RADIO RECEIVER DIRECTION FINDER SET AN/PRD-11
Chapter 1. INTRODUCTION - TM-11-5825-278-12-20011
MAINTENANCE FORMS, RECORDS AND REPORTS - TM-11-5825-278-12-20012
NOMENCLATURE CROSS-REFERENCE LIST - TM-11-5825-278-12-20013
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS
LIST OF ABBREVIATIONS
GLOSSARY - TM-11-5825-278-12-20016
GLOSSARY - Continued
Section II. EQUIPMENT DESCRIPTION - TM-11-5825-278-12-20019
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-11-5825-278-12-20020
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20021
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20022
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20023
DIFFERENCES BETWEEN MODELS - TM-11-5825-278-12-20024
EQUIPMENT DATA - TM-11-5825-278-12-20025
SAFETY, CARE AND HANDLING
TECHNICAL PRINCIPLES OF OPERATION
TYPICAL DATA FLOW
MODE OF OPERATION
Netted Operation
Chapter 2. OPERATING INSTRUCTIONS - TM-11-5825-278-12-20031
RECEIVER CONTROLS, INDICATORS AND CONNECTORS
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20033
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20034
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20035
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20037
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20038
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - TM-11-5825-278-12-20039
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - Continued
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - TM-11-5825-278-12-20041
ANTENNA CONNECTORS AND INDICATOR
Section II. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
ROUTINE CHECKS AND SERVICES
Section III. OPERATION UNDER USUAL CONDITIONS - TM-11-5825-278-12-20045
SITE SELECTION
Terrain Considerations
SITE SELECTION - Continued
Signal Path Considerations
IMPROPER SITE LOCATIONS
ASSEMBLY AND PREPARATION FOR USE
Setting Up the Tripod (sheet 1 of 3)
Setting Up the Tripod (sheet 2 of 3)
Setting Up the Tripod (sheet 3 of 3)
Installing DF Antenna Mast and Elements (sheet 1 of 6)
Installing DF Antenna Mast and Elements (sheet 2 of 6)
Installing DF Antenna Mast and Elements (sheet 3 of 6)
Installing DF Antenna Mast and Elements (sheet 4 of 6)
Installing DF Antenna Mast and Elements (sheet 5 of 6)
Installing DF Antenna Mast and Elements (sheet 6 of 6)
Cabling Antenna (sheet 1 of 5)
Cabling Antenna (sheet 2 of 5)
Cabling Antenna (sheet 3 of 5)
Cabling Antenna (sheet 4 of 5)
Cabling Antenna (sheet 5 of 5)
Orienting and Raising Antenna (sheet 1 of 7)
Orienting and Raising Antenna (sheet 2 of 7)
Orienting and Raising Antenna (sheet 3 of 7)
Orienting and Raising Antenna (sheet 4 of 7)
Orienting and Raising Antenna (sheet 5 of 7)
Orienting and Raising Antenna (sheet 6 of 7)
Orienting and Raising Antenna (sheet 7 of 7)
Battery Installation.
BA-4386/PRC-25 Battery Pack Installation (sheet 1 of 3)
BA-4386/PRC-25 Battery Pack Installation (sheet 2 of 3)
BA-4386/PRC-25 Battery Pack Installation (sheet 3 of 3)
D-Cell Battery Installation (sheet 1 of 4)
D-Cell Battery Installation (sheet 2 of 4)
D-Cell Battery Installation (sheet 3 of 4)
D-Cell Battery Installation (sheet 4 of 4)
Unit Set Up
Stacking Units (sheet 1 of 3)
Stacking Units (sheet 2 of 3)
Stacking Units (sheet 3 of 3)
Cabling Units (sheet 1 of 7)
Cabling Units (sheet 2 of 7)
Cabling Units (sheet 3 of 7)
Cabling Units (sheet 4 of 7)
Cabling Units (sheet 5 of 7)
Cabling Units (sheet 6 of 7)
Cabling Units (sheet 7 of 7)
INITIAL ADJUSTMENTS
Powering Up Receivers (sheet 1 of 2)
Powering Up Receivers (sheet 2 of 2)
Powering Up Processor (sheet 1 of 2)
Powering Up Processor (sheet 2 of 2)
Powering Up Signal Monitor (sheet 1 of 2)
Powering Up Signal Monitor (sheet 2 of 2)
Unit Control Settings.
