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While the key is pressed, the display will
show MON on the second line of the
display. This key will also cancel the
current incoming call.
Normally the user will only hear messages
with the proper CTCSS or DCS codes. This
is to prevent the user from fatigue by
hearing all messages sent to everybody.
This switch bypasses that protection and
allows the user to hear all traffic on that
channel as long as the key is pressed.
Monitor/Call Cancel
This is an alternative action key that
enables or disables the monitor mode.
While in the monitor mode, any voice
traffic which has the required squelch level
will be heard. While in the monitor mode,
the display will show “MON” on the
second line of the display. This key will
also cancel the current incoming call.
Normally the user will only hear messages
with the proper CTCSS or DCS codes. This
is to prevent the user from fatigue by
hearing all messages sent to everybody.
This switch bypasses that protection and
allows the user to hear all traffic on that
channel as long as the radio is in the
monitor mode.
Squelch Momentary/Call Cancel
Pressing the “Squelch Off Momentary/Call
Cancel” key allows monitoring the channel
for any voice traffic. The incoming signal
does not to have any signal before anything
can be heard. That means if there is no
signal you will hear squelch noise.
Releasing the key puts it back in the
normal mode. While the key is pressed, the
display will show MON on the second line
of the display. This key will also cancel the
current incoming call.
By turning off the squelch, the user can
hear a weaker signal than if the squelch
was already enabled. This is both a
diagnostic tool and a feature. If the
transmitter from the originating user is
weak and does not get past the squelch,
then disabling the squelch will allow the
user to hear weak signals.
