Radio Shack 2000466 Users manual

20-466 Owner’s Manual

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PRO-2053
Base Scanner

Owner’s Manual
Please read before using this equipment.

Contents

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© 2001 RadioShack Corporation.
All Rights Reserved.
RadioShack, RadioShack.com, and Adaptaplug are registered trademarks used by Tandy Corporation.
Hypersearch and Hyperscan are trademarks used by Tandy Corporation.
Motorola, Smartnet and Privacy Plus are registered trademarks of Motorola Inc.
EDACS is a registered trademark of GE/Ericsson Inc.

Features

Your RadioShack Base Scanner is one of a new generation of scanners designed to track Motorola® Type
I and II (such as Smartnet® and Privacy Plus®) and hybrid analog trunking systems, and GE/Ericsson
(EDACS®) 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 2­way 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 scanner 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 programming.

This scanner gives you direct access to over 59,000 frequencies including those used by police and fire
departments, ambulance services, government agencies, air, and amateur radio services.

Your scanner includes these features:

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Simultaneous Trunking Operation – tracks two trunking systems (Motorola and EDACS) and conventional
systems at the same time.

10 Channel-Storage Banks – let you store 30 channels in each bank (300 channels) to group channels so
calls are easier to identify.

10 ID-Storage banks – let you store 1,000 IDs in 10 ID banks, 5 sub-ID banks, 20 IDs are programmed in
each 5 sub-ID banks and let you easy identify the ID code.

12-Character, 4-Line, Dot-Matrix Display – shows you detailed operating information and lets you easily
program the scanner.

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

Digital Weather Alert – displays the weather event text with three alert levels so you can see and hear the
reason for the alert.

Preprogrammed Frequency Ranges – lets you search for transmissions within preset frequency ranges or
within ranges you set, to reduce search time and select interesting frequencies more quickly.

Data Cloning – lets you transfer the programmed data to another PRO-2053 or PRO-93 scanner. You can
also upload or download the programmed data to or from a PC using an optional interface kit.

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

Hyperscan TM and Hypersearch TM – the scanner scans and searches at up to 60 steps per second, to
help you quickly find interesting transmissions.

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 calls.

Signal Attenuation (Attenuate) – lets you program in your scanner to reduce the scanner’s sensitivity to
strong local signals, to reduce interference or noise caused by these signals.

Text Input – lets you input a text label for each channel, talk group ID, bank, or other memory location so
you can easily know about the transmission you are hearing.

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.

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Key Lock – lets you lock the scanner’s keys to help prevent accidentally changing the scanner’s
programming.

Telescoping Antenna – lets the scanner receive strong local signals.

External BNC Antenna Connector – lets you connect an external antenna (not supplied) to the scanner.

Memory Backup – keeps the frequencies stored in memory for an extended time even without internal
batteries.

Supplied Police Call Trunking Guide – provides a quick reference to public safety trunking radio systems in
the United States.

WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rain or moisture.

Your scanner can receive these frequencies:

. 25—54 MHz
. 108—136.9875 MHz
. 137—174 MHz
. 216—225 MHz
. 406—512 MHz
. 806—823.9875 MHz
. 849—868.9875 MHz
. 894—960 MHz
. 1240—1300 MHz

This Owner’s Manual also includes the section “A General Guide to Scanning” on Page XX 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.

SCANNING LEGALLY

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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 possible 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.

Preparation

POWER SOURCES

Using AC Power

You can power the scanner using the supplied 12V, 500mA AC adapter.

Cautions:
.! You must use a Class 2 power source that supplies 12V DC and delivers at least 500 mA. Its center tip
must be set to positive and its plug must fit the scanner’s DC12V jack. The supplied adapter meets these
specifications. Using an adapter that does not meet these specifications could damage the scanner or the
adapter.

. Always connect the AC adapter to the scanner before you connect it to AC power. When you finish,
disconnect the adapter from AC power before you disconnect it from the scanner.

Warning: To prevent electric shock, do not use the AC adapter’s polarized plug with an extension cord,
receptacle, or other outlet unless you can fully insert the blades to prevent blade exposure.

Follow these steps to power the scanner from a standard AC outlet.

1. Insert the AC adapter’s barrel plug into the DC12V jack on the back of the scanner.

2. Plug the adapter into a standard AC outlet.

Using Vehicle Battery Power

You can power the scanner from a vehicle’s 12V power source (such as a cigarette-lighter socket) using a
DC cord with a size M Adaptaplug connector (neither supplied). Both are available at your local

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RadoShack store.

