Monitor Key; Anl (Automatic Noise Limiter) Feature - Vertex Standard Pilot VXA-210 Operating Manual

Monitor Key

When listening to a very weak signal from an air-
craft or ground station, you may observe the signal
disappearing periodically as the incoming signal
strength becomes too weak to override the squelch
threshold setting.
To disable the squelch
temporarily, press and
hold the MONITOR key
for 2 seconds on the left
side of the radio, just be-
low the PTT button. The
squelch will remain
open and you should have a better chance of hearing
weak signals.
To return to normal operation, press the MONITOR
key momentarily.
18
O
PERATION

ANL (Automatic Noise Limiter) Feature

For reduction of impulse noise, such as that produced
by an engine's ignition system, the ANL feature may
prove helpful.
r To activate the ANL
feature, press the
[ANL] key momen-
tarily. The "ANL"
icon will appear on
the display, and you
should observe a re-
duction in the ignition noise.
r To turn the ANL feature off, repeat the above
step; the "ANL" icon will disappear from the dis-
play.
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ILOT PERATING ANUAL