OE-303_antenna_serv_user_TM11-5985-370-12_1984.pdf

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1、TM 11-5985-370-12 TECHNICAL MANUAL OPERATORS AND ORGANIZATIONAL MAINTENANCE MANUAL ANTENNA GROUP OE-303/GRC (NSN 5985-01-152-5845) HEADQUARTERS, DEPARTMENT OF THE ARMY19 JULY 1984 TM 11-5985-370-12 BEFORE LEAVING YOUR BASE, MAKE SURE YOU HAVE: ENOUGH WARNING SIGNS. EXTRA STREAMERS OR APPROVED MARKER

2、S. A SUPPLY OF SPECIAL ANCHORS TO USE IN THE TYPE OF SOIL YOU MAY FIND IN YOUR AREA OF OPERATIONS. EXTRA GUY ROPES OR APPROVED SUBSTITUTES. TM 11-5985-370-12 NEVER ERECT ANTENNA GROUP OE-303/GRC UNDER POWER LINES. IF YOU MUST ERECT THIS ANTENNA NEAR POWERLINES, POWER TOWERS, POWER POLES OR BUILDINGS

3、 WITH OVERHEAD POWER WIRES, FOLLOW THE RULE: “DOUBLE THE HEIGHT OF THE TALLEST THING IN THE AREA” EXAMPLE: If a powerline tower is 80 feet tall, (your antenna is 30 feet tall) DOUBLE 80 FEET to get a SAFE DISTANCE of 160 feet AWAY FROM the powerline tower. NEVER ATTEMPT TO ERECT THIS ANTENNA WITHOUT

4、 A TEAM OF TWO PERSONS AND THE NECESSARY HELP TO PROVIDE ADEQUATE CONTROL OF FOOT AND VEHICLE TRAFFIC IN THE AREA DURING ANTENNA ERECTION. AND NEVER ERECT OR OPERATE THIS ANTENNA DURING AN ELECTRICAL STORM. CLEARLY MARK THE ANTENNA AREA WITH SIGNS TO PREVENT PEOPLE AND VEHICLES FROM DRIVING THROUGH

5、THE AREA OR ATTEMPTING TO DRIVE UNDER THE ANTENNA ITSELF. IT MAY BE NECESSARY TO POST SIGNS IN SEVERAL LOCATIONS TO GET EFFECTIVE RESULTS. IT MAY EVEN BE NECESSARY TO POST A GUARD OR WATCH DURING CERTAIN TIMES (LIKE BLACKOUT OPERATIONS, BAD WEATHER, TROOP MOVEMENT). YOUR SUPERVISOR SHOULD CONSULT WI

6、TH THE UNIT SAFETY OFFICER TO MAKE SURE THAT ALL UNITS IN YOUR AREA ARE AWARE THAT YOUR LONG RANGE ANTENNA IS TAKING UP A LARGE AREA AND TO BE CAREFUL. MAKE SURE THE SOIL CAN SAFELY HOLD YOUR ANTENNA ANCHORS. IF THE SOIL IS LOOSE, MARSHY OR SANDY, IT MAY BE NECESSARY TO USE SPECIAL ANCHORS. USE OF S

7、PECIAL ANCHORS IS COVERED IN THIS MANUAL. WHEN OPERATING UNDER UNUSUAL CONDITIONS, IT WILL BE NECESSARY TO KEEP A SHARP EYE ON ALL ANCHORS UNTIL THESE CONDITIONS PASS. A TM 11-5985-370-12 CLEARLY MARK ALL GUY WIRES, GUY ROPES AND THE ANTENNA WIRES WITH FLAGS OR STREAMERS. STRIPS OF CLOTH MAKE GOOD S