Cautions:

! You must use a power cord that can carry 12V DC and at least 500 mA. Its center tip must be set to
positive and its plug must fit the scanner’s DC 12V jack. Using a cord that does not meet these
specifications could damage the scanner or the cord.
. Always connect the DC cord to the scanner before you connect it to the power source. When you finish,
disconnect the cord from the power source before you disconnect it from the scanner.

Follow these steps to power the scanner from a vehicle’s cigarette-lighter socket.

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1. Set the center chip positive (+).

2. Insert the cord’s barrel plug into the DC 12 V jack on the back of the scanner.

3. Plug the cord into the vehicle’s cigarette-lighter socket.

Notes:
. If the scanner does not operate properly when you connect a DC adapter, unplug the DC adapter from
the cigarette-lighter socket and clean the socket to remove ashes and other debris.
. If you use a 12V DC cord and your vehicle’s engine is running, you might hear electrical noise on the
scanner caused by the engine. This is normal.
. Mobile use of this scanner is unlawful or requires a permit in some areas. Check the laws in your area.

CONNECTING THE ANTENNA

Connecting the Supplied Antenna

You must install an antenna before you can operate the scanner.

The supplied telescoping antenna helps your scanner receive strong local signals. To install the antenna,
thread it clockwise into the hole on top of the scanner.

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The scanner’s sensitivity depends on its location and the antenna’s length. For the best reception of the
transmissions you want to hear, adjust the antenna’s length according to the chart below.

Frequency Antenna Length

---------------------------------------------------------------------------­25-54 MHz Extend fully
108-174 MHz Extend 4 segments
216-225 MHz Extend 3 segments

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406-1300 MHz Collapsed fully

Connecting an Outdoor Antenna

Instead of the supplied antenna, you can connect an outdoor base-station or mobile antenna (neither
supplied) to your scanner. Your local RadioShack store sells a variety of antennas. Choose the one that
best meets your needs.

When deciding on an outdoor antenna and its location, consider these points.

When deciding on an outdoor antenna and its location, consider these points:

. The antenna should be located as high as possible.
. Then antenna and antenna cable should be as far as possible from sources of electrical noises
(appliances, other radios, and so on).
. The antenna should be vertical for the best performance.

To connect an optional base-station or mobile antenna, first remove the supplied antenna from the scanner.
Always use 50 ohm coaxial cable, such as RG-58 or RG-8, to connect the base-station or mobile antenna.
For lengths over 50 feet, use RG-8 low-loss dielectric coaxial cable. If the antenna’s cable does not have a
BNC connector, you will also need a BNC adapter (also available at your local RaddioShack store). Your
local RadioShack store carries a wide variety of coaxial antenna cable and connectors.

Once you choose an antenna, follow the mounting instructions supplied with the antenna. Then route the
antenna’s cable to the scanner and connect the cable to the ANT connector.

Warning: Use extreme caution when installing or removing an outdoor antenna. If the antenna starts to fall,
let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the
antenna, mast, cable or guy wires can cause electrocution and death! Call the Power Company to remove
the antenna. Do not attempt to do so yourself.

Caution: Do not run the cable over sharp edges or moving parts that might damage it.

CONNECTING AN EARPHONE/HEADPHONES

For private listening, you can plug an earphone or mono/stereo headphones (not supplied), available at
your local RadoShack store, into the (headphone symbol) front on top of your scanner. This automatically
disconnects the internal speaker.

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Listening Safely

To protect your hearing, follow these guidelines when you use an earphone or headphones:

. Do not listen at extremely high volume levels. Extended high-volume listening can lead to permanent
hearing loss.

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. Set the volume to the lowest setting before you begin listening. After you begin listening, adjust the
volume to a comfortable level.
. Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume
level that does not cause discomfort might still damage your hearing.

CONNECTING AN EXTENSION SPEAKER

In a noisy area, an external speaker (not supplied), available at your local RadioShack store, might provide
more comfortable listening. Plug the speaker cable’s 1/8-inch (3.5 mm) mini-plug into your scanner’s
speaker jack on the back. This automatically disconnects the internal speaker.

