TABLE OF CONTENTSivIN CASE OF EMERGENCY .............................................................. iRECOMMENDATION ........................................................................ iFOREWORD .................................................................................... iiIMPORTANT ..................................................................................... iiEXPLICIT DEFINITIONS .................................................................. iiFEATURES ....................................................................................... iiPRECAUTIONS ............................................................................... iiiTABLE OF CONTENTS ................................................................... iv1 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■ Lock function..........................................................................11■ Call channel programming .....................................................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 (PMR) CHANNEL OPERATION ....................................16■ LAND (PMR) 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 ......................................................2610 SPEAKER-MICROPHONE .......................................................27■ HM-138 Description ...............................................................27■ Attachments ...........................................................................2711 TROUBLESHOOTING ..............................................................2812 VHF MARINE CHANNEL LIST .................................................2913 SPECIFICATIONS.....................................................................3014 OPTIONS ..................................................................................3115 QUICK REFERENCE ..........................................................32−3316 CE .............................................................................................34