8、TREAMERS. IF THE WEATHER IN YOUR AREA CAN CAUSE ICE TO FORM ON THE ANTENNA, GUY WIRES AND GUY ROPES, ADD EXTRA GUYS TO SUPPORT THE ANTENNA. CLEARLY MARK THE AREA WITH WARNING SIGNS LIKE “BEWARE OF FALLING ICE”. IF YOU SUSPECT THAT POWERLINES HAVE MADE ACCIDENTAL CON- TACT WITH YOUR ANTENNA - STOP OP

9、ERATION - TURN OFF THE EQUIPMENT- ROPE OFF OR HAVE SOME PERSON GUARD THE ANTENNA AREA - AND NOTIFY YOUR TEAM CHIEF. WHEN SELECTING A SITE FOR YOUR ANTENNA, KEEP IN MIND THAT YOU SHOULD SELECT GROUND WHICH WILL NOT ACCUMULATE WATER WHICH CAN REACH UP TO THE TRANSFORMERS USED AT EACH END OF THE ANTENN

10、A. THIS IS TO PREVENT A SHOCK HAZARD. FUMES OF TRICHLOROTRIFLOUROETHANE ARE POISONOUS. PROVIDE ADEQUATE VENTILATION WHENEVER YOU USE IT. DO NOT USE THIS SOLVENT NEAR HEAT OR OPEN FLAME. TRICHLOROTRIFLOUROETHANE WILL NOT BURN, BUT HEAT TURNS THE SOLVENT INTO POISONOUS AND IRRITATING FUMES. DO NOT BRE

11、ATHE THE FUMES OR VAPORS. THIS SOLVENT DISSOLVES NATURAL SKIN OILS. DO NOT GET THE SOLVENT ON YOUR SKIN. USE GLOVES, SLEEVES AND AN APRON WHICH THE SOLVENT CANNOT PENETRATE. IF THE SOLVENT IS TAKEN INTERNALLY, CONSULT A PHYSICIAN IMMEDIATELY. USE THIS SOLVENT ONLY ON THE METAL MAST SECTIONS, DO NOT

12、CLEAN THE TRAN- SFORMER HOUSINGS WITH THIS SOLVENT. B TM 11-5985-370-12 SAFETY STEPS TO FOLLOW IF SOMEONE IS THE VICTIM OF ELECTRICAL SHOCK DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL IF POSSIBLE ,TURN OFF THE ELECTRICAL POWER IF YOU CANNOT TURN OFF THE ELECTRICAL POWER, PULL, PUSH, OR LIFT THE PERSON

13、 TO SAFETY USING A WOODEN POLE OR A ROPE OR SOME OTHER INSULATING MATERIAL SEND FOR HELP AS SOON AS POSSIBLE AFTER THE INJURED PERSON IS FREE OF CONTACT WITH THE SOURCE OF ELECTRICAL SHOCK, MOVE THE PERSON A SHORT DISTANCE AWAY AND IMMEDIATELY START ARTIFICIAL RESUSCITATION C TM 11-5985-370-12 HOW T

14、O USE THIS MANUAL This technical manual includes a cover index to assist you in locating the information you need to operate and maintain Antenna Group OE-303/GRC. In addition, this manual is also divided into chapters, sections and paragraphs which are numbered sequentially. Instructions on install

15、ation and use of this antenna equipment are presented in a detailed sequence. DO NOT ATTEMPT ANY SHORT CUTS in installing and using this antenna equipment. FOLLOW THE INSTRUCTIONS IN THIS MANUAL. This antenna equipment has been designed to work with certain radio sets in a certain frequency range. D

16、O NOT ATTEMPT TO REDESIGN THIS ANTENNA. Follow the specific DIMENSIONS and MEASUREMENTS in this manual. D TM 11-5985-370-12 TECHNICAL MANUAL NO. 11-5985-370-12 HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC, 19 July 1984 OPERATORS AND ORGANIZATIONAL MAINTENANCE MANUAL FOR ANTENNA GROUP OE-303/GR

17、C (NSN 5985-01-152-5845) REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. lf you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form 2

