AN/PRC-138 TRAINING OUTLINE

AN/PRC-138 TRAINING OUTLINE
AN/PRC-138 MANPACK FEATURES/PRC-138 MANPACK FEURES WAKEUP ACTIVE SQUELCH (RWAS) DATA INTERFACE/ REMOTE CONTROL RADIO ASSEMBLY CONTROLS AND DISPLAYS SSB OPERATION BASIC PROGRAMMING AUTOMATIC LINK ESTABLISHMENT FUNDAMENTALS, PROGRAMMING, AND OPERATION

RECONNAISSANCE & SURVEILLANCE LEADER COURSE
RECONNAISSANCE AND SURVEILLANCE COMMUNICATIONS

AN/PRC-138 MANPACK FEATURES
FREQUENCY RANGE……………………………………1.6 TO 60 MHz MODES………………………………………….AM, USB, LSB, CW, FM CHANNELS………..100 VIA KEYPAD, 1-9 VIA SELECTOR SWITCH POWER OUTPUT……………….1, 5, 20 WATTS (1, 5, 10 WATTS FM) BUILT-IN MODEM - DATA INTERFACE BUILT-IN TEST…………….SELF TEST, BATT, SOFTWARE , VSWR ALE ENCRYPTION (NON MIL-STD) ECCM (EP) FREQUENCY HOPPING

AN/PRC-138 MANPACK FEATURES (CONT.)
SLEEP MODE (LOW POWER CONSUMPTION SECURITY,ZEROIZE FCTN, OPERATOR/PROGRAMMING LOCK PASSWORD PROTECTION (DEFAULT ) POWER REQUIREMENTS...MANPACK 24VDC, VEHICULAR 24VDC (12VDC WITH RF-5052PS 12V/24V DC CONVERTER)

ROBUST ACTIVE WAKE UP SQUELCH
AN/PRC-138 ROBUST ACTIVE WAKE UP SQUELCH THE RWAS FUNCTION PROVIDES ENHANCED PERFORMANCE WHEN THE RADIO IS OPERATED WITH ANOTHER RWAS COMPATIBLE RADIO. THIS FUNCTION HAS TWO ESSENTIAL CAPABILITIES: 1. SSB STANDBY MODE: RADIO ENTERS “SLEEP” MODE OF LOW BATTERY CONSUMPTION. PERIODICALLY IT WILL LISTEN FOR A DIGITAL BURST FROM ANOTHER RWAS UNIT TO WAKE IT UP. 2. DIGITAL SQUELCH FUNCTION: AUDIO IS MUTED IN THE HANDSET UNTIL IT RECEIVES A DIGITAL BURST FROM ANOTHER RWAS UNIT.

DATA INTERFACE / REMOTE CONTROL
AN/PRC-138 DATA INTERFACE / REMOTE CONTROL DATA INTERFACE: THE PRC-138 CAN BE CONNECTED TO A WIDE VARIETY OF DATA DEVICES VIA THE DATA INTERFACE CONTAINED ON THE DATA CONNECTOR J2. REMOTE CONTROL: THE PRC-138 CAN BE CONNECTED TO AN ASYNCHRONOUS REMOTE CONTROL LIKE A PERSONAL COMPUTER VIA THE REMOTE INTERFACE CONTAINED ON THE DATA CONNECTOR J2. A MS-DOS SOFTWARE PROGRAM CALLED FALCOM IS PROVIDED TO REMOTE CONTROL THE RADIO. THE REMOTE INTERFACE CAN ALSO BE USED TO SEND DATA USING THE RADIO’S INTERNAL MODEM. THIS ALLOWS A SINGLE COMPUTER TO BOTH CONTROL THE RADIO AND ACT AS THE DATA DEVICE.

AN/PRC-138 RADIO ASSEMBLY INSERT BATTERIES IN BATTERY CASE
PLACE RADIO ON TOP OF BATTERY CASE CONNECT HANDSET TO AUDIO CONNECTOR CONNECT ANTENNA BASE TO THE ANT CONNECTOR

AN/PRC-138 CONTROLS AND DISPLAYS FRONT PANEL

AN/PRC-138 CONTROLS AND DISPLAYS KEYPAD SELECTS THE ITEM TO CHANGE
SCROLLS THROUGH MENU SELECTIONS CONTROLS BACKLIGHT AND CONTRAST LIGHT INITIATES CALL SEQUENCE IN ALE AND HOP MODES CALL CLEARS PROGRAMMING ENTRIES AND CONTROLS SCAN/STOP IN ALE. ALSO GENERATES HOPSET AND HALTS A SYNC REQUEST IN HOPPING. CLEAR ENTERS A PROGRAM PARAMETER CHANGE ENTER

AN/PRC-138 CONTROLS AND DISPLAYS KEYPAD (CONT.) 1 2 3 4 5 6 7 8 9
ADJUSTS TX POWER, BFO, VIEW LQA SCORES, RETUNES ANTENNA COUPLER AND VIEWS TIME OPT ALLOWS OPERATOR TO PROGRAM CHANNEL AND CONFIGURATION PARAMETERS FROM A SEQUENCE OF MENUS PRGM ABC DEF GHI 1 2 3 ENTERS NUMERIC AND ALPHANUMERIC DATA. PRESSING THE KEY MULTIPLE TIMES SCROLLS THROUGH THE NUMBER AND LETTERS PRINTED ON THE KEY. I.E. PRESSING THE NUMBER 5 KEY THREE TIMES SELECTS THE LETTER N. JKL MNO PQR 4 5 6 STU VWX YZ? 7 8 9 SPACE

AN/PRC-138 . . CONTROLS AND DISPLAYS RECEIVE DISPLAY R05 - 06.9550 [
CHANNEL RX FREQUENCY SIGNAL STRENGTH (S-METER) CH FREQ MHz S DB . . R [ USB OFF CLR ON MODE DATA ENCR SQ MODE O USB O LSB 0 AME 0 CW O FM SQUELCH DATA ENCRYPTION

AN/PRC-138 . CONTROLS AND DISPLAYS TRANSMIT DISPLAY T05 - 06.9550 [
CHANNEL TX FREQUENCY POWER METER CH FREQ MHz S DB . T [ MIC OFF CLR ON MODE DATA ENCR SQ KEY SOURCE o MIC o DATA o AUX SQUELCH DATA ENCRYPTION

NOTE THAT THE FRONT PANEL IS NOT OPERATIONAL IN REMOTE.
AN/PRC-138 CONTROLS AND DISPLAYS REMOTE DISPLAY WHEN THE FUNCTION CONTROL IS PLACED IN THE REMOTE POSITION THE DISPLAY WILL SHOW: CH FREQ MHz S DB . T [ - REMOTE - MODE DATA ENCR SQ NOTE THAT THE FRONT PANEL IS NOT OPERATIONAL IN REMOTE.

