Press the [PF2] key again to shut off speaker and return to standby.
When in analog mode, if no signal, it will emit noise when press the
Monitor Key.
** The Rx icon is seen when monitor is activated.
Emergency Alarm
5.8
Press Emergency Alarm key [PF3] to turn alarm function, then press this
key again to return.
Battery Voltage Test
5.9
Press the key programed as Voltage function to check the current battery
voltage, press this key again to return.
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5. BASIC OPERATIONS
AT-D878S Digital DMR and Analog
Two Way Radio