Receiver Control Settings (sheet 1 of 5)
Receiver Control Settings (sheet 2 of 5)
Receiver Control Settings (sheet 3 of 5)
Receiver Control Settings (sheet 4 of 5)
Receiver Control Settings (sheet 5 of 5)
DF Processor Control Settings (sheet 1 of 3)
DF Processor Control Settings (sheet 2 of 3)
DF Processor Control Settings (sheet 3 of 3)
Signal Monitor Control Settings (sheet 1 of 4)
Signal Monitor Control Settings (sheet 2 of 4)
Signal Monitor Control Settings (sheet 3 of 4)
Signal Monitor Control Settings (sheet 4 of 4)
OPERATING PROCEDURES - TM-11-5825-278-12-20113
Tuning to a Frequency (sheet 1 of 8)
Tuning to a Frequency (sheet 2 of 8)
Tuning to a Frequency (sheet 3 of 8)
Tuning to a Frequency (sheet 4 of 8)
Tuning to a Frequency (sheet 5 of 8)
Tuning to a Frequency (sheet 6 of 8)
Tuning to a Frequency (sheet 7 of 8)
Tuning to a Frequency (sheet 8 of 8)
Monitoring the Signal and Reporting Transmission Data (sheet 1 of 2)
Monitoring the Signal and Reporting Transmission Data (sheet 2 of 2)
Searching a Frequency Range
Searching a Frequency Range (cont) - TM-11-5825-278-12-20125
Searching a Frequency Range (cont) - TM-11-5825-278-12-20126
Searching a Frequency Range (cont) - TM-11-5825-278-12-20127
Responding To a Df Flash
Responding To a Df Flash (cont) - TM-11-5825-278-12-20129
Responding To a Df Flash (cont) - TM-11-5825-278-12-20130
Responding To a Df Flash (cont) - TM-11-5825-278-12-20131
PREPARATION FOR MOVEMENT - TM-11-5825-278-12-20132
Powering down units
Disconnecting cables (sheet 1 of 4)
Disconnecting cables (sheet 2 of 4)
Disconnecting cables (sheet 3 of 4)
Disconnecting cables (sheet 4 of 4)
Tearing down units (sheet 1 of 3)
Tearing down units (sheet 2 of 3)
Tearing down units (sheet 3 of 3)
Tearing Down Df Antenna
Lowering df antenna
Disconnecting df antenna cables (sheet 1 of 3)
Disconnecting df antenna cables (sheet 2 of 3)
Disconnecting df antenna cables (sheet 3 of 3)
Removing df antenna mast and elements (sheet 1 of 5)
Removing df antenna mast and elements (sheet 2 of 5)
Removing df antenna mast and elements (sheet 3 of 5)
Removing df antenna mast and elements (sheet 4 of 5)
Removing df antenna mast and elements (sheet 5 of 5)
Tearing down tripod (sheet 1 of 2)
Tearing down tripod (sheet 2 of 2)
OPERATION OF AUXILIARY EQUIPMENT
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
OPERATION IN UNUSUAL WEATHER
FORDING
Chapter 3. OPERATOR MAINTENANCE INSTRUCTIONS
SYMPTOM INDEX - TM-11-5825-278-12-20158
TROUBLESHOOTING PROCEDURES - TM-11-5825-278-12-20159
POWER LAMP THAT DOES NOT LIGHT - TM-11-5825-278-12-20160
FREQUENCY MHZ DISPLAY THAT DOES NOT LIGHT - TM-11-5825-278-12-20161
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER - TM-11-5825-278-12-20162
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20163
FREOUENCY MHz DISPLAY THAT HAS UNSTABLE DIGITS
POWER LAMP THAT DOES NOT LIGHT (SHEET 1 OF 2)
POWER LAMP THAT DOES NOT LIGHT (SHEET 2 OF 2)
NO LINE OF BEARING DISPLAY - TM-11-5825-278-12-20167
DISPLAYS INCORRECT LINE OF BEARING
DISPLAYS RANDOM LINES OF BEARING (SHEET 1 OF 3)
DISPLAYS RANDOM LINES OF BEARING (SHEET 2 OF 3)
DISPLAYS RANDOM LINES OF BEARING (SHEET 3 OF 3)
POWER LAMP THAT DOES NOT LIGHT - TM-11-5825-278-12-20172
NO RF SIGNAL ON CRT
NO TRACE ON CRT - TM-11-5825-278-12-20174
Section III. OPERATOR MAINTENANCE PROCEDURES
Removing and replacing df processor fuse (sheet 1 of 3)
Removing and replacing df processor fuse (sheet 2 of 3)
Removing and replacing df processor fuse (sheet 3 of 3)
Removing and replacing D-cell insert fuse (sheet 1 of 3)
Removing and replacing D-cell insert fuse (sheet 2 of 3)
Removing and replacing D-cell insert fuse (sheet 3 of 3)
Removing and Replacing Batteries.