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CONNECTING THE CLONE CABLE

You can transfer the programmed data to and from another PRO-2053 or PRO-93 using the clone cable
(not supplied). We recommend to use RadioShack Cat. No. 42-2420. Connect the cable between each
scanner’s PC/IF jacks. See “Cloning the Programmed Data from Scanner to Scanner” on Page XX. You
can also upload or download the programmed data to or from a PC using an optional PC interface kit
available by special order from your local RadioShack store.

About Your Scanner

Once you understand a few simple terms used in this manual and familiarize yourself with your scanner’s
features, you can put the scanner to work for you. You simply determine the type of communications you
want to receive, then set the scanner to scan them.

A frequency is the receiving signal location (expressed in kHz or MHz). To find active frequencies, you can
use the search function.

You can also search the SEARCH banks, which are preprogrammed frequencies in the scanner’s memory
(see “Searching a Preprogrammed Frequency Range” on Page XX for the frequency list). You can change
the SEARCH frequency ranges in search bank 5.

When you find a frequency, you can store it into a programmable memory location called a channel, which
is grouped with your other channels in a channel-storage bank. You can then scan the channel-storage
banks to see if there is activity on the frequencies stored there. Each time the scanner finds an active
frequency, it stays on that channel until the transmission ends. See “Trunking Operation” on Page XX for
terms related to trunking systems.

A LOOK AT THE KEYPAD

Your scanner’s keys might seem confusing at first, but this information should help you understand each
key’s function.

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SCAN – scans through the programmed channels.

FUNC (function) – lets you use various functions by pressing this key along with other keys.

MAN – stops scanning and lets you directly enter a channel number.

WX – scans through the 7 preprogrammed weather channels.

TRUNK – stores the trunking ID code or holds the trunking ID while scanning.

PRI (Priority) – sets and turns the priority function on or off.
TUNE – lets you input a frequency and allows you to fine tune a frequency along with /¥ or ¥/.
ATT (Attenuate) – turns attenuation on to reduce the scanner’s sensitivity, or turns it off to increase it.
TEXT – lets you input text.

PAUSE – stops search or scan.

/¥ or ¥/ – selects the search direction during frequency search or tuning.

L/OUT (Lock Out) – lets you lock out a selected channel, skip a specified frequency during search, or lock
out a selected ID code.

CLEAR – clears an incorrect entry.

MODE – changes the receive mode (AM, FM, MO, ED). See “Changing the Receive Mode” on Page XX.

SEARCH – lets you search the ten search banks.

PROG – programs frequencies into channels.

1 – enters a 1, or inputs characters 0 through 9.

2/ABC – enters a 2, or inputs characters A, B, or C.

3/DEF – enters a 3, or inputs characters D, E, or F.

4/GHI – enters a 4, or inputs characters G, H, or I.

5/JKL – enters a 5, or inputs characters J, K, or L.

6/MNO – enters a 6, or inputs characters M, N, or O.

7/PQRS – enters a 7, or inputs characters P, Q, R, or S.

8/TUV – enters a 8, or inputs characters T, U, or V.

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9/WXYZ – enters a 9, or inputs characters W, X, Y, or Z.

0 – enters a zero, or inputs characters . , -, #, _, @, +, *, &, /, ‘, $, %, !, ^, (, ), ?, ->, `, and <-.

./DELAY – enters a decimal point (necessary when programming frequencies), space, or programs a 2­second delay for the selected channel/search bank, or hyphen (in Motorola type I code setting).

ENTER – lets you complete the entry of frequencies and text.

A LOOK AT THE DISPLAY

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UNDERSTANDING BANKS

Channel Storage Banks

To make it easier to identify and select the channels you want to listen to, channels are divided into 10
banks (0—9) or 30 (00 to 29) channels each. Use each channel-storage bank to group frequencies, such
as those used by the Marine, CB, Police, Fire, Aircraft and Ham (see “Typical Band Usage” on Page XX).
For example, police department might use four frequencies, one for each side of the town. You could
program the police frequencies starting with 000 (the 1st channel in bank 0) and program the fire
department frequencies starting with 100 (the 1st channel in bank 1). The 1st digit identifies the bank (0-9).
The 2nd and 3rd digits identify the channel within the bank (00-29).

Search Banks

This scanner has five preprogrammed search bands plus one limit search band. You can set the lower and
higher frequency limit in limit search band. (For the default setting, see “Searching a Preprogrammed
Frequency Range” on Page XX.)

