vTABLE OF CONTENTSSAFETY TRAINING INFORMATION ................................................. iIN CASE OF EMERGENCY ............................................................. iiRECOMMENDATION ....................................................................... iiFOREWORD ................................................................................... iiiIMPORTANT .................................................................................... iiiEXPLICIT DEFINITIONS ................................................................. iiiFEATURES ...................................................................................... iiiPRECAUTIONS ............................................................................... ivTABLE OF CONTENTS .................................................................... v1 OPERATING RULES ..................................................................12 SUPPLIED ACCESSORIES AND ATTACHMENTS ...............2−33 PANEL DESCRIPTION ...........................................................4−7■ Front, top and side panels .......................................................4■ Function display .......................................................................64 BASIC OPERATION .............................................................8−12■ Channel selection ....................................................................8■ Receiving and transmitting ....................................................10■ Adjusting the squelch level ....................................................11■ Automatic backlighting ...........................................................11■ Voice scrambler operation (Available for I/S version only) .....11■ Call channel programming .....................................................12■ Lock function..........................................................................125 SCAN OPERATION ............................................................13−14■ Scan types .............................................................................13■ Setting tag channels ..............................................................14■ Starting a scan.......................................................................146 DUALWATCH/TRI-WATCH .......................................................15■ Description .............................................................................15■ Operation ...............................................................................157 LAND CHANNEL OPERATION ................................................16■ LAND Channel Group ............................................................16■ Function display .....................................................................168 SET MODE ..........................................................................17−21■ SET mode programming........................................................17■ SET mode items ....................................................................189 BATTERY CHARGING .......................................................22−26■ Battery charging ....................................................................22■ Cautions.................................................................................22■ Optional BP-226 battery case................................................24■ AD-100 installation.................................................................25■ Optional battery chargers ......................................................2510 SPEAKER-MICROPHONE .......................................................27■ HM-138 Description ...............................................................27■ Attachments ...........................................................................2711 TROUBLESHOOTING ..............................................................2812 VHF MARINE CHANNEL LIST .................................................2913 SPECIFICATIONS.....................................................................3014 QUICK REFERENCE ..........................................................31−3215 OPTIONS ..................................................................................33