Band Mode And Frequency Step; Changing/Resetting The Band Mode; Changing/Resetting The Frequency Step - Radio Shack REALISTIC PRO-2042 Owner's Manual

BAND MODE AND
FREQUENCY STEP
The scanner scans in the following
band modes:
• AM (amplitude modulation) — used
in aircraft bands.
• NFM (narrowband frequency modu¬
lation) — used in action bands such
as Marine, Amateur Radio, etc.
• WFM (wideband frequency modula¬
tion) — used in commercial FM
broadcasts and television sound.
This table shows the preset band
modes and frequency steps your scan¬
ner uses for each frequency range.
Frequency Range
(MHz)
Band
Mode
Frequency
Step (kHz)
25.000-29.995
AM
5
30.000-87.495
NFM
5
87.500-107.950
WFM
50
108.000-136.9875
AM
12.5
137.000-224.995
NFM
5
225.000 - 400.000
AM 12.5
400.0125 - 520.000
NFM
12.5
760.000-1300.000
NFM
12.5
If you scan some of the 225-400 MHz
and TV audio bands, you might have to
manually change the band mode or
frequency step.
Changing/Resetting the
Band Mode
To change the displayed band mode
while a frequency appears, press
MODE until the desired band mode ap¬
pears. The band mode flashes anytime
it is different from the preset band
mode. To reset the displayed band
mode to its preset, press RESET.
Notes:
• You cannot change the band mode
unless it appears on the display.
• Keep in mind that improperly
changing the band mode can cause
poor reception. For example, the
sound is distorted when you listen
to an FM broadcast or TV audio in
the NFM mode or to an Amateur
Radio in the WFM mode.
Changing/Resetting the
Frequency Step
The scanner searches at a preset fre¬
quency step (5, 12.5 or 50 kHz) for
each frequency range. However, if you
search some of the 225-400 MHz and
TV audio bands, you might have to
manually change the frequency step.
When the scanner displays a frequen¬
cy range, it also displays the frequency
step. You can change the displayed
frequency step while searching for fre¬
quencies or automatically storing fre¬
quencies.
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