22PANEL DESCRIPTION■ Front panel— Controllerq DISTRESS SWITCH [DISTRESS] (p. 17)Hold down for 5 seconds (approximately) to make adistress call.w DSC SWITCH [DSC]Switches between the DSC watch mode and thevoice/e-mail communication mode when pushed.e CANCEL/CALL SWITCH [CANCEL/CALL]➥ Cancels a distress or DSC repeat call. (p. 20)➥ Hold down for 1 second to start calling after theDSC has been setup.r HEADPHONE JACK [ ]Accepts headphones.• Output power: 5 mW with a 16 Ω load (stereo/monaural)t MICROPHONE CONNECTOR [MIC]Accepts the supplied or optional microphone.• See p. 65 for appropriate microphones.• See p. 63 for microphone connector information.y GROUP SELECTOR [GRP]➥ Selects groups in 20 channel steps and ITU ma-rine channel groups. (p. 8)➥ Selects items during the quick/initial set mode.u CHANNEL SELECTOR [CH]➥ Selects an operating channel within the selectedchannel group, such as ITU channels. (p. 8)• User channels can be sequentially selected be-tween 1 to 160 (maximum) regardless of the channelgroup.➥ Changes the setting or value of the selected itemin the quick/initial set mode.i RX/CLARITY SWITCH [RX clar]➥ After pushing [F], turns the clarity function ONor OFF. (p. 12)• [CH] is used to adjust the clarity.➥ In the DSC watch mode, opens the RX memoryselect screen. (p. 40)• [CH] is used for distress and other call selection.o POWER SWITCH [POWER]➥ Push to turn ON the power.➥ Hold down for 1 second to turn OFF the power.!0 TX/TRANSMIT FREQUENCY SWITCH [TX txf]➥ After pushing [F], displays the transmit frequency,and opens the squelch. Checks and monitors thetransmit frequency while holding down. (p. 10)➥ In the DSC watch mode, opens the TX memoryselect screen. (p. 45)• [CH] is used for memory selection.!1 VOLUME CONTROL [VOL]Adjusts the audio output level.• Audio does not come from the speaker when:- The speaker mute switch is turned ON.- The squelch function is turned ON and no signal isbeing received.- In the DSC watch mode.DISTRESSqwerty u i o !0 !1!2!3!4!5!6!7Function display (pp. 6, 7)