Must be new to Rev P.

I decided on the Microair. I don't know if I'll regret it... but I'll
sure find out. Cost was not the only factor, or even the deciding
factor, but it was a factor. With the money I'll save, I can buy a
PCAS (almost). There's at least one Microair in the local area that
seems to work fine.

6.1.2 Monitor Function
By holding down the remote memory button or toggle key for 3
seconds and then releasing, the M760 will enable the monitor
function. Both active and standby frequencies are monitored at
the same time for a signal. An ‘M’ character will oscillate up
and down to indicate that the monitor function is active.
A signal can be received on either the active or the standby
frequency. While receiving a signal on the
active frequency the standby channel is NOT monitored. While receiving
a signal on the standby
frequency the active channel is periodically monitored. If a signal is
found on the active frequency the
M760 will revert to the active frequency. After a signal has been
received the M760 will return to
monitoring both frequencies.
IMPORTANT NOTE
The user can only transmit on the active frequency. If the PTT is
keyed the
radio will transmit on the active frequency only.
Monitor mode can be cancelled by pressing the remote memory button or
toggle key briefly. The ‘M’
character is no longer displayed at the right hand end of the display.
If the mode key is pressed to move
to channel mode, the monitor function is dis-engaged.