UNDERSTANDING YOUR SCANNER’S MODES

You can program each channel with any of four receive modes except VHF band. Each mode affects how
your scanner operates when scanning and receiving transmissions, and also affects what transmissions
you receive when you set the scanner to the closed mode (see “Open and Closed Modes” on Page XX).
The following sections describe each mode and how they affect your scanners operation. See “Changing
the Receive Mode” on Page XX.

In all major metropolitan areas of the United States, every available radio channels is assigned to more
than one user. Public safety radio systems on the same frequency are usually set up at a distance of 40
miles apart, or more. This means that you may hear transmissions from a distant system when your local
system is not transmitting.

Open and Closed Modes

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You can set your scanner to change the way it receives signals. These settings, called open mode and
closed mode, affect how the scanner receives signals from communications systems that use some type
of closed squelch (such as MOT, and ED systems).

You can set each of the scanner’s channel storage banks to open or closed mode.

In open mode, the scanner scans signals transmitted in all systems. In closed mode, the scanner scans
signals transmitted only under the following conditions:

. When the signals are in the FM mode.
. When the signals are in the MO, or ED mode and the signal’s ID code matches the programmed ID code.

You can also select the users or talk groups you want the scanner to receive in closed mode.

When you set a channel storage bank to open mode, + (open) appears under the bank’s number while
scanning. When you set a channel storage bank to closed mode, - (closed) appears under the channel
storage bank’s number while scanning. Or, OPEN or CLOSED appears while the scanner is in manual
mode or while the scanner is receiving a signal during scanning.

See “Changing the Open/Closed Mode” on Page XX for more information about setting the open and
closed modes.

AM Mode

This sets the scanner to receive transmissions using amplitude modulation (AM). AM is used for aircraft,
military, some amateur radio, and some government transmissions. When the scanner receives a
transmission on a channel set to the AM mode, it always stops on the transmission.

FM Mode

This sets the scanner to receive transmissions using frequency modulation (FM). FM is used for most
public safety transmissions, as well as broadcast, business, and amateur radio transmissions. When the
scanner receives a transmission on a channel set to the FM mode, it always stops on the transmission.

Motorola Mode

You can set your scanner so it decodes the talk group IDs used with Motorola trunking systems. This
setting is called the Motorola mode.

Motorola systems are trunking systems used primarily by business and public safety groups to efficiently
allocate a small number of frequencies (as few as 5) to many groups of users (as many as several
thousand). To do this, each group of users in the system is assigned to a specific talk group. For example,
the east side patrol officers might all be assigned to talk group 2160. One channel in the system is
continuously transmitting data that identifies which talk groups are active on which channel. In addition,
this talk group information is also transmitted as subaudible data on each active channel.

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When the scanner receives a transmission on a channel set to the Motorola mode, it first decodes the talk
group ID data included with the transmission. In the open mode, the scanner stops on the transmission
and displays the talk group ID on the bottom line of the display. In the closed mode, the scanner only stops
on the transmission if the talk group ID matches a talk group ID that you have stored in the bank’s talk
group ID list and have not locked out.

Motorola trunking systems come in three categories: Type I, Type II, and Type I/II Hybrid. Each category
displays and uses talk group IDs in slightly different ways.

Motorola Type I IDs are in the form FFF-SS, where:

FFF=Fleet ID
SS=Subfleet ID

Type I systems are usually organized with different user groups assigned to different fleets. For example, a
valid fleet/subfleet ID identifying all detectives within a police department might be 000-12, where 000
identifies all police users and 12 identifies the Detective division.

To properly map the raw Type I data to the correct fleet-subfleet format, you must program the correct fleet
map into the scanner. Fleet map information is widely available on the Internet for most Type I systems in
use.

Type II system talk groups are identified by a 5-digit number. Valid talk group IDs are divisible by 16. If you
try to enter an invalid talk group ID, the scanner rounds the ID down to the next valid ID.

Type I/II hybrid systems use both fleet-subfleet and 5-digit formats for talk group IDs.

Note: If the scanner decodes control channel data while receiving transmissions from a Motorola trunking
system, CNTRL appears on the bottom line of the display.

EDACS Mode

You can set your scanner so it decodes the talk group IDs used with EDACS (GE/Ericsson) trunking
systems. This setting is called the EDACS mode.

EDACS systems are trunking systems used primarily by business or private communications service
providers, as well as by some public safety organizations. EDACS systems transmit active talk group
information only on a dedicated control channel.