AN/PRC-138 CONTROLS AND DISPLAYS VERSION TEST BATTERY VSWR SELF TEST
TO PERFORM THE SELF TEST FUNCTION: PLACE THE FUNCTION CONTROL IN THE TEST POSITION. SELECT TEST ON THE DISPLAY BY USING THE KEYPAD ARROW KEYS UNTIL TEST IS BLINKING. VERSION TEST BATTERY VSWR PRESS THE ENTER KEY ON THE KEYPAD. IF THE TEST COMPLETED WITH NO ERRORS FOUND, THE DISPLAY WILL SHOW:

AN/PRC-138 CONTROLS AND DISPLAYS SELF TEST DONE ** NO ERRORS **
IF A FAULT IS FOUND, THE DISPLAY WILL SHOW THE SUSPECTED FAULTY MODULE NUMBER AND FAULT NUMBER. RETURN THE FUNCTION CONTROL TO THE DESIRED FUNCTION AFTER SELF TESTING IS COMPLETED.

AN/PRC-138 CONTROLS AND DISPLAYS TEST VERSION VSWR BATTERY VERSION
TO EXAMINE THE VERSION OF THE FIRMWARE INSTALLED IN THE RADIO: PLACE THE FUNCTION CONTROL IN THE TEST POSITION. SELECT VERSION ON THE DISPLAY BY USING THE LEFT/RIGHT ARROW KEYS UNTIL VERSION IS BLINKING. TEST VERSION VSWR BATTERY PRESS THE ENTER KEY ON THE KEYPAD. THE DISPLAY WILL SHOW A MODULE NUMBER AND REVISION NUMBER. USE THE UP/DOWN ARROW KEYS TO SCROLL THROUGH THE DIFFERENT MODULES. TROUBLESHOOTING OF THE RADIO IS HELPED BY REPORTING THE REVISION NUMBERS TO THE HARRIS TECHNICAL SUPPORT PERSONNEL. RETURN THE FUNCTION CONTROL TO THE DESIRED FUNCTION AFTER REVIEWING THE VERSIONS IS COMPLETED.

AN/PRC-138 CONTROLS AND DISPLAYS TEST VERSION VSWR BATTERY VSWR
THE VSWR (VOLTAGE STANDING WAVE RATIO) MEASUREMENT DISPLAYS VSWR AS CALCULATED FROM THE FORWARD AND REFLECTED POWER AT THE OUTPUT OF THE RADIO OR POWER AMPLIFIER. IT ALSO DISPLAYS THE POWER, IN WATTS, BEING TRANSMITTED. TO TEST THE VSWR ON THE RADIO: PLACE THE FUNCTION CONTROL IN THE TEST POSITION. SELECT VSWR ON THE DISPLAY BY USING THE LEFT/RIGHT ARROW KEYS UNTIL VSWR IS BLINKING. TEST VERSION VSWR BATTERY

AN/PRC-138 CONTROLS AND DISPLAYS POWER 20 WATT VSWR 1.1 : 1
VSWR (CONT.) THE DISPLAY ASKS WHICH FREQUENCY YOU WISH TO PERFORM THE VSWR TEST ON. PRESS THE ENTER KEY ON THE KEYPAD. NOTE: THE RADIO WILL TRANSMIT DURING THE VSWR TEST. PRECAUTIONS SHOULD BE TAKEN. THE DISPLAY WILL SHOW THE POWER OUT AND THE VSWR FOR THE FREQUENCY SELECTED. POWER WATT VSWR : 1 RETURN THE FUNCTION CONTROL TO THE DESIRED FUNCTION AFTER THE VSWR TEST IS COMPLETED.

AN/PRC-138 CONTROLS AND DISPLAYS POWER 20 WATT VSWR 1.1 : 1
BATTERY THE BATTERY MEASUREMENT DISPLAYS THE STATUS OF THE BATTERY VOLTAGE AND CHARGE LEVELS. THE SELECTIONS ARE FULL, MEDIUM, AND LOW AND VARY FROM 28.0 TO 20.0 VOLTS. TO TEST THE BATTERY IN THE RADIO: PLACE THE FUNCTION CONTROL IN THE TEST POSITION. SELECT BATTERY DISPLAY BY USING THE LEFT/RIGHT ARROW KEYS UNTIL BATTERY IS BLINKING AND PRESS THE ENTER KEY. POWER WATT VSWR : 1 THE DISPLAY WILL SHOW THE BATTERY STATUS AND VOLTAGE. BATTERY V FULL RETURN THE FUNCTION CONTROL TO THE DESIRED FUNCTION AFTER THE BATTERY TEST IS COMPLETED.

AN/PRC-138 CONTROLS AND DISPLAYS ZEROIZE FUNCTION
THE ZEROIZE FUNCTION WILL ERASE ALL THE PROGRAMMED PARAMETERS AND OPTION SETTINGS AND RETURNS THE RADIO TO THE DEFAULT CONDITIONS. TO ZEROIZE THE RADIO: PLACE THE FUNCTION CONTROL IN THE ZERO POSITION. NOTE THE KNOB MUST BE PULLED OUT TO REACH THE ZERO POSITION. NOTE: ZEROIZE MUST BE USED WITH CAUTION. SETTINGS CANNOT BE RECOVERED. A PASSWORD PROTECTION SYSTEM PREVENTS UNAUTHORIZED PERSONNEL FROM SELECTING OR CHANGING THE PROGRAMMED PARAMETERS. THE REMOTE CONTROL PARAMETERS ARE NOT ZEROIZED, THEY STAY AT THE LAST CONFIGURED SETTINGS.

AN/PRC-138 CONTROLS AND DISPLAYS LIGHT CONTRAST [MAX]
LIGHT KEY FUNCTIONS THE LIGHT KEY CONTROLS THE BACKLIGHT INTENSITY AND THE CONTRAST OF THE DISPLAY. LIGHT PRESS THE LIGHT KEY AND THE DISPLAY SHOWS: LIGHT CONTRAST [MAX] THE LEFT/RIGHT ARROW KEYS TO SELECT EITHER LIGHT OR CONTRAST. USE THE UP/DOWN ARROW KEYS TO CHANGE THE SETTINGS. THE USE DISPLAY WILL THEN PROMPT THE USER FOR THE LIGHT TO BE OFF OR MOMENTARY. USE THE UP/DOWN ARROW KEYS TO SELECT THE DESIRED LIGHT SETTING. PRESSING THE LIGHT KEY AGAIN RETURNS THE RADIO TO NORMAL OPERATION.

AN/PRC-138 SSB OPERATION PASSWORD
SINGLE SIDEBAND (SSB) OR SINGLE CHANNEL MODE ALLOWS OPERATION OF THE PRC-138 FROM THE PRE-PROGRAMMED CHANNELS OR FROM DISCRETE FREQUENCIES USING A SCRATCH-PAD CHANNEL. PASSWORD THE AN/PRC-138 RADIO CAN BE PASSWORD PROTECTED TO PREVENT UNAUTHORIZED USAGE. A NUMBER OF OPERATOR AND PROGRAMMING FUNCTIONS CAN BE ENABLED (LOCKED) OR DISABLED (UNLOCKED). THE RADIO RETURNS TO THE FACTORY SET DEFAULT PASSWORD WHEN ZEROIZED. TO ENABLE OR DISABLE THE RADIO’S FUNCTIONS, THE USER MUST ENTER THE CORRECT PASSWORD. A ROADMAP OF THE PROGRAMMING MENUS THAT CAN BE LOCKED OUT CAN BE FOUND IN THE APPENDIX OF THE AN/PRC-138 OPERATOR’S TRAINING GUIDE.

