RadioShack Pro 92 Handheld Trunking Scanner Owners Manual

Owner’s ManualCat. No. 20-522
PRO-92 500-Channel
Portable Trunking Scanner
Please read before using this equipment.
20-522.fm  Page 1  Friday, May 19, 2000  4:35 PM 

2
FEATURES
Your RadioShack PRO-92 500-Channel Portable Trunk-
ing Scanner is one of a new generation of scanners de-
signed to track Motorola
® Type I and Type II (such as
Smartnet® and Privacy Plus®) and hybrid analog trunking
systems, plus GE/Ericsson (EDACS®) and EF Johnson
(LTR®) type systems, which are extensively used in many
communication systems. 
Trunking communications systems let a large group of 2-
way radio users (or even different groups of 2-way radio
users) efficiently use a set of...

3
Your scanner includes these special features:
Simultaneous Trunking Operation — tracks three
trunking systems, LTR, Motorola, and EDACS at the
same time, as well as conventional systems.
Text Input — lets you input a text label for each channel,
talk group ID, bank, or other memory so you can easily
know about the transmission you are hearing.
Subaudible Tone Decode — decodes and displays the
Continuous Tone Coded Squelch System (CTCSS) tone
signal being transmitted.
Digital Subaudible Tone Decode —...

4
60 Preprogrammed Frequency Ranges — let you
search for transmissions within preset frequency ranges
or within ranges you set, to reduce search time and select
interesting frequencies more quickly.
Scan Delay — delays scanning for about 2 seconds be-
fore moving to another channel in conventional mode, so
you can hear more replies that are made on the same
channel.
Priority Channel — you can set the scanner to check
one channel every 2 seconds so you do not miss impor-
tant calls.
Signal Attenuation...

5
Three Power Options — let you power the scanner with
internal batteries (non-rechargeable batteries or re-
chargeable batteries). You can also use an AC adapter
(not supplied) or power the scanner in a vehicle using a
DC adapter (not supplied).
Supplied Police Call Trunking Guide — provides a
quick reference to public safety trunking radio systems in
the United States.
Your PRO-92 scanner can receive these frequencies:
• 29–54 MHz
• 108–136.9875 MHz
• 137–174 MHz
• 380–512 MHz
• 806–823.9875 MHz
•...

6
If you cannot eliminate the interference, the FCC requires
that you stop using your scanner.
This device complies with Part 15 of the 
FCC Rules. Op-
eration is subject to the following conditions: (1) This de-
vice must not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
Note: Mobile use of this scanner is unlawful or requires a
permit in some areas. Check the laws in your area.
SCANNING LEGALLY
Scanning...

7
CONTENTS
Preparation ................................................................  10
Power Sources  ....................................................  10
Using Batteries  .............................................  10
Charging Rechargeable Batteries  ................  13
Using AC Power  ...........................................  14
Using Vehicle Power  ....................................  15
Connecting the Antenna  ......................................  16
Connecting an Optional Antenna...

8
Storing a Frequency While Searching for a 
Specified Channel  ........................................  42
Changing a Search Range with 
One of the 60 Preprogrammed Ranges  .......  43
Manually Changing a Search Range  ...........  43
Scanning the Channels  .......................................  44
Turning Channel-Storage 
Banks Off and On .........................................  44
Manually Tuning a Frequency  .............................  45
Deleting Frequencies from Channels  .....................

9
Clearing Talk Group ID’s  ..............................  62
Clearing All Talk Group ID’s
in One Bank  ..................................................  63
Open and Closed Modes  .....................................  63
Changing the Open/Closed Mode  ................  64
A General Guide to Scanning  ..................................  65
Guide To Frequencies  .........................................  65
US Weather Frequencies  .............................  65
Ham Radio Frequencies...

10
PREPARATION
POWER SOURCES
You can power your scanner from any of three sources:
• internal non-rechargeable batteries or rechargeable
batteries (not supplied — see “Using Batteries”)
• standard AC power (with an optional AC adapter —
see “Using AC Power” on Page 14)
• vehicle power (with an optional DC adapter — see
“Using Vehicle Power” on Page 15)
Notes:
• Connecting an AC or DC adapter to the scanner dis-
connects internal batteries when you use the sup-
plied non-rechargeable battery holder, but...