Monitor Key; Anl (Automatic Noise Limiter) Feature - Yaesu FTA-230 Operating Manual

Weather Alert signal via Menu Item "WXAF," if
desired. See page 45 for details.
Note 2: The Weather Channel mode memorizes the last
Weather Channel you have used, and will retain
this information until the radio is turned off.

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 temporarily, press and hold the
[ M O N I TO R ] k e y f o r 2
seconds on the left side of
the radio, just below 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.
20
a o
dvanced 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.
 To activate the ANL
feature, press the [ F ]
key followed by the
[ 0 ( A N L ) ] k e y. T h e
"ANL" icon will ap-
pear on the display, and
you should observe a
reduction in the ignition
noise.
 To turn the ANL feature
off, repeat the above step
(press the [ F ] key followed by the [ 0 ( ANL )] key);
the "ANL" icon will disappear from the display.
FTA-230 O
perATing
M
AnuAl