AN/PRC-138 SSB OPERATION PASSWORD (CONT)
1.. PRESS THE PRGM KEY ON THE KEYPAD. 2. SELECT SECURE IN THE DISPLAY USING THE ARROW KEYS, AND PRESS ENTER. 3. SELECT PASSWORD USING THE ARROW KEYS AND PRESS ENTER. 4. SELECT SET NEW PASSWORD TO CHANGE THE PASSWORD. 5. PRESS THE PRGM KEY TO RETURN TO NORMAL OPERATION. CHANGING THE LOCK OR UNLOCKED PARAMETERS: 1. REPEAT STEPS 1 AND 2 ABOVE. 2. SELECT LOCKOUT TO CHANGE THE PROGRAMMING LOCKOUTS, OR SELECT OP-LOCK TO CHANGE THE OPERATOR LOCKOUTS. PRESS THE ENTER KEY. 3. FROM THE MENUS, USE THE UP/DOWN ARROW KEYS TO SELECT YES OR NO TO ALLOW OR PREVENT THE USER FROM CHANGING THAT ITEM. PRESS ENTER TO RECORD YOUR CHOICE. THE NEXT ITEM WILL THEN BE DISPLAYED. 4. PRESS THE PRGM KEY TO RETURN TO NORMAL OPERATION. PASSWORD (CONT)

AN/PRC-138 . . SSB OPERATION R05 - 06.9550 [ USB OFF CLR ON
SELECTING A CHANNEL THE OPERATOR CAN USE THE CHANNEL KNOB TO SELECT CHANNELS 1-9 DIRECTLY. ALL THE CHANNELS 00 THROUGH 99 CAN BE SELECTED BY USING THE KEYPAD. FROM THE RECEIVE DISPLAY, USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE CHANNEL FIELD (I.E. R05 WILL BE BLINKING). . . R [ USB OFF CLR ON USE THE ALPHANUMERIC KEYPAD TO SELECT THE CHANNEL NUMBER OR USE THE UP/DOWN ARROW KEYS TO SCROLL THROUGH THE CHANNELS. PRESS THE ENTER KEY TO CHOOSE SELECTED CHANNEL. NOTE: A CHANNEL CAN BE PROGRAMMED TO BE RECEIVE ONLY. THIS ALLOWS A USER TO MONITOR A FREQUENCY BUT NOT TRANSMIT ON THAT FREQUENCY. IF THE RADIO IS KEYED ON A RECEIVE ONLY CHANNEL, THE RADIO WILL SOUND A WARNING TONE IN THE HANDSET.

AN/PRC-138 . . SSB OPERATION R00 - 06.9550 [ USB OFF CLR ON
SCRATCH PAD CHANNEL WITH THE CHANNEL KNOB IN THE M POSITION, CHANNEL 00 CAN BE SELECTED AS A SCRATCH PAD CHANNEL. A SCRATCH PAD CHANNEL CAN SELECT AN OPERATING MODE, DATA PRESET, AND ENCRYPTION KEY. IT ALLOWS THE OPERATOR TO QUICKLY ENTER A RECEIVE AND TRANSMIT CHANNEL WITHOUT GOING TO THE PROGRAM MENUS. CHANGE THE SCRATCH PAD FREQUENCY: SELECT THE M POSITION ON THE CHANNEL KNOB. USE THE ARROW KEYS OR KEYPAD TO SELECT CHANNEL 00. PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE FREQUENCY FIELD. . . R [ CONT. USB OFF CLR ON

SCRATCH PAD CHANNEL (CONT.)
AN/PRC-138 SSB OPERATION SCRATCH PAD CHANNEL (CONT.) USE THE UP/DOWN ARROW KEYSOR THE KEYPAD TO ENTER THE DESIRED RECEIVE (RX) FREQUENCY. THE POSITION OF THE DIGIT THAT CAN BE ENTERED BLINKS. USE THE CLEAR KEY TO CORRECT ANY MISTAKES. PRESS THE ENTER KEY TO CHOOSE THE ENTERED RECEIVE FREQUENCY. USE THE UP/DOWN ARROW KEYS OR THE KEYPAD TO ENTER THE DESIRED TRANSMIT (TX) FREQUENCY. THE POSITION OF THE DIGIT THAT CAN BE ENTERED BLINKS. USE THE CLEAR KEY TO CORRECT ANY MISTAKES. PRESS THE ENTER KEY TO CHOOSE THE ENTERED TRANSMIT FREQUENCY. NOTE: ENTER LEADING ZEROS FOR FREQUENCIES BELOW 10 MHz, ( FOR MHz).

SELECTING A TEMPORARY OPERATING MODE
AN/PRC-138 SSB OPERATION SELECTING A TEMPORARY OPERATING MODE USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE MODE FIELD. . . R [ USB OFF CLR ON USE THE UP/DOWN ARROW KEYS TO SELECT THE DESIRED MODE: o USB o AME o FM o LSB o CW PRESS THE ENTER KEY TO CHOOSE THE SELECTED MODE. NOTE: WHEN CW OR AME MODE IS SELECTED, THE DATA PRESET AND ENCRYPTION FIELDS GO TO OFF AND CLR RESPECTIVELY, AS THEY ARE INVALID IN THESE MODES.

SELECTING A DATA PRESET
AN/PRC-138 SSB OPERATION SELECTING A DATA PRESET DATA PRESETS CONSIST OF PRESELECTED SETS OF MODERN PARAMETERS, CHOSEN AND NAMED DURING PROGRAMMING. THESE ALLOW THE OPERATOR TO QUICKLEY CONFIGURE THE RADIO’S MODEM FOR DIFFERENT DATA DEVICES OR DATA TRANSMISSION SPEEDS. THE OPERATOR MAY SELECT ANY ONE OF UP TO SEVEN PRESETS: DIGITAL VOICE(DV), ANALOG VOICE SECURITY(AVS), OR OFF. IF THE OPTION IS NOT INSTALLED THE CORRESPONDING PRESET NAME IS NOT AVAILABLE FOR SELECTION USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE DATA FIELD. . . R [ USB OFF CLR ON USE THE UP/DOWN ARROW KEYS TO SELECT THE PRESET, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED PRESET. IF A DATA PRESET IS SELECTED, THE RADIO CAN STILL BE KEYED WITH HANDSET

SELECTING AN ENCRYPTION KEY
AN/PRC-138 SSB OPERATION SELECTING AN ENCRYPTION KEY THERE ARE THREE TYPES OF ENCRYPTION THAT CAN BE PROGRAMMED INTO THE RADIO: o DIGITAL VOICE (DV) o ANALOG VOICE SECURITY (AVS) o DATA ENCRYPTION THE OPERATOR MAY SELECT KEY1 THROUGH KEY6 OR CLEAR USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE ENCR FIELD. . . R [ USB OFF CLR ON USE THE UP/DOWN ARROW KEYS TO SELECT THE DESIRED KEY, AND PRESS ENTER TO CHOOSE THE SELECTED KEY.

