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Public Safety Band:
Same as Public Safety search band. See Page 29.
You can also turn on/off frequency sub-bands using the corresponding num-
ber keys while Spectrum Sweeper is active.
Note:
Priority mode is not available while using the Spectrum Sweeper.
Press
FUNC
then or , you can change the normal Spectrum Sweeper
operation to the Special Spectrum Sweeper operation. In the Special Spec-
trum Sweeper operation,
Sp. Sweeper
appears and the frequency range is
divided by 1 MHz segment. If you lock out 5 frequencies within a 1 MHz seg-
ment, the scanner will skip that segment in subsequent sweeps. See “Using
Spectrum Sweeper with Lockout” below.
Using Spectrum Sweeper with Lockout
The scanner’s lock out feature can be used to bypass unwanted transmissions
while using the Spectrum Sweeper. Press
L/OUT
when the scanner is stopped
on an undesired transmission. Press
FUNC L/OUT
to review or clear locked
out frequencies in the Spectrum Sweeper. You can lock out 150 frequencies
while searching all bands and 50 frequencies while searching Public Safety
frequencies.
Spectrum Sweeper functions by rapidly sweeping through the RF spectrum in
1 MHz segments. If RF signal energy is detected in a 1 MHz segment, Spec-
trum Sweeper will sweep through the 1 MHz segment in finer steps until the
source of the RF signal energy is found.
Certain segments of RF spectrum are used by high power transmitters, such
as paging transmitters. The Spectrum Sweeper can detect these transmitters
easily, even at great distances due to their high transmitter output power. You
can press
L/OUT
when the Spectrum Sweeper stops on these undesired trans-
missions to prevent the Spectrum Sweeper from stopping on them in future
sweeps, however, the Spectrum Sweeper will still see their RF signal energy
when sweeping through the 1 MHz segment. This will cause the Spectrum
Sweeper to execute another fine step search of the 1 MHz segment. Of course,
if you have locked out the undesired transmissions, the Spectrum Sweeper will
not stop on them again, however, the overall sweep performance of the Spec-
trum Sweeper will be impacted.
Spectrum Sweeper features a special lockout mode that causes the scanner
to skip a 1 MHz segment if five or more lockouts exist in that 1 MHz segment.
To activate this mode, press
FUNC
while in the Spectrum Sweeper mode. If
a 1 MHz segment contains 5 or more lockouts it will be skipped entirely while
Spectrum Sweeper is sweeping. Use
FUNC
L/OUT
to review or clear locked
Spectrum Sweeper frequencies.
To clear a locked-out frequency, select that frequency, then press
CL
.
