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and SWPR objects. An example of when this might be handy
would be when you want to scan for activity on a collection of
TGRP and CONV objects, then do a quick sweep for
transmissions from nearby transmitters.
Essential Spectrum Sweeper parameters
Like every other object type, there are certain parameters in a
SWPR record that are essential in order for the SWPR object to
function correctly. By default, a newly created SWPR object is
ready to go without any changes. In its default configuration, the
SWPR object will sweep through all of the important land mobile
radio bands and look for strong signal activity from nearby
transmitters. As you become more familiar with SWPR operation,
you may wish to include or exclude some bands in your sweeps
to check other frequency ranges or to limit the amount of time the
scanner spends sweeping frequency ranges where local
transmitter activity is less likely. This will speed up operation, and
when used while scanning, will allow the radio to return to
scanning for activity on CONV, TGRP and other enabled objects.
To create a new SWPR object, press
into Program Mode, then press the NEW softkey, then press the
SRCH softkey to view the available Search types, then press the
SWPR softkey. By default the SWPR parameters are set for a
general purpose sweep of all important land mobile radio bands.
Optionally, you may wish to toggle the Type: field from All
Bands to Public Safety by pressing on the 5-way pushbutton
pad. When Public Safety is selected, the frequency sweep will be
limited to those frequency ranges typically used for Public Safety
communications. Note that other radio services also use these
ranges, so donʼt be surprised if you occasionally hear activity that
is not Public Safety related. The sub-bands are defined as
follows:
0: 25-54 MHz
1: 108-137 MHz
2: 137-174 MHz
VHF High Band
3: 216-300 MHz
220 MHz Commercial/Amateur Band
4: 300-406 MHz
5: 406-470 MHz
UHF Band
6: 470-512 MHz
7: 764-806 MHz
700 MHz Band
8: 806-869 MHz
800 MHz Band
9: 896-1300 MHz
In Public Safety, the sub bands are defined as follows:
PSR-500 User Manual
Page
VHF Low Band
VHF Aircraft Band
UHF Military Air Band
UHF-T Band
900 MHz Band, 23 cm Amateur Band
PGM
to place your scanner
51
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