AN-GRC-193A_serv_user_TM11-5820-924-13_1986.pdf

TM 11-5820-924-13 TECHNICAL MANUAL OPERATORS, ORGANIZATIONAL, AND DIRECT SUPPORT MAINTENANCE MANUAL OPERATING INSTRUCTIONS PAGE 2-1 OPERATOR PMCS PAGE 2-9 OPERATOR TROUBLESHOOTING PAGE 3-1 ORGANIZATIONAL PMCS PAGE 4-2 ORGANIZATIONAL TROUBLESHOOTING PAGE 4-4 DIRECT SUPPORT MAINTENANCE INSTRUCTIONS PAGE 5-1 RADIO SET AN/GRC-193A (NSN 5820-01-1 33-4195) HEADQUARTERS, DEPARTMENT OF THE ARMY 14 FEBRUARY 1986 TM 11-5820-924-13 C1 Change No. 1 HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC, 15 October 1991 Operators, Organizational and Direct Support Maintenance Manual RADIO SET AN/GRC-193A (NSN 5820-01-1334195) (EIC: GGE) TM 11-5820-924-13, 14 February 1986, Is changed as follows: 1. 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 bar adjacent to the identification number or by a miniature pointing hand. Remove pagesInsert pages Aand B E/(F blank) i and ii 1-1 through 1-6 1-9 and 1-10 2-11 and 212 2-15 through 2-18 223 through 2-32 A-1 and A-2 B-3 through B-6 B-9 through B-12 C-1 and C-2 D-1 and D-2 Index 1 through Index 5/(Index 6 blank) Aand B Eand F i and ii 1-1 through 1-6 1-9 and 1-10 2-11 /(2-12 blank) 2-15 through 2-18 2-23 through 2-32 A-1 and A-2 B-3 through B-6 B-9 through B-12 C-1 and C-2 D-1 and D-2 Index 1 through Index 5/(index 6 blank) 2. File this change sheet in front of the manual for reference purposes. Distribution authorized to the Department of Defense and DOD contractors only for official use or for administrative oroperational purposes. This determination was made on 1 June 1991. Other requests for this document will be referred to Commander, US Arm Communiatons-ElectronfcsCommand and Fort Monmouth, ATTN: AMSEL-LC-LM-LT, Fort Monmouth, New Jersey 07703-5000. DESTRUCTION NOTICE - Destroy by an method that will prevent discolure of contents or reconstruction of the document. By Order of the Secretary of the Army: GORDON R. SULLIVAN General, United States Army Chief of Staff MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army 00132 DISTRIBUTION: To be distributed in accordance with DA Form 12-51-E, block 0675, Operator, Unit, and Direct Support/General Support Maintenance Requirements for TM 11-5820-924-13. WARNING TM 11-5820-924-13 HIGH VOLTAGE is used in the operation of this equipment DEATH ON CONTACT may result if personnel fail to observe safety precautions Never work on electronic equipment unless there Is another person nearby who Is familiar with the opera- tion and hazards of the equipment and who is competent in administering first aid. When the technicians are aided by operators, they must be warned about dangerous areas. Whenever possible, the power supply to the equipment must be shut off before beginning work on the equipment. Take particular care to ground every capacitor likely to hold a dangerous potential. When working inside the equipment, after the power has been turned off, always ground every part before touching it. Be careful not to contact high-voltage connections or 115 volt ac input connections when installing or op- erating this equipment. Whenever the nature of the operation permits, keep one hand away from the equipment to reduce the hazard of current flowing through the body. Warning: Do not be misled by the term low voltage. Potentials as low as 50 volts may cause death under adverse conditions. For Artificial Respiration, refer to FM 21-11. Change 1 A TM 11-5820-924-13 WARNING SERIOUS INJURY OR EVEN DEATH CAN HAPPEN IF THE FOLLOWING ARE NOT CAREFULLY OBSERVED WHEN INSTALLING AND USING THE ANTENNAS USED WITH YOUR RADIO SETS. 1. ARE THERE ANY POWERLINES IN YOUR AREA OF OPERATION? 2. HOW HIGH ARE THESE POWERLINES? 3. HOW TALL ARE THE POLES OR TOWERS CARRYING POWERLINES? MOBILE OPERATION WITH WHIP ANTENNAS DO NOT STOP YOUR VEHICLE UNDER POWERLINES. G IF POSSIBLE, TRY TO MAINTAIN MOBILE COMMUNICATIONS WITH YOUR ANTENNA(S) TIED DOWN. c MAKE SURE AN ANTENNA TIP CAP IS SECURELY TAPED ON THE END OF EACH WHIP ANTENNA. G DO NOT LEAN AGAINST OR TOUCH A WHIP ANTENNA WHILE THE TRANSMITTER IS ON. G DURING CROSS-COUNTRY OPERATION, DO NOT ALLOW ANYONE TO STICK AN ARM, LEG OR WEAPON OVER THE SIDES OF THE VEHICLE. IF YOUR ANTENNA ACCIDENTALLY TOUCHES A POWERLINE AND A LEG, ARM OR WEAPON CONTACTS A DAMP BUSH OR THE GROUND, A SERIOUS OR FATAL ACCIDENT CAN HAPPEN. G IF YOU ARE NOT SURE THAT AN ANTENNA ON YOUR VEHICLE WILL CLEAR A POWERLINE, STOP BEFORE YOU GET CLOSE TO THE POWERLINE AND EITHER