192 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 dials and keys electronically and can beused together with the microphone lock function.➥ Push and hold [F• ] for 1 sec. to turn the lock functionON and OFF.• [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 and hold [VFO/LOCK] for 1 sec. toturn the lock function ON and OFF.D Microphone keypad lockThis function locks the microphone keypad.➥ Push [FUNC] then [SQLZ D(16KEY-L)] to turnthe microphone keypad lock function ON andOFF.• [PTT], [VFO/LOCK], [MR/CALL], [BAND], [Y], [Z],[F-1], [F-2], [DTMF-S] and [FUNC] on the micro-phone can be used.• All keys on the transceiver can be used.• The keypad lock function is released when thepower is turned OFF then ON again.16KEY-LVFO/LOCK[F• ]“ ” appear while the lock function is activated.