Section IV. MAINTENANCE OF AUXILIARY EQUIPMENT
Chapter 4. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS - TM-11-5825-278-12-20185
Section II. SERVICE UPON RECEIPT - TM-11-5825-278-12-20186
Section III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
SYMPTOM INDEX - TM-11-5825-278-12-20188
TROUBLESHOOTING PROCEDURES - TM-11-5825-278-12-20189
RECEIVER POWER LAMP THAT DOES NOT LIGHT
FREQUENCY MHz DISPLAY THAT DOES NOT LIGHT - TM-11-5825-278-12-20191
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER - TM-11-5825-278-12-20192
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20193
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20194
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20195
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20196
NO AUDIO AND NO INDICATION ON SIGNAL STR METER WHEN HIGH BAND IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN LOW BAND IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER IN ONE OR TWO IF BANDWIDTH kHz POSITIONS
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN USB/CW OR LSB/CW S SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN AM IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN FM IS SELECTED
NO AUDIO WHEN SPEAKER ASSEMBLY IS USED
Changes frequency when DAFC lock switch is set to LOCK position
FREQUENCY MHz DISPLAY THAT LOCKS AT A PRESET FREQUENCY
FREQUENCY DISPLAY THAT HAS UNSTABLE DIGITS
DF PROCESSOR POWER LAMP DOES NOT LIGHT (SHEET 1 OF 2)
DF PROCESSOR POWER LAMP DOES NOT LIGHT (SHEET 2 OF 2)
No line of bearing display - TM-11-5825-278-12-20209
Displays incorrect lines of bearing
DISPLAYS RANDOM LINES OF BEARING (SHEET 1 OF 2)
DISPLAYS RANDOM LINES OF BEARING (SHEET 2 OF 2)
ZERO ADJ CONTROL SET A 000 OR 180 DEGREE BEARING
NO CIRCULAR DISPLAY WHEN SET TO GATED MODE
RANDOM LINES OF BEARING WHEN SET TO HOLD MODE.
RANDOM LINES OF BEARING IN ONE OR TWO IF BANDWIDTHS positions
CIRCULAR DISPLAY THAT DOES NOT TURN OFF WHEN THRESHOLD IS ADJUSTED
SIGNAL MONITOR POWER LAMP DOES THAT NOT LIGHT
NO RF SIGNAL ON CRT (SHEET 1 OF 3)
NO RF SIGNAL DISPLAY ON CRT (SHEET 2 OF 3)
No RF SIGNAL DISPLAY ON CRT (SHEET 3 OF 3)
No trace on crt - TM-11-5825-278-12-20222
SECTION V. ORGANIZATIONAL MAINTENANCE
MAINTENANCE PROCEDURES
Removing and replacing df processor
Removing and replacing df processor (CONT) - TM-11-5825-278-12-20226
Removing and replacing df processor (CONT) - TM-11-5825-278-12-20227
Removing and replacing receiver
Removing and replacing speaker assembly
Removing and Replacing D-Cell Insert
Removing and Installing Tuner Assemblies.
