Yaesu FT-4VR Advance Manual

Also see for FT-4VE: Operating manual

251 APOSet the length of time until the transceiver turns off automatically.OFF Automatic Power OFF (APO)0.5 H –12 H (Hours)“ ”icon appears on the LCD; the transceiver is turned OFFautomatically when no operation is performed for a specifiedperiod of time.Beep sounds about 60 seconds before turn OFF.2 AR BEPSelects the beep option during ARTS operation.OFF No alert beeps sound.INRANG Beeps sound only when the transciever first detects that youare within range.ALWAYS Beeps sound every time a polling transmission is receivedfrom the other station (every 15 or 25 seconds when in range).For more details, see “ARTS Alert Beep Options”3 AR INTSelects the Polling Interval during ARTS operation.25 SEC 25 seconds Polling interval15 SEC 15 seconds Polling intervalFor more details, see “ARTS Polling Time Options”4 BCLOEnables/Disables the Busy Channel Lock-Out feature.Preventing transmissions when the receive channel is busy.BCL.OFF Permits starting a transmission while receiving a signal.BCL.ON Disables transmissions while receiving a signal.5 BEEPSets the beep function on pressing the keypad, or stopping the receiver scan-ning.KEY+SC The beeper sounds when you press any key, or when thescanner stops.KEY The beeper sounds when you press any key.OFF Beeper is disabled.