Alinco DJ-A446 - Manual (Page 27)

Professional
FM Transceiver 13
BASIC OPERATIONS
Adjusting Channel
Side Key【PF1】(Jacklight Switch)
Side Key【PF2】(Keypad lock)
Squelch Off
Press key/ key to choose the desired channel. Press key once to enter the downward
channel while press key to enter the upward channel.
Long press this key to switch on or off the jacklight.
Long press this key to start keypad lock function. Repeat to cancel the key lock function.
Press the【 PF2】 key, squelch opens and the background noise is heard. Press this key again, it
beeps twice, and the squelch closes. By using this function you can monitor weaker signals.
Emergency Alarm Function
While Stand-by state, press this key for 3 seconds to enable the emergency
alarm function. When activated the function, the radio will sound an alarm beep
and start transmitting the alarm beep.