Removing receiver cover
Removing receiver cover (cont)
Removing tuner assembly
Removing tuner assembly (cont) - TM-11-5825-278-12-20235
Removing tuner assembly (cont) - TM-11-5825-278-12-20236
Removing tuner assembly (cont) - TM-11-5825-278-12-20237
Removing tuner assembly (cont) - TM-11-5825-278-12-20238
Installing tuner assembly
Installing tuner assembly (cont) - TM-11-5825-278-12-20240
Installing tuner assembly (cont) - TM-11-5825-278-12-20241
Installing tuner assembly (cont) - TM-11-5825-278-12-20242
Replacing receiver cover
Removing and replacing BAND MHz plate
Removing and replacing BAND MHz plate (cont)
Verify Df Processor Alinement Using Anqle Simulator
Preparing DF Processor for Testing
MAINTENANCE PROCEDURES - Continued
TESTING BATTERY PACK PLUG
Section VI. PREPARING EQUIPMENT FOR STORAGE OR SHIPMENT
PACKING INSTRUCTIONS
Packing the Tuner Assembly
ADMINISTRATIVE STORAGE OF EQUIPMENT
Appendix A. REFERENCES - TM-11-5825-278-12-20255
REFERENCES (cont) - TM-11-5825-278-12-20256
Appendix B. Maintenance Allocation Chart - TM-11-5825-278-12-20257
Maintenance Functions - TM-11-5825-278-12-20258
Column Entries - TM-11-5825-278-12-20259
Section II. MAINTENANCE ALLOCATION CHART - TM-11-5825-278-12-20260
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20261
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20262
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20263
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20264
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20265
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20266
Section III. TOOL AND TEST EQUIPMENT REQUIREMENTS - TM-11-5825-278-12-20267
Section III. TOOL AND TEST EQUIPMENT REQUIREMENTS - Continued
Section IV. REMARKS - TM-11-5825-278-12-20269
Section IV. REMARKS - Continued
Appendix C. COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST
Section II. COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST
Section III. BASIC ISSUE ITEMS - TM-11-5825-278-12-20273
APPENDIX D
Section II. ADDITIONAL AUTHORIZATION LIST - TM-11-5825-278-12-20276
Appendix E. EXPENDABLE SUPPLIES AND MATERIAL LIST
Section II. EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-5825-278-12-20278
TM-11-5825-278-12-2 Radio Receiver Direction Finder Set AN/PRD-11 (NSN 5825-01-188-3435) Manual
Chapter 1. INTRODUCTION - TM-11-5825-278-12-20011
MAINTENANCE FORMS, RECORDS AND REPORTS - TM-11-5825-278-12-20012
NOMENCLATURE CROSS-REFERENCE LIST - TM-11-5825-278-12-20013
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS
LIST OF ABBREVIATIONS
GLOSSARY - TM-11-5825-278-12-20016
GLOSSARY - Continued
Section II. EQUIPMENT DESCRIPTION - TM-11-5825-278-12-20019
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-11-5825-278-12-20020
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20021
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20022
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - Continued - TM-11-5825-278-12-20023
DIFFERENCES BETWEEN MODELS - TM-11-5825-278-12-20024
EQUIPMENT DATA - TM-11-5825-278-12-20025
SAFETY, CARE AND HANDLING
TECHNICAL PRINCIPLES OF OPERATION
TYPICAL DATA FLOW
MODE OF OPERATION
Netted Operation
Chapter 2. OPERATING INSTRUCTIONS - TM-11-5825-278-12-20031
RECEIVER CONTROLS, INDICATORS AND CONNECTORS
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20033
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20034
RECEIVER CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20035
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20037
DF PROCESSOR CONTROLS, INDICATORS AND CONNECTORS - Continued - TM-11-5825-278-12-20038
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - TM-11-5825-278-12-20039
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - Continued
SIGNAL MONITOR CONTROLS, INDICATORS AND CONNECTORS - TM-11-5825-278-12-20041
ANTENNA CONNECTORS AND INDICATOR
Section II. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
ROUTINE CHECKS AND SERVICES
Section III. OPERATION UNDER USUAL CONDITIONS - TM-11-5825-278-12-20045
SITE SELECTION
Terrain Considerations
SITE SELECTION - Continued
Signal Path Considerations
IMPROPER SITE LOCATIONS
ASSEMBLY AND PREPARATION FOR USE
Setting Up the Tripod (sheet 1 of 3)
Setting Up the Tripod (sheet 2 of 3)
Setting Up the Tripod (sheet 3 of 3)
Installing DF Antenna Mast and Elements (sheet 1 of 6)
Installing DF Antenna Mast and Elements (sheet 2 of 6)
Installing DF Antenna Mast and Elements (sheet 3 of 6)
Installing DF Antenna Mast and Elements (sheet 4 of 6)
Installing DF Antenna Mast and Elements (sheet 5 of 6)
Installing DF Antenna Mast and Elements (sheet 6 of 6)
Cabling Antenna (sheet 1 of 5)
Cabling Antenna (sheet 2 of 5)
Cabling Antenna (sheet 3 of 5)
Cabling Antenna (sheet 4 of 5)
Cabling Antenna (sheet 5 of 5)
Orienting and Raising Antenna (sheet 1 of 7)
Orienting and Raising Antenna (sheet 2 of 7)
Orienting and Raising Antenna (sheet 3 of 7)
Orienting and Raising Antenna (sheet 4 of 7)
Orienting and Raising Antenna (sheet 5 of 7)
Orienting and Raising Antenna (sheet 6 of 7)
Orienting and Raising Antenna (sheet 7 of 7)
Battery Installation.
