VXA-710 SPIRIT OPERATING MANUAL
17
BASIC OPERATION
Monitor Key
When listening to a very weak signal from an aircraft 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 tem-
porarily, press and hold the
MONITOR key for 2 sec-
onds on the left side of the
radio, just below the PTT
button. The “ ” icon will
appear on the display, and
the squelch will remain open
and you should have a better
chance of hearing weak sig-
nals.
To return to normal operation, press the MONITOR key
momentarily; the “ ” icon will disappear from the dis-
play.
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.
To activate the ANL fea-
ture, press the key
momentarily. The
“ANL” icon will appear
on the display, and you
should observe a reduc-
tion in the ignition noise.
To turn the ANL feature
off, press the key
again; the “ANL” icon
will disappear from the
display.
Note: The ANL feature is only activated on the Air Band.