AN/PRC-138 . . SSB OPERATION R05 - 06.9550 [ USB OFF CLR ON SQUELCH
ALTHOUGH THE SPECIFIC SQUELCH THRESHOLD (LOW/MED/HIGH) IS DETERMINED DURING THE PROGRAMMING CYCLE, SQUELCH IS TURNED ON OR OFF FROM THE FRONT PANEL DURING OPERATION. USE THE LEFT/RIGHT ARROW KEYS TO SELECT THE SQ FIELD. . . R [ USB OFF CLR ON USE THE UP/DOWN ARROW KEYS TO TURN SQUELCH ON OR OFF.

AN/PRC-138 SSB OPERATION RETUNE POWER TIME BFO OPTION KEY FUNCTIONS
THE OPTION KEY ALLOWS THE OPERATOR TO RETUNE THE SYSTEM, CHECK THE TX POWER, CHANGE THE TIME OF DAY CLOCK, AND ADJUST THE BFO (IF ENABLED). OPT PRESS THE OPTION KEY AND THE DISPLAY SHOWS: RETUNE POWER TIME BFO RETUNE USE THE LEFT/RIGHT ARROW KEYS TO SELECT RETUNE. PRESS THE ENTER KEY TO RETUNE THE SYSTEM. NOTE: THE RADIO WILL TRANSMIT DURING THE RETUNE. PRECAUTIONS SHOULD BE TAKEN.

OPTION KEY FUNCTIONS (CONT.)
AN/PRC-138 SSB OPERATION OPTION KEY FUNCTIONS (CONT.) POWER USE THE LEFT/RIGHT ARROW KEYS TO SELECT RETUNE. PRESS THE ENTER KEY. THE OPERATOR CAN SELECT POWER OUTPUT BY CHOOSING LOW, MED, OR HIGH, USING THE UP/DOWN ARROW KEYS. WHEN KEYED THE BAR GRAPH IN THE DISPLAY WILL INDICATE THE TRANSMIT POWER LEVEL: LOW POWER MEDIUM POWER HIGH POWER PRESS THE OPTION KEY TO RETURN TO NORMAL OPERATION.

OPTION KEY FUNCTIONS (CONT.)
AN/PRC-138 SSB OPERATION OPTION KEY FUNCTIONS (CONT.) TIME USE THE LEFT/RIGHT ARROW KEYS TO SELECT TIME, AND PRESS THE ENTER KEY. THE RADIO DISPLAYS THE TIME IN 24 HOUR FORMAT. USE THE ALPHANUMERIC KEYPAD TO ENTER THE CORRECT TIME OF DAY, AND PRESS THE ENTER KEY. PRESS THE OPTION KEY TO RETURN TO NORMAL OPERATION. BFO USE THE LEFT/RIGHT ARROW KEYS TO SELECT BFO. USE THE UP/DOWN KEYS TO ADJUST THE BFO OFFSET IN 10 Hz INCREMENTS. THE DISPLAY USES A + OR - TO INDICATE THE BFO OFFSET ABOVE OR BELOW THE CHANNEL FREQUENCY. NOTE: BFO OPERATION MUST BE ENABLED THROUGH THE SSB CONFIGURATION MENU. BFO IS SUPPORTED IN USB AND LSB VOICE AND CW MODES. THE DATA FIELD MUST BE OFF.

AN/PRC-138 BASIC PROGRAMMING CHAN FILL DATA CFIG KEYS SECUR
CHANNEL PROGRAMMING PRESS THE PRGM KEY ON THE KEYPAD TO PROGRAM A CHANNEL. PRGM SELECT CHAN FROM THE DISPLAY USING THE LEFT/RIGHT ARROW KEYS, AND PRESS THE ENTER KEY. CHAN FILL DATA CFIG KEYS SECUR SELECT THE CHANNEL TO BE PROGRAMMED USING EITHER THE UP/DOWN ARROW KEYS OR ENTER THE NUMBER OF THE CHANNEL USING THE ALPHANUMERIC KEYPAD. PRESS THE ENTER KEY TO CHOOSE THE SELECTED CHANNEL. RX FREQUENCY USING THE ALPHANUMERIC KEYPAD, ENTER THE RX FREQUENCY, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED RECEIVE FREQUENCY.

CHANNEL PROGRAMMING (CONT.)
AN/PRC-138 BASIC PROGRAMMING CHANNEL PROGRAMMING (CONT.) TX FREQUENCY USING THE ALPHANUMERIC KEYPAD, ENTER THE TX FREQUENCY, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED TRANSMIT FREQUENCY. MODE USE THE UP/DOWN ARROW KEYS TO SELECT THE MODE (USB, LSB, AME, CW, FM), AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED MODULATION TYPE. AGC SPEED SELECT AN AGC SPEED: o SLOW OR MED - FOR USE WITH INTERNAL MODEM o MED OR FAST - FOR CW OPERATION OR IF STATIC IS PRESENT o DATA - FOR USE WITH AN EXTERNAL DATA MODEM USE THE UP/DOWN ARROW KEYS TO SELECT THE AGC SPEED, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED SPEED.

AN/PRC-138 BASIC PROGRAMMING CHANNEL PROGRAMMING (CONT.) IF BANDWIDTH SELECT AN IF BANDWIDTH FOR EACH CHANNEL BASED ON THE MODE AND OPTION SELECTED. THE FOLLOWING ARE THE DEFAULT BANDWIDTHS: o USB / USB kHz o AME kHz o CW kHz o MODEM kHz o DV kHz WHEN USING THE INTERNAL MODEM, OR EITHER DIGITAL VOICE OR ANALOG VOICE SECURITY IS SELECTED, THE 3.0 kHz BANDWIDTH IS AUTOMATICALLY SET. FOR VOICE AND CW, SELECT THE NORROWEST BANDWIDTH THAT PROVIDES ACCEPTABLE VOICE QUALITY AND OPERATION PERFORMANCE. USE THE UP/DOWN ARROW KEYS TO SELECT THE IF BANDWIDTH FOR THE CHANNEL, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED SPEED.

AN/PRC-138 BASIC PROGRAMMING CHANNEL PROGRAMMING (CONT.) RECEIVE ONLY A CHANNEL CAN BE PROGRAMMED TO BE RECEIVE ONLY. THIS ALLOWS THE USER TO MONITOR A FREQUENCY BUT NOT TRANSMIT ON THAT FREQUENCY. IF THE RADIO IS KEYED ON A RECEIVE ONLY CHANNEL, THE RADIO WILL SOUND A WARNING TONE IN THE HANDSET. USE THE UP/DOWN ARROW KEYS TO SELECT YES OR NO, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTED SPEED. THIS COMPLETES THE CHANNEL PROGRAMMING CYCLE. ENTER A NEW CHANNEL NUMBER TO BE PROGRAMMED, OR PRESS THE CLEAR KEY TO RETURN TO NORMAL OPERATION.