BA-4386/PRC-25 Battery Pack Installation (sheet 1 of 3)
BA-4386/PRC-25 Battery Pack Installation (sheet 2 of 3)
BA-4386/PRC-25 Battery Pack Installation (sheet 3 of 3)
D-Cell Battery Installation (sheet 1 of 4)
D-Cell Battery Installation (sheet 2 of 4)
D-Cell Battery Installation (sheet 3 of 4)
D-Cell Battery Installation (sheet 4 of 4)
Unit Set Up
Stacking Units (sheet 1 of 3)
Stacking Units (sheet 2 of 3)
Stacking Units (sheet 3 of 3)
Cabling Units (sheet 1 of 7)
Cabling Units (sheet 2 of 7)
Cabling Units (sheet 3 of 7)
Cabling Units (sheet 4 of 7)
Cabling Units (sheet 5 of 7)
Cabling Units (sheet 6 of 7)
Cabling Units (sheet 7 of 7)
INITIAL ADJUSTMENTS
Powering Up Receivers (sheet 1 of 2)
Powering Up Receivers (sheet 2 of 2)
Powering Up Processor (sheet 1 of 2)
Powering Up Processor (sheet 2 of 2)
Powering Up Signal Monitor (sheet 1 of 2)
Powering Up Signal Monitor (sheet 2 of 2)
Unit Control Settings.
Receiver Control Settings (sheet 1 of 5)
Receiver Control Settings (sheet 2 of 5)
Receiver Control Settings (sheet 3 of 5)
Receiver Control Settings (sheet 4 of 5)
Receiver Control Settings (sheet 5 of 5)
DF Processor Control Settings (sheet 1 of 3)
DF Processor Control Settings (sheet 2 of 3)
DF Processor Control Settings (sheet 3 of 3)
Signal Monitor Control Settings (sheet 1 of 4)
Signal Monitor Control Settings (sheet 2 of 4)
Signal Monitor Control Settings (sheet 3 of 4)
Signal Monitor Control Settings (sheet 4 of 4)
OPERATING PROCEDURES - TM-11-5825-278-12-20113
Tuning to a Frequency (sheet 1 of 8)
Tuning to a Frequency (sheet 2 of 8)
Tuning to a Frequency (sheet 3 of 8)
Tuning to a Frequency (sheet 4 of 8)
Tuning to a Frequency (sheet 5 of 8)
Tuning to a Frequency (sheet 6 of 8)
Tuning to a Frequency (sheet 7 of 8)
Tuning to a Frequency (sheet 8 of 8)
Monitoring the Signal and Reporting Transmission Data (sheet 1 of 2)
Monitoring the Signal and Reporting Transmission Data (sheet 2 of 2)
Searching a Frequency Range
Searching a Frequency Range (cont) - TM-11-5825-278-12-20125
Searching a Frequency Range (cont) - TM-11-5825-278-12-20126
Searching a Frequency Range (cont) - TM-11-5825-278-12-20127
Responding To a Df Flash
Responding To a Df Flash (cont) - TM-11-5825-278-12-20129
Responding To a Df Flash (cont) - TM-11-5825-278-12-20130
Responding To a Df Flash (cont) - TM-11-5825-278-12-20131
PREPARATION FOR MOVEMENT - TM-11-5825-278-12-20132
Powering down units
Disconnecting cables (sheet 1 of 4)
Disconnecting cables (sheet 2 of 4)
Disconnecting cables (sheet 3 of 4)
Disconnecting cables (sheet 4 of 4)
Tearing down units (sheet 1 of 3)
Tearing down units (sheet 2 of 3)
Tearing down units (sheet 3 of 3)
Tearing Down Df Antenna
Lowering df antenna
Disconnecting df antenna cables (sheet 1 of 3)
Disconnecting df antenna cables (sheet 2 of 3)
Disconnecting df antenna cables (sheet 3 of 3)
Removing df antenna mast and elements (sheet 1 of 5)
Removing df antenna mast and elements (sheet 2 of 5)
Removing df antenna mast and elements (sheet 3 of 5)
Removing df antenna mast and elements (sheet 4 of 5)
Removing df antenna mast and elements (sheet 5 of 5)
Tearing down tripod (sheet 1 of 2)
Tearing down tripod (sheet 2 of 2)
OPERATION OF AUXILIARY EQUIPMENT
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
