FTA-450L OperATing MAnuAL
39
advanCed operatIon
ANL Feature
For reduction of impulse noise, such as that produced by
an engine’s ignition system, the ANL (automatic noise
limiter) feature may prove helpful.
To activate the ANL, select “
ON
” on the item “
ANL
” of
the
COMM SETUP
menu in the SETUP mode.
EMERGENCY CALL
ANL
WEATHER ALERT
PTT SCAN STOP
SCAN RESUME
SCAN STOP TYPE
DUAL WATCH FREQ.
FREQUENCY STEP
COMM SETUP
ANL
OFF
ON
COMM SETUP
Notes:
The 8.33 kHz steps are available in the COM Band
only.
When you set the channel step to 8.33 kHz, the
channel display differs from actual operating
frequency; see the chart below. However, the
operator (pilot, tower, control, etc.) will call out the
frequency according to what the display indicates.
Operating
Frequency
Display
8.33 kHz Step 25 kHz Step
1**.0000 MHz 1**.005 1**.000
1**.0083 MHz 1**.010
1**.0166 MHz 1**.015
1**.0250 MHz 1**.030 1**.025
1**.0333 MHz 1**.035
1**.0416 MHz 1**.040
1**.0500 MHz 1**.055 1**.050
1**.0583 MHz 1**.060
1**.0666 MHz 1**.065
1**.0750 MHz 1**.080 1**.075
1**.0833 MHz 1**.085
1**.0916 MHz 1**.090
The adjacent channel selectivity will be slightly
degraded while receiving using 8.33 kHz channel
steps.
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