AN/PRC-138 BASIC PROGRAMMING DATA PRESETS
DATA PRESETS CONFIGURE THE INTERNAL MODEM FOR OPERATION AT A SPECIFIC DATA RATE, WITH A SPECIFIC DATA DEVICE. IF THE MODEM IS NOT INSTALLED, DATA DOES NOT APPEAR ON THE PROGRAM DISPLAY. SEVEN DATA PRESETS ARE AVAILABLE (0-6), AND EACH DATA PRESET DEFINES THE FOLLOWING FIVE PARAMETERS: o INTERFACE TYPE - SYNCHRONOUS OR ASYNCHRONOUS o MODEM TYPE - WHICH MODEM IS USED; SERIAL TONE, 39 TONE, OR FSK o BAUD RATE - RATE THAT DATA IS TRANSMITTED OVER THE AIR o INTERLEAVING - LEVEL OF ERROR CORRECTION o PRESET NAME - THE USER CAN GIVE A UNIQUE NAME TO EACH PRESET

AN/PRC-138 BASIC PROGRAMMING CHAN FILL DATA CFIG KEYS SECUR
CONFIGURATION CONFIGURATION CONTROLS THE RADIO AND DATA PORT CONFIGURATIONS, DETERMINES OPTIONS INSTALLED IN THE SYSTEM, AND SETS THE TIME OF DAY. PRGM PRESS THE PRGM KEY ON THE KEYPAD TO CONFIGURE THE RADIO. SELECT CFIG FROM THE DISPLAY USING THE LEFT/RIGHT ARROW KEYS, AND PRESS THE ENTER KEY. CHAN FILL DATA CFIG KEYS SECUR

AN/PRC-138 BASIC PROGRAMMING RADIO PORTS OPTIONS TIME
CONFIGURATION (CONT.) THE CONFIGURATION MENU HAS FOUR SUB-MENUS: o RADIO - CONFIGURES THE RADIO o PORTS - CONFIGURES THE DATA AND REMOTE PORTS o OPTIONS - CONFIGURES ANY OPTIONS o TIME - SETS THE TIME OF DAY CLOCK RADIO SELECT THE RADIO CONFIGURATION SUB-MENU AND PRESS THE ENTER KEY: RADIO PORTS OPTIONS TIME

AN/PRC-138 BASIC PROGRAMMING CONFIGURATION (CONT.)
THE RADIO SUB-MENU ALLOWS THE PROGRAMMER TO CHANGE THE PARAMETERS ON THE FOLLOWING SELECTIONS: o TRANSMIT POWER o ACTIVE SQUELCH (RWAS) o UNKEY MASK o CHANGE RWAS KEY o SQUELCH o CW OFFSET o RETRANSMIT o ERROR BEEP o ANTENNA PORT FOR 20W POWER AMP o COMPRESSION o INTERNAL COUPLER o FM DEVIATION o FM SQUELCH o FM TONE o RECEIVER PREAMPLIFIER

AN/PRC-138 BASIC PROGRAMMING RADIO PORTS OPTIONS TIME REMOTE DATA
CONFIGURATION (CONT.) PORTS SELECT THE PORTS CONFIGURATION SUB-MENU AND PRESS THE ENTER KEY: RADIO PORTS OPTIONS TIME A SUB-MENU UNDER PORTS ALLOWS PROGRAMMING OF THE DATA OR REMOTE PORTS AND THE PROTOCOL USED: REMOTE DATA PROTOCOL SELECT REMOTE OR DATA AND MAKE THE FOLLOWING PROGRAM SELECTIONS FOR EACH OF THE PORTS:

AN/PRC-138 BASIC PROGRAMMING CONFIGURATION (CONT.)
THE DATA OR REMOTE SUB-MENU ALLOWS THE PROGRAMMER TO CHANGE THE PARAMETERS ON THE FOLLOWING SELECTIONS: o ASYNC RATE o ASYNC BITS o ASYNC STOP BITS o ASYNC PARITY o ASYNC FLOW CONTROL o ASYNC ECHO o TX SYNC CLOCK SOURCE (DATA PORT ONLY)

CONFIGURATION (CONT.) OPTIONS SELECT THE OPTIONS CONFIGURATION SUB-MENU AND PRESS THE ENTER KEY: RADIO PORTS OPTIONS TIME THE OPTIONS SUB-MENU ALLOWS THE PROGRAMMER TO CHANGE THE PARAMETERS ON THE FOLLOWING SELECTIONS: o 1 KW POWER AMPLIFIER o PRE/POST SELECTOR o PRE/POST ANTENNA o PRE/POST SCAN RATE

CONFIGURATION (CONT.) TIME SELECT THE TIME CONFIGURATION SUB-MENU AND PRESS THE ENTER KEY: RADIO PORTS OPTIONS TIME USE THE ALPHANUMERIC KEYPAD TO ENTER THE CORRECT TIME (24 HOUR FORMAT), AND PRESS ENTER TO CHOOSE THE SELECTION. THIS COMPLETES THE TIME PROGRAMMING CYCLE. PRESS CLEAR TO RETURN TO THE CFIG MENU. THIS COMPLETES THE CFIG PROGRAMMING CYCLE. PRESS CLEAR AGAIN TO RETURN TO NORMAL OPERATION.

AUTOMATIC LINK ESTABLISHMENT
AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT FUNDAMENTALS AUTOMATIC LINK ESTABLISHMENT (ALE) IS A TECHNIQUE THAT PERMITS HF RADIO STATIONS TO CALL AND LINK ON THE BEST HF CHANNEL AUTOMATICALLY WITHOUT OPERATOR ASSISTANCE. WHEN NOT IN USE, EACH RADIO RECEIVER CONSTANTLY SCANS THROUGH ITS ASSIGNED FREQUENCIES, LISTENING FOR CALLS ADDRESSED TO IT. TO REACH A SPECIFIC STATION, THE CALLER SIMPLY ENTERS AN ID JUST LIKE DIALING A TELEPHONE NUMBER. THE RADIO CONSULTS ITS MEMORY MATRIX AND SELECTS THE BEST AVAILABLE ASSIGNED FREQUENCY. IT THEN SENDS OUT A BRIEF DIGITAL MESSAGE CONTAINING THE ID OF THE DESTINATION. WHEN THE RECEIVING STATION HEARS ITS ADDRESS, IT STOPS SCANNING AND STAYS ON THAT FREQUENCY. THE TWO STATIONS AUTOMATICALLY CONDUCT A “HANDSHAKE” TO CONFIRM THAT A LINK IS ESTABLISHED AND THEY ARE READY TO COMMUNICATE.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT FUNDAMENTALS ALE LINKING SEQUENCE BASE 01 TEAM 03 TO TEAM 03 TO BASE 01 THIS IS BASE 01 THIS IS TEAM 01

