK button and 1sten or onswerang s1gno s. TO USE HANDSET 9. Plug handset cord into connelto\ on ta~die-talki: 10. Follow operating instructions t rkoudg EX'T eOxcFeFpi:NT t EXT o. In step 3 turn switch mar e o .. 1 k h h d t earphone and handset microphone.

3 B. Use handset push-to-to sw1tc 1 an se 1 TO TURN SET OFF 11. Turn ha1die-talkie switch marked EXT .-OFF-INT to OFF. 12. Close AIR VALVE (turn to right). Condensed Ope1 ating Inst1 uctions TM 296 201 AGO 1426A * TM 11-296 TECHNICAL manual } No. 11-296 DEPARTMENT OF THE ARMY WASHINGTON 25, D. C., 15 September 1955 RADIO SET AN/PRC-6 , OPERATION AND ORGANIZATIONAL maintenance P amgraph Page CHAPTER 1. DESCRIPTION AND DATA Scope _____ _ Description of RADIO Set AN /PRC-6---------------------------------- ----------U se of RADIO seL------------------------------------- -------------------------Operating characteristics------------------------- ----------------------------- Packaging data _____ _ Table of components for RADIO Set AN /PRC-6---------------------------------- --Additional equipment r quired _____ _ Auxiliary equipment_ _____ ---------------------------------------- ------------Nomenclature and common n ames _____ _ 2.

4 PREPARATION FOR USE Unpacking and checking equipment_ _____ _ Controls and their uses _____ _ Tuning RADIO Set AN /PRC-6 u sing Channel Alinement Indicator ID-292/PRC-6 ____ _ 3. OPERATION Section I. Procedure of operation. Installation of whip anwnna from (and returned to) stored position _____ _ To receive and to send (handie-talkie) ---------------------------------------- ---To r eceive and to send (handset)------------------------------- -----------------Removal and installation of Battery BA-270/U-------------------------------- ---U se of adjustable straP----------------------------------- --------------------- II. Field operation procedur s.

5 Siting and camouflage _____ _ Operation in arctic, tropical, and de sert climates _____ _ Antijamming procedure _____ ---------------------------------------- ------CHAPTER 4. PREVENTIVE maintenance Section I. Preventive m aintenance for RADIO Set AN I PRC-6. Gen eral------------------------------------ ----------------------------------Ech lons of preventive maintenance _____ _ II. Operator's preventive maintenance . Operator's maintenance check list_ _____ _ Operator's precautions _____ _ U se of preventive maintenance form _____ _ III. Organizational preventive maint nance. Organizational maintenance procedure _____ _ Preventive maintena nce form _____ _ CHAPTER 5.

6 TROUBLESHOOTING AT ORGANIZATIONAL LEVEL General--------------------------------- -------------------------------------Equ ipment available at organizationall veL _____ _ Tube replacemenL----------------------------- ------------------------------- Organizational troubleshooting procedure _____ _ Visual inspection _____ _ Resistance check at battery plug _____ _ Operational troubleshooting test_ _____ _ 6. LIMITED STORAGE AND DEMOLITION TO PREVENT ENEMY USE Limited storag ---------------------------------------- -----------------------Demolition to prevent enemy us _____ _ 1 3 2 3 3 4 4 4 5 6 6 7 7 7 8 8 9 8 10 11 11 11 12 12 13 13 14 13 15 19 16 19 17 22 18 30 19 30 18 30 21 32 22 3'2 23 32 24 32 25 32 26 34 27 36 28 37 29 37 30 3'7 31 39 32 39 33 39 34 39 35 43 36 43 This mnnunl supersedes TM 11-296, 16 October 1951, including C 1, 21 November 1951, C 2, 30 January 1953.

7 C 4, 16 September 1954. AGO 1426A TM 296 - 1651 Figtw e 1. RADIO S et AN/PRC-6 . 2 AGO 1426A CHAPTER 1 DESCRIPTION AND DATA 1. Scope This technical manual on RADIO Set AN I PRC-6 (fig. 1) contains instructions for opera-tors and organizational repairmen. a. Operator's Instructions. Complete instruc-tions for the operator are given in the following chapters: (1) Operation-chapter 3. (2) Operator's (first echelon) preventive maintenance -paragraphs 21 through 25. b. Or ganizational maintenance . Instructions in the following chapters are for authorized repairmen only : (1) Description and data-chapter 1. (2) Preparation for use-chapter 2. (3) Preventive maintenance (second ech-elon)-paragraphs 26 and 27.

8 ( 4) Troubleshooting at organizational level -chapter 5. Note. Field maintenance instructions and theory of RADIO Set AN /PRC- 6 al' covered in TM 11--4069, RADIO Set AN /PRC-6 Field maintenance . c. Comments on this publication should be forwarded directly to: Commanding Officer, The Signal Corps PublicaJtions Agency, Fort Monmouth, , ATTN: Standards Branch. 2. Description of RADIO Set ANIPRC-6 (fig. 2) RADIO Set AN IPRC-6 is a 13-tube, low-power, portable RADIO set used for voice communication over short distances. The major components of the RADIO set are RADIO Receiver-Transmitter RT-196 (*) IPRC-6 and Handset H-33 (*) IPT (fig. 2). The RADIO receiver-transmitter may be operated without the handset.

9 Battery BA-270I U is required for operation burt is not a component of RADIO Set ANIPRC-6; it is issued separately. Note. Throughout this manual , Handset H-33 C') /PT refers to Handset H-33C/PT or H-33D/PT; and RADIO AGO 1426A Receiver-Transmitter RT-196(*)/PRC-6 refers to RADIO Receiver-Transmitter RT-196/ PRC--6 or RT-196A/PRC-6. The differences in models are minor internal differences. The different models of the equip-ments are similar in appearance, and the operation and organizational maintenance of the equipments are the same. a. RADIO Receiver-Transmitter RT-196 ( *) 1 PRC- 6 (fig. 3). RADIO Receiver-Transmitter RT-196 (*) IPRC-6 is commonly referred to as a handie-talkie.

10 It resembles a hand telephone (fig. 2) and may be held in either hand when operating. The handie-talkie consists of a re-ceiver-transmitter chassis with vacuum tubes; a cover or shield for the receiver-transmitter chassis; a microphone and earphone (fig. 2) ; a flexible steel whip (vertical) antenna; and a two-piece cast-magnesium case held together by four lever-type latches (two on each side of the case). The receiver-transmitter chassis, the microphone and earphone, and the space for the battery are contained within the magnesium case. All operating controls of the handie-talkie are mounted on the outside of t he case. When the antenna is being used, it is mounted to a connector on the outside of 'the case.