VXA-150 P
RO
V O
PERATING
M
ANUAL
19
Monitor Switch
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
switch for 2 seconds on
the left side of the radio,
just below the
PTT
but-
ton. The squelch will re-
main open and you should have a better chance of
hearing weak signals.
To return to normal operation, press the
MONITOR
switch again momentarily.
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
display.
r
If noise problems persist, contact your dealer or
a local avionic shop for assistance regarding your
particular application.
2
3
8
BEEP
SKIP
DW
ANL
0
9
5
6
121.5
B
C