OPERATION IN UNUSUAL WEATHER
FORDING
Chapter 3. OPERATOR MAINTENANCE INSTRUCTIONS
SYMPTOM INDEX - TM-11-5825-278-12-20158
TROUBLESHOOTING PROCEDURES - TM-11-5825-278-12-20159
POWER LAMP THAT DOES NOT LIGHT - TM-11-5825-278-12-20160
FREQUENCY MHZ DISPLAY THAT DOES NOT LIGHT - TM-11-5825-278-12-20161
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER - TM-11-5825-278-12-20162
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20163
FREOUENCY MHz DISPLAY THAT HAS UNSTABLE DIGITS
POWER LAMP THAT DOES NOT LIGHT (SHEET 1 OF 2)
POWER LAMP THAT DOES NOT LIGHT (SHEET 2 OF 2)
NO LINE OF BEARING DISPLAY - TM-11-5825-278-12-20167
DISPLAYS INCORRECT LINE OF BEARING
DISPLAYS RANDOM LINES OF BEARING (SHEET 1 OF 3)
DISPLAYS RANDOM LINES OF BEARING (SHEET 2 OF 3)
DISPLAYS RANDOM LINES OF BEARING (SHEET 3 OF 3)
POWER LAMP THAT DOES NOT LIGHT - TM-11-5825-278-12-20172
NO RF SIGNAL ON CRT
NO TRACE ON CRT - TM-11-5825-278-12-20174
Section III. OPERATOR MAINTENANCE PROCEDURES
Removing and replacing df processor fuse (sheet 1 of 3)
Removing and replacing df processor fuse (sheet 2 of 3)
Removing and replacing df processor fuse (sheet 3 of 3)
Removing and replacing D-cell insert fuse (sheet 1 of 3)
Removing and replacing D-cell insert fuse (sheet 2 of 3)
Removing and replacing D-cell insert fuse (sheet 3 of 3)
Removing and Replacing Batteries.
Section IV. MAINTENANCE OF AUXILIARY EQUIPMENT
Chapter 4. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS - TM-11-5825-278-12-20185
Section II. SERVICE UPON RECEIPT - TM-11-5825-278-12-20186
Section III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
SYMPTOM INDEX - TM-11-5825-278-12-20188
TROUBLESHOOTING PROCEDURES - TM-11-5825-278-12-20189
RECEIVER POWER LAMP THAT DOES NOT LIGHT
FREQUENCY MHz DISPLAY THAT DOES NOT LIGHT - TM-11-5825-278-12-20191
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER - TM-11-5825-278-12-20192
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20193
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20194
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20195
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER (cont) - TM-11-5825-278-12-20196
NO AUDIO AND NO INDICATION ON SIGNAL STR METER WHEN HIGH BAND IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN LOW BAND IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER IN ONE OR TWO IF BANDWIDTH kHz POSITIONS
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN USB/CW OR LSB/CW S SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN AM IS SELECTED
NO AUDIO AND NO SIGNAL INDICATION ON SIGNAL STR METER WHEN FM IS SELECTED
NO AUDIO WHEN SPEAKER ASSEMBLY IS USED
Changes frequency when DAFC lock switch is set to LOCK position
FREQUENCY MHz DISPLAY THAT LOCKS AT A PRESET FREQUENCY
FREQUENCY DISPLAY THAT HAS UNSTABLE DIGITS
DF PROCESSOR POWER LAMP DOES NOT LIGHT (SHEET 1 OF 2)
DF PROCESSOR POWER LAMP DOES NOT LIGHT (SHEET 2 OF 2)
No line of bearing display - TM-11-5825-278-12-20209
Displays incorrect lines of bearing
DISPLAYS RANDOM LINES OF BEARING (SHEET 1 OF 2)
DISPLAYS RANDOM LINES OF BEARING (SHEET 2 OF 2)
ZERO ADJ CONTROL SET A 000 OR 180 DEGREE BEARING
NO CIRCULAR DISPLAY WHEN SET TO GATED MODE
RANDOM LINES OF BEARING WHEN SET TO HOLD MODE.
