Radio Shack ADV0801 Owner's Manual page 25

ADV0801 Owner's Manual Draft
not interfere excessively with scanning of other object types.
Signal Stalker II Object (STLK)
A Signal Stalker Object (STLK) is a record that stores the parameters necessary for the radio to
rapidly sweep a range of frequencies for strong signals from nearby transmitters. A STLK object
can be used for standalone operation – the radio just sweeps and stops when activity is detected,
or for stalking that is performed while the radio is scanning. The radio treats STLK objects just
like any other Scannable Object when in Scan Mode. If you create a STLK 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 STLK 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 Signal Stalker II parameters
Like every other object type, there are certain parameters in a STLK record that are essential
in order for the STLK object to function correctly. By default, a newly created STLK object is
ready to go without any changes. In its default configuration, the STLK 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 STLK 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 STLK object, press PGM to place your scanner into Program Mode, then press
the NEW softkey, then press the SRCH softkey to view the available Search types, then press
the STLK softkey. By default the STLK 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 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
1: 108-137 MHz
2: 137-174 MHz
3: 216-300 MHz
4: 300-406 MHz
5: 406-470 MHz
6: 470-512 MHz
7: 764-806 MHz
8: 806-869 MHz
9: 896-1300 MHz
In Public Safety, the sub bands are defined as follows:
VHF Low Band
VHF Aircraft Band
VHF High Band
220 MHz Commercial/Amateur Band
UHF Military Air Band
UHF Band
UHF-T Band
700 MHz Band
800 MHz Band
900 MHz Band, 23 cm Amateur Band
Page 25