20-522AD.fm Page 1 Tuesday, May 9, 2000 1:13 PM
PRO-92 500-Channel Portable Trunking Scanner
ADDENDUM — Please read before using this equipment.
ADDENDUM FOR OPTIONAL
ENHANCEMENT VERSION
This addendum describes the changed operations of your scanner.
Monitoring/Identifying Talk Groups
For EDACS and Motorola (above 806 MHz range) trunking systems, the scanner monitors the control channel between each transmission to identify talk groups. For some Motorola (under 512 MHz range) and LTR systems, the scanner uses the subaudible data sent with each transmission to identify talk groups.
Locking Out Data Channels
If you are scanning VHF and UHF trunking frequencies under the 512 MHz range using subaudible data and are not using a base frequency and offset, lock out all data channels. See “Locking Out Channels or Frequencies” on Page 48. Turn off the scanner to remove the lockouts.
Receiving Motorola Trunking Systems in the
UHF-Lo Band
You can program the scanner to receive transmissions in the UHFLo band (380–512 MHz) of the Motorola trunking system. You can receive these transmissions by:
•Checking the trunking system’s control channel. You must program the system’s base frequency and offset frequency to do this.
•Decoding the subaudible data transmitted with the signals. When you do this, the scanner might detect wrong IDs, but you can easily receive trunking frequencies without programming the base and offset frequencies.
Notes:
•Base and offset frequencies vary for each type of trunking system. You can get information about these frequencies for the trunking system you want to scan using www.trunkscanner.com, other Internet sources, or locally published guide-
Programming Motorola Trunking Frequencies in the
UHF-Lo Band
1.Select the bank, then press PGM to enter the program mode.
2.Store the base frequency into channel 00 of the bank you selected, then store the trunking frequencies into subsequent channels in the same bank (see “Storing a Frequency While Searching for a Specified Channel” on Page 42).
Note: You must store frequencies using the subaudible trunking method in banks mode by mode.
3.Press TRUNK then repeatedly press MODE to select MO (Motorola).
4.Press FUNC then 9. 12.5 kHz (the default offset frequency) appears.
5.Repeatedly press FUNC then 9 to select the offset frequency you want (12.5 kHz, 25.0 kHz, or 50 kHz).
Note: Offset frequencies above 50 kHz do not appear and are used only for subaudible decoding mode.
6.Program the trunking frequencies (see “Programming Trunking Frequencies” on Page 58).
Setting Squelch for Trunk Scanning
Your scanner automatically mutes the audio during trunk scanning when it decodes control channel data. However, we recommend you turn SQUELCH clockwise and leave it set to a point just after the hissing sound stops. This lets the scanner quickly acquire the data channel.
Using an Optional PC Interface Kit
You can increase the number of preprogrammed frequency ranges your scanner can receive (up to 100) using an optional PC interface kit (available at your local RadioShack store).
Using the Supplied Clone Cable
books.
•The scanner automatically decodes subaudible data it receives in the VHF band.
•If you try to enter an offset frequency in the VHF and UHF-Hi bands (137 to 174 and 806 to 960 MHz), the scanner will ignore the entry.
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
You can transfer the programmed data to and from another RadioShack Cat. No. 20-522A or Cat. No. 20-196 scanner using the supplied clone cable.
Pausing on a Frequency
To pause on a frequency, press FUNC then TUNE when the scanner stops on the frequency, or turn SQUELCH counterclockwise.
20-522
05A00 Printed in Japan
©2000 Tandy Corporation. All Rights Reserved.
RadioShack and RadioShack.com are trademarks used by Tandy Corporation.
Loading...