EDACS frequencies are organized in a specific order. Each frequency is assigned a Logical Channel
Number (LCN). For the scanner to correctly switch to an active frequency, you must program the
frequencies in LCN order, starting with Memory 01. EDACS talk group IDs are entered as a 4-digit decimal
number from 0001 to 2047 or AFS (Agency Fleet Subfleet) number from 00-001 to 15-157.

When there is activity on an EDACS system, that information is sent out on the control channel. The
scanner decodes the ID for the active talk group. In the open mode, the scanner then goes to the
transmission and displays the talk group ID on the bottom line of the display. In the closed mode, the

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scanner only goes to transmissions with IDs that match talk group IDs you have stored in the bank’s talk
group ID list which are not locked out.

Because EDACS scanning requires clear reception of the control channel at all times, EDACS systems
tend to have a smaller usable area. An external antenna can greatly improve EDACS scanning in a fringe
area. If you are having trouble scanning an EDACS system, try manually selecting the data channel. If you
are getting good reception, the scanner will indicate talk group CTL-01. Try changing your location or using
an outdoor antenna to improve reception.

Operation

TURNING ON THE SCANNER AND SETTING SQUELCH

1. Turn SQUELCH fully counterclockwise until the indicator points to MIN before you turn on the scanner.

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2. To turn on the scanner, turn VOLUME clockwise. Welcome To Dual Trunking appears. After about 3
seconds, you hear a hissing sound.

3. Turn SQUELCH clockwise, just until the hissing sound stops.

4. To turn off the scanner when you finish, turn VOLUME counterclockwise to OFF.

Notes:

• The scanner does not scan if there are no frequencies stored in channels. If the scanner does not scan
and you have already stored frequencies in channels, turn SQUELCH further clockwise.

• If the scanner picks up unwanted, partial, or very weak transmissions, turn SQUELCH clockwise to
decrease the scanner’s sensitivity to these signals. If you want to listen to a weak or distant station, turn
SQUELCH counterclockwise.

• If SQUELCH is adjusted so you always hear a hissing sound, the scanner will not scan properly.

• To ensure the scanner operates properly while in the trunking mode, we suggest you set SQUELCH
using the above steps, even if the scanner is automatically muted.

STORING KNOWN FREQUENCIES INTO CHANNELS

Good references for active frequencies are RadioShack’s Police Call, Aeronautical Frequency Directory,
and Maritime Frequency Directory. We update these directories every year, so be sure to get a current
copy. Also see the supplied Police Call Trunking Guide.

Follow these steps to store frequencies into channels.

1. Press MAN, enter the channel number where you want to store a frequency, then press MAN again. M
and the channel number appear at the upper left corner of the display (for example: M100).

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Notes:
You can also select your desired bank and channel number by follow those steps while program mode.

1). Press FUNC then press /¥ or ¥/. The bank number moves upward (downward).

2). Press FUNC then press and hold /¥ or ¥/. The bank number moves continuously upward (downward).

3). Press PROG or /¥. The channel number moves upward one by one.

4). Press ¥/. The channel number moves downward one by one.

2. Press PROG. M changes to P.

3. Use the number keys and •/DELAY to enter the frequency (including the decimal point) you want to
store.

If you make a mistake, press CLEAR to delete a single digit and press and hold CLEAR about 2 seconds
to delete all digits.

4. Press ENTER to store the frequency into the channel. The blinking cursor disappears.

Notes:

• If you made a mistake in Step 3, Invalid Freq briefly appears and the scanner beeps when you press
ENTER. Starts again from Step 3.

• Your scanner automatically rounds the entered frequency to the nearest valid frequency. For example, if
you enter a frequency of 151.553, your scanner accepts it as 151.550.

• Press •/DELAY to turn the delay function on or off. To have the scanner pause for 2 seconds on this
channel after a transmission before proceeding to the next active transmission, see “Using the Delay
Function” on Page XX. The scanner stores this setting in the channel.

• If you are storing frequencies for an EDACS system, you must store them in logical channel number
order, with the first frequency in channel 1 for the current bank.

5. If necessary, press MODE to change the receiving mode.

6. If desired, program a text tag for the channel (see “Assigning a Text Tag to a Channel”).

7. The next channel in sequence is ready for programming. Press PROG and then repeat Steps 3 through

6.