CAREFULLY TIE DOWN THE ANTENNA OR REMOVE ANTENNA SECTIONS TO MAKE SURE THAT YOU CAN SAFELY DRIVE UNDER THE POWERLINE. B TM 11-5820-924-13 FIXED OPERATION WITH LONG RANGE ANTENNAS TELESCOPING ANTENNA MAST WARNING TYPICAL TOWEREXTENDED RANGE DOUBLET ANTENNA ANTENNA NEVER ERECT THESE L0NG RANGE ANTENNAS DIRECTLY UNDER POWERLINES. IF YOU MuST ERECT THESE LONG RANGE ANTENNAS NEAR POWERLINES, POWERLINE POLES OR TOWERS, OR BUILDINGS WITH OVERHEAD POWERLINE CONNECTIONS, NEVER PUT THE ANTENNA CLOSER THAN TWO TIMES THE ANTENNA HEIGHT FROM THE BASE OF THE POWERLINE, POLE, TOWER OR BUILDINGS, NEVER ATTEMPT TO ERECT ANY L0NG RANGE ANTENNA WITHOUT A FULL TEAM. BEFORE ERECTING ANY LONG RANGE ANTENNA. INSPECT ALL THE PARTS MAKING UP THE ANTENNA KIT.DO NOT ERECT THE ANTENNA IF ANY PARTS ARE MISSING OR DAMAGED, DO AS MUCH OF THE ASSEMBLY WORK AS POSSIBLE ON THE GROUND. WHEN ERECTING THE ANTENNA, ALLOW ONLY TEAM PERSONNEL IN THE ERECTION AREA. MAKE SURE THAT THE AREA FOR THE ANCHORS IS FIRM. IF THE GROUND IS MARSHY OR SANDY, GET SPECIFIC INSTRUCTIONS FROM YOUR CREW CHIEF OR SUPERVISOR ON HOW TO REINFORCE THE ANCHORS. WHEN SELECTING LOCTIONS FOR ANCHORS, AVOID TRAVELED AREAS AND ROADS. IF YOU CANNOT AVOID THESE AREAS, GET SPECIFIC INSTRUCTIONS FROM YOUR SUPERVISOR AS TO WHAT CLEAR ANCE YOUR GuY WIRES AND ROPES MUST HAVE OVER THE TRAVELED AREAS AND ROAD. CLEARLY MARK ALL GUY WIRES AND ROPES WITH THE WARNING FLAGS OR SIGNS SUPPLIED BY YOUR UNIT.IN AN EMERGENCY, USE STRIPS OF WHlTE CLOTH AS WARNING STREAMERS. IF YOU SUSPECT THAT POWERLINES HAVE MADE ACCIDENTAL CONTACT WITH YOUR ANTENNA, STOP OPERATING, ROPE OFF THE ANTENNA AREA, AND NOTIFY YOUR SUPERIORS. IF THE WEATHER IN YOUR AREA CAN CAUSE ICE TO FORM ON YOUR LONG RANGE ANTENNA AND ITS GUY WIRES AND ROPES, ADD EXTRA GUYS TO SUPPORT THE SYSTEM, ROPE OFF THE AREA AND POST IT WITH WARNING SIGNS LIKE “ BEWARE OF FALLING ICE. DO NOT TRY TO ERECT ANY ANTENNA DURING AN ELECTRICAL STORM. KEEP A SHARP EYE ON YOUR ANCHORS AND GUYS. CHECK THEM DAILY AND IMMEDIATELY BEFORE AND AFTER BAD WEATHER. C WARNING WARNING WARNING WARNING TM 11-5820-924-13 HIGH VOLTAGE is used in the operation of this equipment. DEATH ON CONTACT or severe electrical shock may result if personnel fail to observe safety precautions. Learn the area of high voltage in each piece of equipment. Be careful not to contact high voltage connections when installing or operating this equipment. High voltages are present on the antenna during transmission. Do not touch or stand near the antenna when the equipment is energized. Make sure power is off before performing cleaning and inspection procedures. Adequate ventilation should be provided while using TRICHLOROTRIFLUOROETHANE. Prolonged breathing of vapor should be avoided. The solvent should not be used near heat or open flame; the products of decomposition are toxic and irritating. Since TRICHLOROTRIFLUOROETHANE dissolves natural oils, pro- longed contact with skin should be avoided. When necessary, use gloves which the solvent cannot penetrate. If the solvent is taken internally, consult a physician immediately. D TM 11-5820-924-13 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 TO SAFETY USING A DRY WOODEN POLE OR A DRY 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 Change 1 E TM 11-5820-924-13 WARNING Should mission requirements necessitate operation of the transmitter in the lower frequency range, it is possible to receive minor RF shocks and/or bums from the radio set case, handset, or CW telegraph key, when keying the transmitter. Increasing the output power of Radio Frequency Amplifier AM-6874/PRC-104 above the specified 20 watt level may also result in RF shocks and/or burns. Adjustments to the amplifier gain are not authorized by the operator. In order to reduce the possibility of receiving RF shocks and/or burns, note the following and take appropriate action, as required: oAvoid contact with exposed metal parts on the radio set case, handset, or telegraph key, when keying the transmitter. oBadly scratched surfaces and exposed edges should be painted (para 4-11, Corrosion Control). Painted surfaces are good insulators against shock. oWhen the radio set must be operated for an extended period of time at a single location, use of a grounding rod or counterpoise is recommended as a means of reducing the possibility of RF shocks and/or burns and improving radio performance. *The likelihood of receiving shocks is greater in a humid or