■ Front, top and side panelsq ANTENNA CONNECTOR (p. II)BNC connector: Connects the supplied antenna.w SQUELCH KEY [SQL] (p. 18)➥ Push and hold to temporarily open the squelch andmonitor the operating frequency.➥ While pushing this key, rotate the tuning dial* to adjustthe squelch level.e UP/DOWN KEYS [YY]/[ZZ]Adjust audio volume level.* (p. 17)r USB JACK [USB]Connects to a PC using an optional OPC-1382 CLONINGCABLE for cloning. Cloning allows you to quickly and easilytransfer the programmed contents between the IC-R20and the connected PC.t EXTERNAL DC-IN CONNECTOR [DC] (p. 9)Connects an AC adaptor or an optional cigarette lightercable for both charging the installed re-chargeable batterypack and operating.y EXTERNAL SPEAKER CONNECTOR [SP/CI-V]➥ Connect an optional earphone or headphone.The internal speaker will not function when any exter-nal equipment is connected. (See p. 80 for a list ofavailable options.)➥ Connect an optional CT-17 for remote control operation.(p. 68)qwertyuiKEYPAD1PANEL DESCRIPTION1