18、028-2 located in the back of this manual direct to: Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: DRSEL- ME-MP Fort Monmouth, New Jersey 07703. In either case, a reply will be furnished direct to you. D CHAPTER 1. Section I. Il. Ill. CHAPTER 2. Section I. Il. III. IV

19、. V . V I . HOW TO USE THIS MANUAL INTRODUCTION General Information PAGE 1 - 1 Equipment Description Principles of Operation 1-10 1-17 OPERATING INSTRUCTIONS DescriPtion and Use of Operators Controls PMCS Operation Under Normal Conditions 2 - 1 2 - 4 2 - 9 2 - 1 3 2 - 2 5 2 - 3 5 Antenna Erection Or

20、ienting the Half -Rhombic Antenna Operation Under Unusual Conditions i TM 11-5985-370-12 CHAPTER Section I. CHAPTER Section I. 3. OPERATOR MAINTENANCE Troubleshooting 4. ORGANIZATIONAL MAINTENANCE 3-1 Repair Parts and TMDE Il. PMCS Ill. Troubleshooting 4-1 4-1 4-3 IV. Maintenance Procedures4-6 APPEN

21、DIX A Reference B Maintenance Allocation C Components of End ltem List D Additional Authorization List (Not Applicable) E Expendable Supplies and Materials List A - 1 B - 1 C - 1 D - 1 E - 1 i i TM 11-5985-370-12 CHAPTER 1 INTRODUCTION SECTION I. GENERAL INFORMATION 1-1. SCOPE This technical manual

22、covers Antenna Group OE-303/GRC. Instructions are given for: installation (2 person team) operation. troubleshooting. operator/crew maintenance. organizational maintenance. Antenna Group OE-303/GRC consists of 3 major items: Antenna AS-3490/GRC. Radio Frequency Cable Assembly CG-1889 C/U. Mast Assem

23、bly AB-1244A/GRC. 1-1 TM 11-5985-370-12 Antenna Group OE-303/GRC has the following characteristics: rugged. lightweight. directional radiation. no adjustments required. easy installation. It cannot be overemphasized that this antenna must be used with caution. It occupies a large area, Both foot and

24、 vehicular traffic must be controlled in the antenna area. The CAUTIONS and WARNINGS in the manual give you specific instructions on how to control traffic and to prevent accidents. 1-2 TM 11-5985-370-12 1-2. MAINTENANCE FORMS. RECORDS AND REPORTS Reports of Maintenance and Unsatisfactory Equipment.

25、 Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA Pam 738-750 as contained in the Maintenance Management Update. Air Force personnel will use AFR 66-1 for maintenance reporting and TO-00-35D54 for unsatisfactory equipment reporting. Navy perso

26、nnel will report maintenance performed utilizing the Maintenance Data Collection Subsystem (MDCS) IAW OPNAVINST 4790.2, VoI 3 and unsatisfactory material/conditions (UR submissions) IAW OPNAVINST 4790,2, Vol 2, chapter 17. Reporting of Packaging and Handling Deficienciews. Fill out and forward SF 36

27、4 (Report of Discrepancy (ROD) as prescribed in AR 735-11-2/DLAR 4140.55/NAVMATINST 4355.73A/AFR 400-54/MCO 4430.3F. Discrepancy In Shipment Report (DISREP) (SF 361). Fill out and forward Discrepancy in Shipment Report (DISREP) (SF 361) as prescribed in AR 55- 38/NAVSUPINST 4610.33C/AFR 75-18/MCO P4

28、610.19D/DLAR 4500.15. 1-3. DESTRUCTION OF ARMY ELECTRONICS MATERIEL Destruction of Army electronics materiel to prevent enemy use shall be in accordance with TM 750-244-2, 1-4. ADMINISTRATIVE STORAGE Administrative storage of equipment issued to and used by Army activities will have preventive maint