wet environment and when the operator is in direct contact with ground. F Change 1 TM 11-5820-924-13 Technical Manual HEADQUARTERS DEPARTMENT OF THE ARMY No. 11-5820-924-13Washington, DC, 14 February 1986 OPERATORS, ORGANIZATIONAL AND DIRECT SUPPORT MAINTENANCE MANUAL RADIO SET AN/GRC-193A (NSN 5820-01-133-4195) 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, DA Form 2028 (Recommended Changes to Publications and Blank Forms) or DA Form 2028-2 located in back of this manual direct to: Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LM-LT, Fort Monmouth, New Jersey 07703-5007. in either case a reply will be furnished direct to you. Page HOW TO USE THIS MANUAL1-1 CHAPTER 1.INTRODUCTION SectionI General information II Equipment Description III Technical Principles of Operation CHAPTER 2.OPERATING INSTRUCTIONS SectionI Description and Use of Operators Controls and indicators II Operator Preventive Maintenance Checks and Services (PMCS) III Operation Under Usual Conditions IV Operation Under Unusual Conditions CHAPTER 3.OPERATOR MAINTENANCE INSTRUCTIONS SectionI Operator Troubleshooting Procedures II Operator Maintenance Procedures III Functional Description 11 1-4 1 7 21 2-8 213 2-22 3 - 1 3 - 8 3-8 Change 1 I TM 11-5820-924-13 Page C H A P T E R 4 Section C H A P T E R 5 Section APPENDIX A B c D E INDEX FOLDOUTS ORGANIZATIONAL MAINTENANCE INSTRUCTIONS IRepair Parts; Special Tools; Test, Measurement, and Diagnostic Equipment (TMDE); and Support Equipment4-1 IIOrganizational Preventive Maintenance Checks and Services (PMCS)4-2 IllOrganizational Troubleshooting Procedures4-4 IvOrganizational Maintenance Procedures 4-11 DIRECT SUPPORT MAINTENANCE INSTRUCTIONS5-1 IRepair Parts; Test, Measurement and Diagnostic Equipment (TMDE); and Support Equipment5-1 IIDirect Support Maintenance Procedures5-2 REFERENCESA-1 MAINTENANCE ALLOCATION CHARTB-1 COMPONENTS OF END ITEM LISTc-1 ADDITIONAL AUTHORIZATION LISTD-1 EXPENDABLE SUPPLIES AND MATERIAL LISTE-1 Index 1 FO-1 Interconnection Cabling and Wiring DiagramFO-1 FO-2 Interconnection Cabling and Wiring Diagram with Secure Voice Operation FO-2 ii TM 11-5820-924-13 HOW TO USE THIS MANUAL This manual is designed to help you operate and maintain the AN/G RC- 193A Radio Set. There is an alphabetical index located in the final pages for use in finding more specific items of information. Paragraphs in this manual are numbered by chapter and order of appearance within a chapter. A subject index appears at the beginning of each chapter listing sections that are included in that chapter. A more specfic subject index is located at the beginning of each section to help you find the exact paragraph youre looking for. Warning pages are located in the front of this manual. You should learn all warnings before operating or performing maintenance procedures on the equipment. Read all preliminary material found at the beginning of each task. It contains important information and safety instructions necessary to complete procedures. Instructions for using troubleshooting tables are located in paragraphs 3-1 and 4-5. Instructions for performing PMCS are located in paragraphs 2-2 and 4-4. There is a Maintenance Allocation Chart (MAC) located in appendix B which is current as of July 31, 1985. Measurements in this manual are given in both US standard and metric units. iii /(iv blank) TM 11-5820-924-13 CHAPTER 1 lNTRODUCTION Subject SectionPage General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I 1-1 Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .II 1-4 Technical Principles of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ill 1-8 Section I GENERAL INFORMATION Subject Para scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Consolidated Index of Army Publications and Blank Forms . . . . . . . . . . . . . . . . . . .1-2 Maintenance Forms, Records, and Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1“3 Reporting Equipment Improvement Recommendations (EIR) . . . . . . . . . . . . . . 1-4 Nomenclature Cross-Reference List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 Destruction of Army Material to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6 Preparation for Storage or Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 - Definition of Unusual Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 1-1. SCOPE Type of Manual: Operators, Organizational, and Direct Support Maintenance Manual. Equipment Name and Model Number: Radio Set A