以下を STORING KNOWN FREQUENCIES INTO CHANNELS の次に入れる

STORING TRUNKING FREQUENCIES INTO CHANNELS

1. Press PGM and FUNC then up or down to select desired bank to program.

2. Press TRUN to trunking mode.

3. Press MODE and selects Mo or ED.

4. Press PGM and selects the channel number where to enter with up or down key or numeric key.

5. Enter UHF trunking frequency and press ENTER.

6. Repeats step 4 and 5 to complete enter the trunking frequency group.
In above steps the same receiving mode set at above step 3 is repeated.

7. If necessary press MODE and change the receiving mode.

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STORING TEXT TAGS
You can customize your scanner by storing text tags (up to 12 characters) for easy identification of channel
transmissions, trunk IDs, or banks.

Assigning a Text Tag to a Channel

1. Press MAN, enter the channel number where you want to enter the text, then press MAN again. M and

the channel number appear at the upper left corner of the display (for example: M100).

2. Press PROG. M changes to P.

3. Press TEXT. The cursor appears at the 3rd line.

4. Enter the text using the numeral keys (see “Text Input Chart” on Page XX).

Note: If you make a mistake, press /¥ or ¥/ to move to the character you want to change.

For example input “HAM 6m” as follows:

• “H” is the second letter associated with 4 on the keypad. Press 4 then 2.

• “A” is the first letter associated with 2 on the keypad. Press 2 then 1.

• “M” is the first letter associated with 6 on the keypad. Press 6 then 1.

• “Space.” Press • .

• “6” is the sixth number associated with 1 on the keypad. Press 1 then 6.

• “m” is the first letter associated with 6 on the keypad. Press 6 and FUNC (for the lower case set), then

press 1.

5. Press ENTER to input the text.

Assigning a Text Tag to a Bank

1. Select a channel within the desired bank by pressing MAN and entering the bank number (000 for bank

0 or 200 for bank 2, for example). Press MAN again.

2. Press PROG.

3. Press FUNC then 7. The cursor appears at the 3rd line of the display. Enter the text using the keypad

and press ENTER.

Text Input Chart

Notes:

• To access the numbers, after you press TEXT or you press FUNC and 6, press 1, then press the desired

number you want to enter.

• To enter a lowercase character or a character from the second set for key 0, press FUNC after pressing

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the first numeral key.

Press To Enter Character from this Group
1 1 2 3 4 5 6 7 8 9 0
2 A B C
FUNC after press 2 a b c
3 D E F
FUNC after press 3 d e f
4 G H I
FUNC after press 4 g h i
5 J K L
FUNC after press 5 j k l
6 M N O
FUNC after press 6 m n o
7 P Q R S
FUNC after press 7 p q r s
8 T U V
FUNC after press 8 t u v
9 W X Y Z
FUNC after press 9 w x y z
0 . - # _ @ + * & / ‘
FUNC after press 0 $ % ! ^ ( ) ? -> ` <-

• Space

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FINDING AND STORING ACTIVE FREQUENCIES

You can search for transmissions in preprogrammed search banks. The search bank is divided into 6
search bands. SR5 bank is able to change the search range manually. You can set the search lower end
frequency and also higher end frequency manually.

Notes:

• You can use the scanner’s delay feature while searching the search bank. See “Using the Delay

Function” on Page XX.

• The scanner does not search locked-out frequencies while searching ranges.

Searching a Preprogrammed Frequency Range

The scanner contains those programmed search ranges, stored in search bank (0 – 5).

Bank Band

SR0 Marine
SR1 CB
SR2 Police/Fire
SR3 Aircraft
SR4 Ham
SR5 Limit search (User changeable)

Page 15

Search bank : SR0 Marine band
Receive mode : FM

CHANNEL FREQUENCY (MHz)

01 156.050
05 156.250
06 156.3000
07 156.3500
08 156.4000
09 156.4500
10 156.5000
11 156.5500
12 156.6000
13 156.6500
14 156.7000
15 156.7500
16 156.8000
17 156.8500
18 156.9000
19 156.9500
20 157.0000/161.6000
21 157.0500
22 157.1000
23 157.1500
24 157.2000/161.8000
25 157.2500/161.8500
26 157.3000/161.9000
27 157.3500/161.9500
28 157.4000/162.0000
63 156.1750
64 156.2250/160.825
65 156.2750
66 156.3250
67 156.3750
68 156.4250
69 156.4750
70 156.5250
71 156.5750
72 156.6250
73 156.6750
74 156.7250
77 156.8750
78 156.9250
79 156.9750
80 157.0250
81 157.0750
82 157.1250
83 157.1750
84 157.2250/161.8250
85 157.2750/161.8750
86 157.3250/161.9250
87 157.3750/161.9750
88 157.4250

