152 SETTING A FREQUENCY Lock functionsTo prevent accidental frequency changes and unnecessaryfunction access, use the lock function. The transceiver has 2different lock functions.D Frequency lockThis function locks [DIAL] and switches electronically and canbe used together with the microphone lock function.➥ Push [SET• ] for 1 sec. to turn the lock function ON andOFF.• [PTT], [DUP•MONI] (monitor function only), [VOL], [SQL] and[MAIN•BAND] (main band selection only) can be used while thechannel lock function is in use. Also, TONE-1, TONE-2, DTMFtones or DTMF memory contents can be transmitted from the mi-crophone.➥ Push [VFO/LOCK] for 1 sec. to switch thelock function ON and OFF.D Microphone keypad lockThis function locks the microphone keypad.➥ Push [FUNC] then [ SQLZ D(16KEY-L)] toswitch the microphone keypad lock functionON and OFF.• [PTT], [VFO/LOCK], [MR/CALL], [BAND], [Y], [Z],[F-1], [F-2], [DTMF-S] and [FUNC] on the micro-phone can be used.• All switches on the transceiver can be used.• The keypad lock function is released when thepower is turned OFF then ON again.16KEY-LVFO/LOCKMAINT XMAINT XM MPush [SET• ]for 1 sec.2 “L”s appear while the lock function is activated.