29、enance performed in accordance with the PMCS chart before storing. When removing the equipment from administrative storage, the PMCS should be performed to assure operational readiness. 1-5. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR) If your equipment needs improvement, let us know. Send

30、us an EIR. You, the user are the only one who can tell us what you dont like about your equipment. Let us know why you dont like the design. Put in on SF 368 (Quality Deficiency Report). Mail it to Commander, U.S. Army Communications-Electronics Command and Fort Monmouth, ATTN: DRSEL-ME-MP, Fort Mon

31、mouth, NJ 07703. Well send you a reply. 1.6. WARRANTY INFORMATlON Certain items of equipment are covered under a special warranty. Your C-E ORG MAINT team should have the necessary information for identifying which items are protected and the procedures for getting warranty repair and/or replacement

32、. 1-3 TM 11-5985-370-12 1-7. NOMENCLATURE CROSS-REFERENCE LIST COMMON NAMEOFFICIAL NOMENCLATURE AND GENERAL APPLICATION FOR ANTENNA AS-3490/GRC (One of three major items making up the OE-303/GRC) HALFRHOMBICAntenna Wire Assembly, VHF INVERTED-V. ANTENNAAntenna consisting of 166 feet of WD-1/TT Field

33、 Wire. MAST INSULATORInsulating Tube Assembly. Fits on top of the mast to insulate and form a V (half-rhombic, field wire) antenna. DISSIPATIONTRANSMISSION LINE, CABLE DISSIPATION. 175 feet of RG-316/U. INPUT TRANSFORMER Transformer, Matching. NOTE: ANY OF THE TRANSFORMERS CAN BE PLACED IN THE INPUT

34、 OR For proper connection TERMINATION TRANSFORMER POSI- to the radio set.TION. THE TERMINATION TRANSFER- MER IS IN THE DIRECTION OF TRANS- TERMINATIONTransformer, Matching.MISSION AND ITS GROUND TERMl- TRANSFORMER NAL IS LEFT UNCONNECTED. TRANSFORMERSnubber Assembly, SNUBBERtransformer. ASSEMBLYsecu

35、res transformer to a stake. ANTENNA STAKE Stake, Antenna One for the INPUT TRANSFORMER and one for the TERMINATION TRANSFORMER. ANTENNA REELReel, RL-29, one for the field wire antenna and one for the antenna DISSIPATION CABLE. RUNNING SPARESIncludes 1 each transformer, matching and 1 each stake, ant

36、enna guy. 1-4 TM 11-5985-370-12 1-7. NOMENCLATURE CROSS-REFERENCE LIST (Continued) COMMON NAMEOFFICIAL NOMENCLATURE AND GENERAL APPLICATION FOR RADIO FREQUENCY CABLE ASSEMBLY CG-1889C/U. The second of three major items making up Antenna Group OE-303/GRC RADIO CABLE RADIO CABLE END CONNECTOR Connecto

37、r, RF. RADIO CABLE ADAPTER ANTENNA TRANSIT BAG Cable Assembly, RF. 50 feet of RG-213/U coaxial cable. Used to connect the INPUT TRANSFORMER on the HALFRHOMBIC ANTENNA to the radio set. One connector is permanently installed on each end of the RADIO CABLE. Connector Adapter, Part Number TRU 2064-1. A

38、 type N female to BNC male adapter. Required to connect certain radio that cannot accept the permanently attached RADIO CABLE END CONNECTOR . BAG, transit. Holds two major items in Antenna Group OE-303/GRC. 1-5 TM 11-5985-370-12 7.1 NOMENCLATURE CROSS-REFERENCE LIST (Continued) FOR MAST ASSEMBLY AB-

39、1244A/GRC. The third item making up ANTENNA GROUP OE-303/GRC. COMMON NAMEOFFICIAL NOMENCLATURE AND GENERAL APPLICATION MAST AND BASE ASSEMBLY MAST BASE PLATE MAST BASE STAKE LOWER MAST SECTION LOWER ADAPTER ASSEMBLY LOWER GUY PLATE UPPER MAST SECTION UPPER ADAPTER ASSEMBLY UPPER GUY PLATE UPPER GUY