RANDOM LINES OF BEARING IN ONE OR TWO IF BANDWIDTHS positions
CIRCULAR DISPLAY THAT DOES NOT TURN OFF WHEN THRESHOLD IS ADJUSTED
SIGNAL MONITOR POWER LAMP DOES THAT NOT LIGHT
NO RF SIGNAL ON CRT (SHEET 1 OF 3)
NO RF SIGNAL DISPLAY ON CRT (SHEET 2 OF 3)
No RF SIGNAL DISPLAY ON CRT (SHEET 3 OF 3)
No trace on crt - TM-11-5825-278-12-20222
SECTION V. ORGANIZATIONAL MAINTENANCE
MAINTENANCE PROCEDURES
Removing and replacing df processor
Removing and replacing df processor (CONT) - TM-11-5825-278-12-20226
Removing and replacing df processor (CONT) - TM-11-5825-278-12-20227
Removing and replacing receiver
Removing and replacing speaker assembly
Removing and Replacing D-Cell Insert
Removing and Installing Tuner Assemblies.
Removing receiver cover
Removing receiver cover (cont)
Removing tuner assembly
Removing tuner assembly (cont) - TM-11-5825-278-12-20235
Removing tuner assembly (cont) - TM-11-5825-278-12-20236
Removing tuner assembly (cont) - TM-11-5825-278-12-20237
Removing tuner assembly (cont) - TM-11-5825-278-12-20238
Installing tuner assembly
Installing tuner assembly (cont) - TM-11-5825-278-12-20240
Installing tuner assembly (cont) - TM-11-5825-278-12-20241
Installing tuner assembly (cont) - TM-11-5825-278-12-20242
Replacing receiver cover
Removing and replacing BAND MHz plate
Removing and replacing BAND MHz plate (cont)
Verify Df Processor Alinement Using Anqle Simulator
Preparing DF Processor for Testing
MAINTENANCE PROCEDURES - Continued
TESTING BATTERY PACK PLUG
Section VI. PREPARING EQUIPMENT FOR STORAGE OR SHIPMENT
PACKING INSTRUCTIONS
Packing the Tuner Assembly
ADMINISTRATIVE STORAGE OF EQUIPMENT
Appendix A. REFERENCES - TM-11-5825-278-12-20255
REFERENCES (cont) - TM-11-5825-278-12-20256
Appendix B. Maintenance Allocation Chart - TM-11-5825-278-12-20257
Maintenance Functions - TM-11-5825-278-12-20258
Column Entries - TM-11-5825-278-12-20259
Section II. MAINTENANCE ALLOCATION CHART - TM-11-5825-278-12-20260
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20261
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20262
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20263
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20264
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20265
Section II. MAINTENANCE ALLOCATION CHART - Continued - TM-11-5825-278-12-20266
Section III. TOOL AND TEST EQUIPMENT REQUIREMENTS - TM-11-5825-278-12-20267
Section III. TOOL AND TEST EQUIPMENT REQUIREMENTS - Continued
Section IV. REMARKS - TM-11-5825-278-12-20269
Section IV. REMARKS - Continued
Appendix C. COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST
Section II. COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST
Section III. BASIC ISSUE ITEMS - TM-11-5825-278-12-20273
APPENDIX D
Section II. ADDITIONAL AUTHORIZATION LIST - TM-11-5825-278-12-20276
Appendix E. EXPENDABLE SUPPLIES AND MATERIAL LIST
Section II. EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-5825-278-12-20278
TM-11-5825-278-12-2 Radio Receiver Direction Finder Set AN/PRD-11 (NSN 5825-01-188-3435) Manual
