Radio Shack PRO-92 User Manual

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 (abov e 80 6 MH z 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 sy stems, the scanner uses the subau dib le da ta 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.

Programming Motorola T runking Frequencies in the
UHF-Lo Band

1. Select the bank, then press

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.

TRUNK

3. Press
ola).

4. Press
appears.

5. Repeatedly press
you want (

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
Frequenci es” on Page 58).

then repeatedly press

FUNC

then 9.

FUNC

12.5 kHz, 25.0 kHz

PGM

to enter the program mode.

MODE

to select MO (Motor-

12.5 kHz

then 9 to select the offset frequency

(the default offset frequency)

50 kHz

, or

).

Setting Squelch for Trunk Scanning

Your scanner automatically mutes the audio during trunk scanning
when it decodes control channel data . Howev er, we recom mend yo u

SQUELCH

turn
ing sound stops. This lets the scann er quick ly acqui re the data chan­nel.

clockwise and le ave it set to a p oint ju st afte r the h iss-

Using an Optional PC Interface Kit

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

ner.com

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

, other Internet sources, or locally published guide-

www.trunkscan-

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

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
stops on the frequency, or turn

FUNC

SQUELCH

TUNE

then

counterclockwise.

when the scanner

20-522

05A00

Printed in Japan

2000 Tandy Corporation.

©

RadioShack and RadioShack.com are trademarks used by Tandy Corporation.

All Rights Reserved.

20-522AD.fm Page 2 Tuesday, May 9, 2000 1:13 PM

Changes to “Clearing All Lock Out Frequenci es in a
Search Bank” on Page 50 of your Owner’s Manual

• Step 1 should read “Press

• Step 2 should read “Select the search bank from which you
want to clear all locked-out frequencies using or .

• Please add “Press

SEARCH

FUNC

then press

to continue searching” as Step 4.

SEARCH

. “

Changes to “Changing the Frequency Step” on
Page 54 of your Owner’s Manual

• Step 3 should read “Turn
the indicator points to

**PAUSED**

• Step 5 should read “T urn
a point just after the hissing noise” instead of “Press

STEP

to return to scanning.”

appears on Line 3.

SQUELCH

MIN

” instead of “Press

SQUELCH

fully counterclockwise until

clockwise and leave it set to

FUNC

then

FUNC

STEP

then

Digital Weather Alert Feat ure

This feature superced es “Wea the r Alert Fea ture ” on Pa ge 47 o f yo ur
Owner’s Manual.

The weather serv ice precedes each weather alert with a digitally­encoded SAME signal, then a 1050 Hz tone. You can set the scan­ner so, if you are monitoring a weather channel with a digitally­encoded SAME signal when an alert is broadcast, the scanner will
decode and display the SAME message, showing the type of alert
being broadcast (or
the event co de).

Unknown Message

if it does not recognize

.”

To set the scanner to decode and display SAME messages, press

FUNC

then WX while you listen to the weather channel.

STBY

To turn off SAME standby mode, press

STBY

Notes:

• The scanner does not display the actual location referenc ed by

• Your scanner can also receive weather alert tones (see “Prior-

Cancel: F+WX

and

disappears.

SAME messages. It uses only the message portion of the
SAME signal.

ity” on Page 51).

appear.

FUNC

then WX.

DIG WX

DIG WX

2