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT FUNDAMENTALS THE RECEIVING STATION, WHICH HAS BEEN SQUELCHED, WILL EMIT A BEEPING SIGNAL TO ALERT THE OPERATOR OF AN INCOMING CALL. AT THE CONCLUSION OF THE CALL, EITHER THE OPERATOR CAN “HANG-UP” OR TERMINATE THE LINK, A DISCONNECT SIGNAL IS SENT TO THE OTHER STATION, AND THEY EACH RETURN TO THE SCANNING MODE. THIS TECHNIQUE CAN ALSO BE USED FOR A GROUP OF STATIONS AT THE SAME TIME, USING THE ALE NET CALL. IN THIS SITUATION, EACH RECEIVING STATION ANSWERS BACK TO THE CALLING STATION IN A CERTAIN SEQUENCE, WHICH IS SET DURING THE ALE PROGRAMMING. AN HF COMMUNICATIONS NETWORK USUALLY HAS A NUMBER OF CHANNELS ASSIGNED TO IT. THE ALE TECHNIQUE HAS A LINK QUALITY ANALYSIS (LQA) PROCESS THAT ALLOWS THE RADIO TO EVALUATE EACH OF THESE CHANNELS TO DETERMINE THE BEST CHANNEL TO PLACE A CALL.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT FUNDAMENTALS AT PRESCRIBED INTERVALS, A STATION CAN BE PROGRAMMED TO ATTEMPT TO LINK ON EACH OF ITS ASSIGNED FREQUENCIES AND MEASURE THE SIGNAL QUALITY ON EACH LINKED FREQUENCY. THESE QUALITY SCORES ARE STORED IN A MATRIX, LISTED BY THE OTHER STATION ID VS. CHANNEL. WHEN A CALL TO A CERTAIN STATION IS INITIATED, THE RADIO CHECKS THIS MATRIX TO DETERMINE THE BEST QUALITY FREQUENCY FOR THE CALL TO THE DESIRED STATION. IT THEN ATTEMPTS TO LINK ON THAT FREQUENCY. IF THE LINK CANNOT BE ESTABLISHED ON THAT FREQUENCY, IT WILL TRY AGAIN ON THE NEXT BEST FREQUENCY, AND SO ON, UNTIL A LINK IS ESTABLISHED. IF A LINK CANNOT BE ESTABLISHED, THE RADIO WILL PROMPT THE OPERATOR THAT IT COULD NOT ESTABLISH A LINK. WHEN MAKING MULTI-STATION CALLS (NET CALL), THE RADIO SELECTS THE CHANNEL WITH THE BEST AVERAGE SCORE AMONGST THE ADDRESSES IN THE NET CALL.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING TO PROGRAM THE RADIO FOR ALE, PLACE THE FUNCTION KNOB IN THE ALE POSITION. THE ALE PARAMETERS MUST BE PROGRAMMED BEFORE OPERATION. PRESS THE PRGM KEY ON THE KEY PAD TO CONFIGURE THE ALE FUNCTIONS PRGM CHANNEL GROUP THIS PROCESS ASSIGNS INDIVIDUAL CHANNELS TO A CHANNEL GROUP. BY FIRST SELECTING A CHANNEL GROUP, INDIVIDUAL CHANNELS CAN BE ADDED OR DELETED. UP TO TEN CHANNEL GROUPS, EACH CONTAINING UP TO 100 CHANNELS, MAY BE PROGRAMMED. THE PROGRAMMER MAY ALSO REVIEW THE CHANNELS IN THE CHANNEL GROUP.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING SELECT CHAN_GRP FROM THE DISPLAY USING THE LEFT/RIGHT ARROW KEYS, AND PRESS THE ENTER KEY. CHAN_GRP ADDRESS LQA CFIG SECUR SELECT THE CHANNEL GROUP NUMBER BY USING THE UP/DOWN ARROW KEYS OR THE ALPHANUMERIC KEYPAD, AND PRESS THE ENTER KEY. THE PROGRAMMER CAN ADD, DELETE, OR REVIEW CHANNELS IN THE CHANNEL GROUP FROM THE MENU.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING ADD CHANNEL THIS ALLOWS THE PROGRAMMER TO ADD A CHANNEL TO THE CHANNEL GROUP. USE THE UP/DOWN ARROW TO SELECT ADD, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROW KEY OR THE ALPHANUMERIC KEYPAD TO SELECT THE CHANNEL TO ADD, AND PRESS THE ENTER KEY TO CHOOSE THE SELECTION. USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU. DELETE CHANNEL USE THE SAME PROCEDURE AS ABOVE. REVIEW CHANNEL

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING ADDRESS THIS PROCESS ASSIGNS SELF, INDIVIDUAL, AND NET ADDRESSES. ALE ALLOWS 20 SELF, 200 INDIVIDUAL, AND 20 NET ADDRESSES. ADDRESSESS ARE LIMITED TO 15 ALPHANUMERIC CHARACTERS. NOTE: A DEFAULT SELF ADDRESS OF 1 TO 3 CHARACTERS MUST BE PROGRAMMED BEFORE ALE CAN OPERATE. SELECT ADDRESS FROM THE DISPLAY USING THE LEFT/RIGHT ARROW KEYS, AND PRESS THE ENTER KEY. CHAN_GRP ADDRESS LQA CFIG SECUR

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING ADDRESS A SUB-MENU UNDER ADDRESS SHOWS: ADD REVIEW DELETE FROM THIS SUB-MENU THE PROGRAMMER CAN: o ADD SELF ADDRESS o ADD INDIVIDUAL ADDRESS o ADD NET ADDRESS o REVIEW SELF ADDRESS o REVIEW INDIVIDUAL ADDRESS o REVIEW NET ADDRESS o DELETE ADDRESS

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING ADD SELF ADDRESS THIS ALLOWS THE PROGRAMMER TO ADD A SELF ADDRESS. USE THE LEFT/RIGHT ARROW TO SELECT ADD, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROW KEY TO SELECT SELF, AND PRESS THE ENTER KEY. USE THE ALPHANUMERIC KEYPAD TO ENTER THE ADDRESS, AND THEN PRESS THE ENTER KEY. AFTER ENTERING THE ADDRESS, USE THE UP/DOWN ARROW KEYS OR THE ALPHANUMERIC KEYPAD TO ENTER THE CHANNELS GROUP TO USE WITH THE SELF ADDRESS, AND THEN PRESS THE ENTER KEY. USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU. ADD INDIVIDUAL ADDRESS USE SAME PROCEDURE AS ABOVE

