PRO-92 500-Channel Portable Trunking Scanner
(200-0522)                 Features                   Faxback Doc. # 58066

Your RadioShack PRO-92 500-Channel Portable Trunking Scanner is one of a 
new generation of scanners designed 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 
frequencies. Instead of selecting a specific frequency for a transmission, 
the user simply selects a talk group.  The trunking system automatically 
transmits the call on the first available frequency, and also sends a code 
that uniquely identifies that transmission.

Since the trunking system might send a call and its response on different 
frequencies, it is difficult to listen to trunked communications using a 
regular scanner.  The PRO-92 monitors the data sent with a 2-way radio 
transmission, so you can hear the call and response for that user and more 
easily "follow" the conversation.

The scanner also lets you scan conventional transmissions, and is 
preprogrammed with service search banks for convenience.  By pressing a 
single button, you can quickly search those frequencies most commonly used 
by public service and other agencies without tedious and complicated 

This scanner gives you direct access to over 33,000 frequencies including 
those used by police and fire departments, ambulance services, government 
agencies, air, and amateur radio services.

Your scanner includes these special features:

     Simultaneous Trunking - tracks three trunking systems, LTR, Motorola 
                 Operation   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 transformed.

   Digital Subaudible Tone - decodes and displays the Digital Coded
                    Decode   Squelch (DCS) being received.
      12-Character, 4-Line - shows you detailed operating information and 
        Dot Matrix Display   lets you easily program the scanner.
              Data Cloning - lets you transfer the programmed data to 
                             another PRO-92 scanner.  You can also upload
                             or download the programmed data to or from a
                             PC using an optional interface kit.

  10 Channel-Storage Banks - let you store 50 channels in each bank to
                             group channels so calls are easier to

         Triple Conversion - virtually eliminates any interference from
  Superheterodyne Receiver   intermediate frequency (IF) images, so you
                             hear only the frequency you select.

 Hyperscan and Hypersearch - the scanner scans at up to 25 channels per
                             second and searches at up to 50 steps per
                             second, to help you quickly find interesting

60 Preprogrammed Frequency - let you search for transmissions within
                    Ranges   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 before
                             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 important

        Signal Attenuation - lets you program each memory to reduce the
               (Attenuate)   scanner's sensitivity to storing local
                             signals, to reduce interference or noise
                             caused by these signals.

             Weather Alert - automatically sounds the alarm tone to advise
                             or hazardous weather conditions when it
                             detects the alert signal on the local
                             National Oceanic and Atmospheric
                             Administration (NOAA) weather channel.

       Weather SAME Decode - displays the weather event text so you can
                             see the reason for the alert.

         Lock out Function - lets you set your scanner to skip over 
                             specified channels or frequencies when 
                             scanning or searching, and skip over IDs when
                             Tracking trunked systems.

                  Key Lock - lets you lock the scanner's keys to help
                             prevent accidentally changing the scanner's

 Flexible Antenna with BNC - provides excellent reception and is designed 
                 Connector   to help prevent antenna breakage. 
             Memory Backup - keeps the frequencies stored in memory for an
                             extended time even without a battery.

       Three Power Options - let you power the scanner with internal
                             batteries (non-rechargeable batteries or
                             rechargeable batteries).  You can also use an
                             AC adapter (not supplied) or power the
                             scanner in a vehicle using a DC adapter (not

      Supplied Police Call - provides a quick reference to public safety
                  Trunking   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

    849 - 868.9875 MHz

    894 - 960 MHz

This Owner's Manual also includes the section "A General Guide to 
Scanning" in Faxback Doc. # 17653 to help you target frequency ranges in 
your service area so you can search for a wide variety of transmissions.

FCC Notice

Your scanner might cause TV or radio interference even when it is 
operating properly.  To determine whether your scanner is causing the 
interference, turn off your scanner.  If the interference goes away, your 
scanner is causing the interference.  Try the following methods to 
eliminate the interference.

  Move your scanner away from the TV or radio.

  Connect your scanner to an outlet that is on a different electrical 
  circuit from the TV or radio.

  Contact your local RadioShack store for help.

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.  Operation is subject 
to the following conditions (1) This device 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 is a fun and interesting hobby.  You can hear police and fire 
departments, ambulance services, government agencies, private companies, 
amateur radio services, aircraft, and military operations.  It is legal to 
listen to almost every transmission your scanner can receive.  However, 
there are some electronic and wire communications that are illegal to 
intentionally intercept.  These include:

  Telephone conversations (cellular, cordless, or other private means of 
  telephone signal transmission)

  Pager transmissions.	

  Scrambled or encrypted transmissions.

According to the Federal Electronic Communications Privacy Act (ECPA), as 
amended, you could be fined and possibly imprisoned for intentionally 
listening to, using, or disclosing the contents of such a transmission 
unless you have the consent of a party to the communication (unless such 
activity is otherwise illegal).  These laws change from time to time and 
there might be state or local laws that also affect legal scanner usage.

(BR EB - 12/17/99)

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