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Mute GPS or MDC-1200 ANI Packet:
If checked, the unit will detect incoming GPS or MDC-1200 ANI packets
and will mute the speaker for the Mute Duration time. A small chirp will still be heard out the speaker.
Mute Duration:
This sets the amount of time after the unit detects the incoming packet that it will keep the
speaker muted. Midian’s GPS data packet without location is 200 msec and with location is 410 msec. Motorola’s
MDC-1200 data packets are approximately 180 msec in length.
Packet Detector Sensitivity:
This controls the sensitivity of the preamble tone detector which triggers the muting
of the data packets. If it is too sensitive (higher number), voice may cause the detector to trigger resulting in voice
being muted when it should not. If it is not sensitive enough (lower number), the detector may not trigger when it
is supposed to. Adjust the sensitivity as needed to achieve the desired results. For the GPS speaker microphones
with scrambling, there is a separate sensitivity adjustment for when the unit is in scramble mode.