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING ADD NET ADDRESS THIS ALLOWS THE PROGRAMMER TO ADD A NET ADDRESS. USE THE LEFT/RIGHT ARROW TO SELECT ADD, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROW KEY TO SELECT NET, AND PRESS THE ENTER KEY. USE THE ALPHANUMERIC KEYPAD TO ENTER THE ADDRESS, AND THEN PRESS THE ENTER KEY. AFTER ENTERING THE ADDRESS, USE THE UP/DOWN ARROW KEYS OR THE ALPHANUMERIC KEYPAD TO ENTER THE CHANNELS GROUP TO USE WITH THAT SELF ADDRESS, AND THEN PRESS THE ENTER KEY. USE THE UP/DOWN ARROW KEYS TO SELECT A SELF ADDRESS TO BE ASSOCIATED WITH. THIS IS THE SELF ADDRESS THIS RADIO WILL USE WHEN IT CALLS THIS NET ADDRESS. IMPORTANT: NET MEMBER ORDER MUST BE THE SAME FOR ALL STATIONS IN THE NET (ALL NET MEMBER RADIOS PROGRAMMED IDENTICALLY). USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING REVIEW SELF ADDRESS THIS ALLOWS THE PROGRAMMER TO REVIEW A SELF ADDRESS. USE THE LEFT/RIGHT ARROW TO SELECT REVIEW, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROW KEY TO SELECT SELF, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROW KEYS TO SCROLL THROUGH THE SELF ADDRESSES. PRESS THE ENTER KEY TO REVIEW THE CHANNEL GROUP ASSOCIATED WITH THAT SELF ADDRESS. USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU. REVIEW INDIVIDUAL ADDRESS: SAME PROCEDURE AS ABOVE. REVIEW NET ADDRESS: SAME PROCEDURE AS ABOVE.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING DELETE ADDRESS THIS ALLOWS THE PROGRAMMER TO DELETE AN ADDRESS. USE THE LEFT/RIGHT ARROW KEY TO SELECT SELF, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROW KEYS TO SCROLL THROUGH ALL THE PROGRAMMED ADDRESSES. NOTE: EXERCISE CAUTION WHEN DELETING ADDRESSES. AT LEAST ONE (ONE TO THREE DIGIT) SELF AND ONE INDIVIDUAL ADDRESS MUST BE PROGRAMMED FOR ALE OPERATION. USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING LQA THIS PROCESS PROGRAMS THE RADIO TO PERFORM A LINK QUALITY ANALYSIS. THERE ARE TWO TYPES OF LQA’S: EXCHANGE AN EXCHANGE LQA IS ONE WHERE THERE IS A TWO-WAY COMMUNICATION BETWEEN THE RADIO EXECUTING AND THE RADIO RECEIVING THE LQA. SOUND A SOUND LQA IS A ONE WAY TRANSMISSION. THE RADIO EXECUTING THE SOUND SENDS OUT ITS SIGNAL FOR ALL OTHER RADIOS TO GATHER SCORE INFORMATION ABOUT HOW WELL THEY ARE RECEIVING THE SIGNAL. THE RECEIVING RADIOS DO NOT RETURN ANY INFORMATION.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING SELECT LQA FROM THE DISPLAY USING THE LEFT/RIGHT ARROW KEYS, AND PRESS THE ENTER KEY. CHAN_GRP ADDRESS LQA CFIG SECUR A SUB-MENU UNDER LQA SHOWS: PROGRAM REVIEW DELETE THE USER CAN PROGRAM EITHER AN EXCHANGE LQA OR A SOUND LQA, REVIEW A PROGRAMMED LQA, OR DELETE AN LQA.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING PROGRAM AN EXCHANGE USE THE LEFT/RIGHT ARROWS TO SELECT PROGRAM, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROWS TO SELECT EXCHANGE, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROWS TO SELECT THE PROGRAMMED ADDRESS YOU WISH TO DO THE EXCHANGE WITH, AND PRESS THE ENTER KEY. REPEAT INTERVAL - THIS IS HOW OFTEN THE RADIO SHOULD DO AN LQA WITH THIS STATION. ENTER IN 24 HOUR FORMAT OR ENTER 00:00 TO SEND THIS LQA ONLY ONCE. PRESS THE ENTER KEY TO SELECT THIS REPEAT INTERVAL. START TIME - ENTER THE TIME THE LQA SHOULD START IN 24 HOUR FORMAT. PRESS THE ENTER KEY WITHOUT CHANGING THE CURRENT TIME TO EXECUTE THE LQA IMMEDIATELY. PRESS THE ENTER KEY TO SELECT THIS START TIME. AFTER PROGRAMMING AN LQA THE DISPLAY WILL SHOW TLQA IN THE UPPER RIGHT CORNER WHILE SCANNING.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING PROGRAM A SOUND USE THE LEFT/RIGHT ARROWS TO SELECT PROGRAM, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROWS TO SELECT SOUND, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROWS TO SELECT THE PROGRAMMED ADDRESS YOU WISH TO DO THE EXCHANGE WITH, AND PRESS THE ENTER KEY. REPEAT INTERVAL - THIS IS HOW OFTEN THE RADIO SHOULD DO AN LQA WITH THIS STATION. ENTER IN 24 HOUR FORMAT OR ENTER 00:00 TO SEND THIS LQA ONLY ONCE. PRESS THE ENTER KEY TO SELECT THIS REPEAT INTERVAL. START TIME - ENTER THE TIME THE LQA SHOULD START IN 24 HOUR FORMAT. PRESS THE ENTER KEY WITHOUT CHANGING THE CURRENT TIME TO EXECUTE THE LQA IMMEDIATELY. PRESS THE ENTER KEY TO SELECT THIS START TIME. AFTER PROGRAMMING AN LQA THE DISPLAY WILL SHOW TLQA IN THE UPPER RIGHT CORNER WHILE SCANNING.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING REVIEW AN LQA USE THE LEFT/RIGHT ARROWS TO SELECT REVIEW, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROWS TO SELECT THE ADDRESS OF THE STATION OF THE PROGRAMMED LQA, AND PRESS THE ENTER KEY. PRESS THE ENTER KEY TO REVIEW THE REPEAT INTERVAL FOR THAT LQA. PRESS THE ENTER KEY TO REVIEW THE START TIME FOR THAT LQA. USE THE CLEAR KEY TO RETURN TO THE MAIN PROGRAMMING MENU. DELETE AN LQA USE THE LEFT/RIGHT ARROWS TO SELECT DELETE, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROWS TO SELECT THE ADDRESS OF THE STATION OF THE PROGRAMMED LQA YOU WISH TO DELETE, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION THIS PROCESS CONFIGURES THE RADIO FOR ALE OPERATION. THESE CONFIGURATION PARAMETERS MUST BE SET CORRECTLY FOR PROPER ALE OPERATION. SELECT CFIG FROM THE DISPLAY USING THE LEFT/RIGHT ARROWS, AND PRESS THE ENTER KEY. CHAN_GRP ADDRESS LQA CFIG SECUR

