4. OPERATION4-1. CONTROL FUNCTIONS4-1-1. Front panelNote:All segments on the Display Panel and Indi-cators are shown on for this explanation.C) POWER switchPress to turn the power ON or OFF.Note:When the AC or DC power cable is connected the clockand the timer function even if the POWER switch is turnedOFF.® MeterIndicates signal strength in S units and antenna terminalinput voltage.® MODE/KEY (Numeric Keypad)These keys are used to select the desired mode of opera-tion and the antenna.LSB : Lower SidebandUSB : Upper SidebandCW : Continuous WaveAM : Amplitude ModulationFM : Frequency ModulationFSK : Frequency Shift KeyingANT 1: Antenna 1ANT 2 : Antenna 2When programming a memory channel or directly enteringa frequency these keys are used as a numeric keypad toenter the channel number or frequency. FM mode is suita-ble for the narrow band FM (maximum frequency devia-tion: ± 5kHz) reception.® IndicatorsF.LOCK : Lights when the F.LOCK key is ON.NOTCH : Lights when the NOTCH key is ON.ANT 2 Lights when the ANT 2 key is pressed.ANT 1 : Lights when the ANT 1 key is pressed.M.SCR : Lights when the M.IN key is pressed. Whenthe memory scroll function is active you canreview the contents of the memory channelswithout a loss of the incoming receive fre-quency.BUSY : Lights when the squelch opens. (A signal isreceived that is strong enough to produce agood quality audio output.)® Display PanelThe fluorescent display tube displays operational informa-tion such as receive frequency, and memory channel infor-mation. (See page 15.)® FUNCTION keysHOUR : See page 25.MINUTE : See page 25.A/B : Selects VFO A or VFO B. (See page 19.)FLOCK : The selected dial frequency and mode arelocked.STEP : Selects the VFO frequency step. (See page19.)A = B : Equalizes the frequencies and modes of VFOA and VFO B. (See page 19.)12