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SWPR objects just like any other Scannable Object when in Scan Mode. If
you create a SWPR object, assign it to a Scan List and press the SCAN key,
the radio will check for activity on all the enabled Scannable Objects - TGRP
objects, CONV objects, LMIT objects 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 transmis-
sions 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 de-
fault, 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 impor-
tant 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 fre-
quency 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 PGM to place your scanner into Pro-
gram 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
4
on the
5-way pushbutton pad. When
Public Safety
is selected, the fre-
quency sweep will be limited to those frequency ranges typically used for
Public Safety communications. Note that other radio services also use these
ranges, so don't be surprised if you occasionally hear activity that is not
Public Safety related. The sub-bands are defined as follows:
0: 25-54 MHz
VHF Low Band
1: 108-137 MHz VHF Aircraft Band
2: 137-174 MHz VHF High Band
3: 216.0025-300 MHz 220 MHz Commercial/Amateur Band
4: 300-406 MHz UHF Military Air Band
5: 406-470 MHz UHF Band
6: 470-512 MHz UHF-T Band
7: 764-767 MHz 700 MHz Band
769-776 MHz
794-796.996875 MHz
8: 806-868.9875 MHz* 800 MHz Band
9: 896-960 MHz 900 MHz Band, 23 cm Amateur Band
1240-1300 MHz
* Excludes frequencies utilized by the Cellular Mobile Radiotelephone Ser-
vice 824-848.9875 MHz and 869-893.9875 MHz.
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