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION MAXIMUM CHANNELS TO SCAN THIS PARAMETER TELLS THE CALLING RADIO HOW LONG TO CALL SO THAT THE RECEIVING STATION(S) HAVE TIME TO COMPLETE A SCAN CYCLE AND STILL RECEIVE A SIGNAL. THIS PARAMETER MUST BE SET FOR THE WORST CASE RADIO IN THE NETWORK. IF ALL THE RADIOS SCAN 5 CHANNELS EXCEPT ONE WHICH SCANS 10, ALL THE RADIOS IN THE NETWORK MUST SET THIS TO 10. NOTE: THIS IS ONE OF THE MOST CRITICAL PARAMETERS IN ALE THAT MUST BE SET. THE RADIO DEFAULTS TO 100, CAUSING PROBLEMS WITH NEW ALE USERS OR ZEROIZED RADIOS. LISTEN BEFORE TRANSMIT THIS FUNCTION FORCES THE RADIO TO MONITOR FOR ALE TRAFFIC ON THE SELECTED CHANNEL BEFORE IT MAKES AN ALE CALL. USE THE UP/DOWN ARROWS TO SELECT ON OR OFF, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION KEY TO CALL THIS FUNCTION ALLOWS THE OPERATOR TO SIMPLY KEY THE HANDSET TO PLACE AN ALE CALL TO THE LAST ADDRESS CALLED. THIS IS LIKE REDIAL ON A TELEPHONE. USE THE UP/DOWN ARROWS TO SELECT ON OR OFF, AND PRESS THE ENTER KEY. MAXIMUM TUNE TIME THIS PARAMETER SETS THE LENGTH OF TIME THE CALLING STATION WAITS FOR THE TARGET STATION TO TUNE ITS ANTENNA COUPLER, POWER AMPLIFIER, ETC, AND RESPOND TO THE CALL. THIS PARAMETER MUST BE SET FOR THE WORST CASE SYSTEM IN THE NETWORK. NOTE: THIS IS ONE OF THE MOST CRITICAL PARAMETERS IN ALE THAT MUST BE SET. USE THE UP/DOWN ARROWS OR THE ALPHANUMERIC KEYPAD TO ENTER THE MAXIMUM TUNE TIME, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION RADIO SILENCE THIS FUNCTION PREVENTS ALE FROM TRANSMITTING IN RESPONSE TO AN INCOMING CALL OR LQA, TO PREVENT UNNECESSARY INTERFERENCE OR DETECTION. PROGRAMMED LQA’S ARE ALSO INHIBITED. USE THE UP/DOWN ARROWS TO SELECT ON OR OFF, AND PRESS THE ENTER KEY. LINK TIMEOUT THIS FEATURE RETURNS THE RADIO FROM THE LINKED MODE TO SCAN IF THE RADIO HAS NOT BEEN KEYED OR HAS NOT RECEIVED AN ALE SIGNAL FOR A PERIOD OF TIME (FROM 1 TO 60 MINUTES), OR IT ALLOWS THE RADIO TO REMAIN LINKED INDEFINITELY (0 MINUTES). USE THE UP/DOWN ARROWS ON OR OFF, AND PRESS THE ENTER KEY. IF THE LINK TIMEOUT IS TURNED ON, USE THE UP/DOWN ARROWS OR THE ALPHANUMERIC KEYPAD TO ENTER THE LINK TIMEOUT PERIOD, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION LINK TO ANY CALLS THIS FUNCTION ENABLES OR DISABLES THE RADIO’S ABILITY TO LINK TO ANY CALLS. USE THE UP/DOWN ARROWS TO SELECT YES OR NO, AND PRESS THE ENTER KEY. LINK TO ALL CALLS THIS FUNCTION ENABLES OR DISABLES THE RADIO’S ABILITY TO LINK TO ALL CALLS. IF THE LINK TIMEOUT IS TURNED ON, USE THE UP/DOWN ARROWS OR THE ALPHANUMERIC KEYPAD TO ENTER THE LINK TIMEOUT PERIOD, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT PROGRAMMING CONFIGURATION AUTOMATIC MESSAGE DISPLAY THIS FUNCTION ENABLES OR DISABLES THE RADIO FROM DISPLAYING INCOMING AMD MESSAGES ON THE FRONT PANEL. ANY INCOMING AMD’s ARE ALWAYS SAVED (10 NEWEST MESSAGES). USE THE UP/DOWN ARROWS TO SELECT YES OR NO, AND PRESS THE ENTER KEY. THIS COMPLETES THE ALE PROGRAMMING CYCLE. PRESS THE CLEAR KEY TO RETURN TO NORMAL OPERATION.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION PLACE THE FUNCTION KNOB IN THE ALE POSITION. RECEIVING A CALL TO RECEIVE AN ALE CALL, THE RADIO SHOULD BE IN THE SCAN MODE AS SHOWN BELOW: R * SCAN * OFF CLR WHEN AN INCOMING CALL IS RECEIVED, THE DISPLAY WILL SHOW: R [ SIGNAL RECEIVED IF THE CALL IS NOT ADDRESSED TO THE UNIT, THE RADIO WILL RESUME SCANNING.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION IF THE CALL IS FOR THE UNIT IT WILL AUTOMATICALLY RETURN THE CALL AS PART OF THE ALE HANDSHAKE PROCESS. WHEN THE TWO STATIONS HAVE SUCCESSFULLY LINKED, THE RADIO WILL BEEP AND THE DISPLAY WILL SHOW: R LINKED TEAM 03 ADDRESS OF THE OTHER STATION TERMINATING A CALL TO TERMINATE AN ALE CALL, FROM EITHER RADIO: PRESS THE CLEAR KEY AND USE THE UP/DOWN ARROW KEYS TO SCROLL TO ANSWER YES, THEN PRESS THE ENTER KEY. CLEAR

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION PLACING AN INDIVIDUAL/NET CALL ALE CAN INITIATE EITHER A AUTO CALL OR A MANUAL CALL TO ANOTHER STATION OR NET PRESS THE CALL KEY. CALL USE THE UP/DOWN ARROW KEYS TO SELECT AUTO OR MANUAL, AND PRESS THE ENTER KEY. USE THE UP/DOWN ARROW KEYS TO SELECT THE ADDRESS OF THE STATION YOU WISH TO CALL, AND PRESS THE ENTER KEY. IF THE OPERATOR SELECTED A MANUAL CALL, THE RADIO WILL PROMPT THE USER FOR A CHANNEL TO USE. USE THE UP/DOWN ARROW KEYS TO SELECT THE DESIRED CHANNEL, AND PRESS THE ENTER KEY.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION THE RADIO WILL THEN START THE ALE CALLING PROCESS. R CALLING TEAM 03 ADDRESS OF THE OTHER STATION WHEN THE TWO STATIONS HAVE SUCCESSFULLY LINKED, THE RADIO WILL BEEP AND THE DISPLAY WILL SHOW: R LINKED TEAM 03

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION IF THE RADIO IS UNSUCCESSFUL IN LINKING, THE DISPLAY WILL SHOW: R * SCAN * NO RESPONSE

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION TO PLACE AN ANY OR ALL CALL: PRESS THE CALL KEY. CALL USE THE UP/DOWN ARROW KEYS TO SELECT AUTO OR MANUAL, AND PRESS THE ENTER KEY. USE THE LEFT/RIGHT ARROW KEYS TO INDIVIDUAL/NET, AND USE THE UP/DOWN ARROWS TO SELECT ANY OR ALL, AND PRESS THE ENTER KEY. IF THE OPERATOR SELECTED A MANUAL CALL, THE RADIO WILL PROMPT THE USER FOR A CHANNEL TO USE. USE THE UP/DOWN ARROW KEYS TO SELECT THE DESIRED CHANNEL, AND PRESS THE ENTER KEY. THE RADIO WILL THEN START THE ALE ANY OR ALL CALL PROCESS.

AN/PRC-138 AUTOMATIC LINK ESTABLISHMENT OPERATION OPTION KEY IN ALE THE OPTION KEY IN ALE ALLOWS THE OPERATOR TO CHANGE/VIEW ALE PARAMETERS. THE PARAMETERS CHANGE WHETHER THE RADIO IS LINKED OR SCANNING. OPT DURING THE LINKED STATE, THE OPTION KEY ALLOWS THE OPERATOR TO RETUNE THE RADIO, CHANGE THE POWER LEVEL, OR VIEW THE TIME OF DAY CLOCK. THESE FUNCTIONS ARE ACCESSED USING THE SAME STEPS OUTLINED EARLIER IN THE BASIC PROGRAMMING PORTION OF THIS INSTRUCTION. DURING THE UNLINKED OR SCANNING STATE, THE OPTION KEY PROVIDES THE USER WITH THE FOLLOWING SELECTIONS: o LQA o SCORES o TIME o POWER o RETUNE o EOW_TO o TX_MSG o RX_MSG

AN/PRC-138 THE END!

AN/PRC-138 BASIC PROGRAMMING PROCEDURES

AN/PRC-138 TRAINING OUTLINE

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AN/PRC-138 TRAINING OUTLINE

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