ivTABLE OF CONTENTS 123456789101112131415FOREWORD .................................................. iIMPORTANT .................................................. iEXPLICIT DEFINITIONS ................................ iPRECAUTION ............................................... iiSUPPLIED ACCESSORIES ......................... iiiOPERATING THEORY ................................. iiiOPERATING NOTES ................................... iiiTABLE OF CONTENTS ................................ ivQUICK REFERENCE GUIDE .................. I–VI Preparation ............................................. I1 PANEL DESCRIPTION ........................ 1–7 Front, top and side panels .................... 1 Function display .................................... 62 BATTERY CHARGING ...................... 8–10 Battery installation ................................. 8 Caution .................................................. 9 Battery charging .................................... 93 FREQUENCY AND CHANNEL SETTING.......................................................... 11–16 Mode selection..................................... 11 Operating band selection..................... 12 Setting a tuning step............................ 14 Setting a frequency.............................. 14 Selecting a memory channel ............... 10 Receive mode selection ...................... 16 Lock function ....................................... 164 BASIC OPERATION ........................ 17–23 Receiving............................................. 17 Setting audio volume ........................... 17 Squelch level setting............................ 18 Monitor function ................................... 18 Attenuator function .............................. 19 RF gain ................................................ 19 Duplex operation ................................. 20 AFC function........................................ 21 NB/ANL functions ................................ 21 Band scope.......................................... 22 [DIAL] function assignment.................. 235 DUALWATCH OPERATION ............ 24–25 Setting audio volume ........................... 24 Squelch level setting............................ 24 Main band selection............................. 25 Band exchange.................................... 256 MEMORY CHANNELS ..................... 26–33 General description ............................. 26 Memory channel programming............ 26 Memory bank setting ........................... 27 Memory bank selection........................ 28 Programming memory/bank name ...... 29 Selecting memory/bank name indication..... 30 Copying memory contents................... 31 Memory clearing .................................. 32 Erasing/transferring bank contents...... 337 SCAN OPERATION ......................... 34–41 Scan types........................................... 34 Full/band/programmed scan................ 35 Scan edges programming ................... 36 Memory/bank/all bank scan................. 37 Auto-memory write scan...................... 38 Skip channel/frequency setting............ 39 Scan resume condition ........................ 407 PRIORITY WATCH .......................... 42–44 Priority watch types ............................. 42 Priority watch operation ....................... 439 COMFORTABLE RECEIVING.......... 45–48 Tone/DTCS squelch operation............. 45 Tone squelch frequency/DTCS code set-ting....................................................... 46 DTCS polarity setting........................... 47 Tone scan ............................................ 4810 SET MODE ...................................... 49–59 General................................................ 49 Set mode items.................................... 5011 OTHER FUNCTIONS ....................... 60–67 Antenna selection ................................ 60 Weather channel operation ................. 61 Data cloning ........................................ 62 Auto power-off function........................ 63 IC recorder........................................... 64 Partial reset ......................................... 67 All reset ............................................... 6812 CONTROL COMMAND ................... 68–69 General................................................ 68 Data format.......................................... 68 Command table ................................... 6813 FREQUENCY TABLE ...................... 70–61 TV channels......................................... 70 VHF marine channels .......................... 73 Weather channels................................ 73 Other communications in the USA ...... 74 Other communications— other countries............................................................. 7614 MAINTENANCE ..................................... 78 Troubleshooting ................................... 7815 SPECIFICATIONS ................................. 7916 OPTIONS ............................................... 8016