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UNDERSTANDING
BAND
MODES
AND
FREQUENCY
STEPS
We
designed
your
scanner to
adjust itself for
the
band
modes
and frequency
steps for
each frequency
range.
Default
settings
are as shown
below.
FREQUENCY
VS. MODE
AND
STEP
WFM:
Wideband
FM for normal
FM
broadcasts
or
TV
sound.
NFM: Narrowband
FM for
action
radio
bands,
police,
fire,
ambulance,
ham radio,
and
so on.
AM:
For
aircraft band,
CB, and
so on.
22
Normally,
the
preset
mode/step
works within
each
band
as
shown
above. However, for
some
of
the ham
radio,
military
aircraft
(225400
MHz),
and TV
audio
WFM)
bands,
you
must
change the mode
or step manually.
To
change the
band
mode,
press
[MODE]
when
your
scanner is
in
manual
mode.
To
change the
frequency
step,
press
[STEP]
in
search
mode.
Note that
when
you
change the
preset
modes/steps,
the
corresponding
indicator
flashes
to
show
you
that
you
changed the
default
setting.
When
you
want
to return
to the
default
setting,
press
IRESETI.
The
display stops flashing.
Keep
in mind
that improperly
setting the
modes
or
steps
can
cause
poor
reception.
When
you
listen to
an
FM
broadcast
or TV
sound
in
the NFM
mode, the
sound is very
distorted. lf
you
monitor
police
band in WFM
mode,
the
sound is masked
by noise.
Or if
you
use
5
kHz
or 12.5
kHz
steps to
search for FM
broadcasts
or
TV
sound, the
search
might
stop on
the
sideband
of
the frequency.
In
that
case,
press
I
r,
]
or
Iv]
to
get
the
center frequency.
lf
you
use
50
kHz
steps
for NFM
band,
you
might
miss the
frequencies
between the
50
kHz
steps.
FREQUENCY (MHz)
MODE
STEP
(kHz)
25.000
-
29.995
30.000
-
87.495
87.500
-
107.995
108.000
-
135.995
136.000
-224.995
225.000
-
520.000
760.000
-
1300.000
AM
NFM
WFM
AM
NFM
NFM
NFM
5
5
50
12.5
5
12.5
12.5