40、ASSEMBLY LOWER GUY ASSEMBLY Mast and Base Assembly, 1 each. Lower part is a Stake. Upper part is a movable short mast. Plate, 1 each. The base for the Mast Assembly. Stake, 2 each. Secure Mast Base Plate. Mast Section Assembly, Lower, 5 each. Form bottom part of mast. Adapter Assembly, Lower, 1 each

41、. For properly holding the Lower Guy Plate. Guy Plate, 1 each. Holds 4 Lower Guy Assemblies. Mast Section Assembly, Upper, 5 each. Form top part of mast. Adapter Assembly, Upper, 1 each. For properly holding the Upper Guy Plate. Guy Plate, 1 each. Holds 4 Upper Guy Assemblies. Guy Assembly, 4 each.

42、Color Code = Red. Guy Assembly, 4 each. Color Code = Blue. 1-6 GUY STAKE RL-28 REEL HAMMER MAST TRANSIT BAG 16 STRAIN CLAMP NOTE: Items used with the LOWER MAST TM 11-5985-370-12 Stake Assembly, 4 Each. Secure the 4 Upper and 4 Lower Guy Assemblies. Reel, RL-28, 2 each, for the GUY ASSEMBLIES. Hamme

43、r, 1 each, 2 pound. Bag, Transit, 1 each, for all Mast AB-1224A/GRC items. Clamp, electrical, conductor, strain. 1 each is issued but not used with the OE-303/GRC. SECTIONS and the LOWER GUYS are associated with Blue markings on components. Items used with the UPPER MAST SECTIONS and the UPPER GUYS

44、are associated with Red markings on components. 1-7 TM 11-5985-370-12 1-7. NOMENCLATURE CROSS-REFERENCE LIST (Continued) COMMON NAMEOFFICIAL NOMENCLATURE MULTIMETERMultimeter AN/USM-223. TOOL KITTool Kit, Electronic, TK-100/G. (NOT SHOWN) COMPASSCompass, Magentic. 1-8 TM 11-5985-370-12 1-8. LIST OF

45、ABBREVIATIONS MHZ RF VHF PMCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Megahertz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Radio Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Very High Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . .

47、 . . . . . . . . . . . . . . . . . . . . . . .Preventive Maintenance Checks and Services 1-9. GLOSSARY BIDIRECTIONALAny two opposite directions. CEOICommunication Electronics Operating Instructions CONFIGURATIONArrangement or hook-up. DISSIPATION LINEA cabLe connected to form a resistance and to get

48、 rid of heat. HALF-RHOMBICOne half of a Rhombus. HORIZONTAL POLARIZATIONA radio wave front from a horizontal antenna. OMNIDIRECTIONALAll directions. RHOMBICA rhombus or diamond shape. UNIDIRECTIONALAny ONE DIRECTION. VERTICAL POLARIZATIONA radio wave front from a vertical antenna. 1-9 TM 11-5985-370

49、-12 SECTION Il. EQUIPMENT DESCRIPTION 1-10. EQUIPMENT PURPOSE, CAPABILITIES AND FEATURES Designed to provide greater range for two families of VHF radios: AN/VRC-12 series of venicular radio sets: Includes AN/VRC-12, AN/VRC-43, AN/VRC-44, AN/VRC-45, AN/VRC-46, AN/VRC-47, AN/VRC AN/VRC-49. AND Early model (partial solid state) portable radio sets Includes AN/PRC-25, AN/VRC-53 and AN/GRC-125. OR Late Model (all solid state) portable radio sets: -48, Includes AN/PRC-77, AN/VRC-64 and AN/GRC-160. 1-10 TM 11-5985-370-12 Simple design: No complicated parts. Simpl