20-466 Owner’s Manual

NOTE: Two frequencies are assigned in one channel in some Marine frequencies. Example: 20CH 157.000, 20CH

161.600

Search bank : SR1 CB band
Receive mode : AM

CHANNEL FREQUENCY (MHz)

01 26.9650
02 26.9750
03 26.9850
04 27.0050
05 27.0150
06 27.0250
07 27.0350
08 27.0550
09 27.0650

Page 16

10 27.0750
11 27.0850
12 27.1050
13 27.1150
14 27.1250
15 27.1350
16 27.1550
17 27.1650
18 27.1750
19 27.1850
20 27.2050
21 27.2150
22 27.2250
23 27.2550
24 27.2350
25 27.2450
26 27.2650
27 27.2750
28 27.2850
29 27.2950
30 27.3050
31 27.3150
32 27.3250
33 27.3350
34 27.3450
35 27.3550
36 27.3650
37 27.3750
38 27.3850
39 27.3950
40 27.4050

20-466 Owner’s Manual

Search bank : SR2 Police/Fire bank
Receive mode : FM

GROUP FREQUENCY (MHz) STEP (kHz)

0 33.420-33.980 20

37.020-37.420 20

39.020-39.980 20

42.020-42.940 20

44.620-45.860 40

45.880 -

45.900 -

45.940-46.060 40

46.080-46.500 20

1 153.770-154.130 60

154.145-154.445 15

154.650-154.950 15

155.010-155.370 60

155.415-155.700 15

155.730-156.210 60

158.730-159.210 60

166.250 -

170.150 -

2 453.0375-453.9625 12.5

458.0375-458.9625 12.5

460.0125-460.6375 12.5

465.0125-465.6375 12.5

3 856.2125-860.9875 25

866.0125-868.9875 12.5

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20-466 Owner’s Manual

Search bank : SR3 Aircraft
Receive mode : AM

GROUP FREQUENCY (MHz) STEP (kHz)

108.000-136.9875 12.5

Search bank : SR4 Ham band
Receive mode : FM

GROUP FREQUENCY (MHz) STEP (kHz)

0 28.0000 – 29.7000 5
1 50.0000 - 54.0000 5
2 144.0000 - 148.0000 5
3 222.0000 - 225.00000 5
4 420.0000 - 450.0000 12.5
5 1240.0000 - 1300.0000 6.25

Search bank : SR5 Programmable limit search
Receive mode : FM (Default setting)

Follow these steps to select preprogrammed search banks and searches them for active frequencies.

1. Press SEARCH to select your desired search bank.

Add illust

2. In the marine and CB band you can select the channel by Manually or search. M marking at the top of
the second line shows manual mode. S shows search. Press desired channel number while M
indication with two digits to shift the channel. You can also change the channel by /¥ or ¥/ keys with
search direction.

3. Press FUNC then SEARCH while M indication then M changes to S and set search mode. Press
FUNC then SEARCH again to backward.

4. Rotates squelch control clockwise and leave it set to a point just after hissing sound stops. After the 2
seconds if Delay is turn on and LCD indicates Searching . . . to start search.

5. When the scanner finds an active frequency, it stops searching.

Search active frequency in your desired frequency range
You can program your desired frequencies range to search.

1. Press SEARCH and select SR5.

2. PGM then SEARCH. LCD indicates PSR for Program Search at the top line and blinks L at the second
line for lower-end limit frequency.

3. Press your desired lower-end limit frequency with number and decimal point key.

4. Press ENTER to set the frequency. If the entry frequency is incorrect it does not accept it, sounds

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20-466 Owner’s Manual

invalid and back to before press the number.

5. If you want to change the high-end limit frequency then press /¥ or ¥/ key to select higher-end limit
frequency entry.

6. Press your desired higher-end frequency and press ENTER.

7. Rotates squelch control clockwise and leave it set to a point just after hissing sound stops.

8. Press SEARCH and starts search. When the scanner finds an active frequency, it stops searching.

Special notes:

1. You can copy and save the frequency into a specified bank, channel, or priority channel when the
scanner finds an active frequency. See page XX “Frequency Copy function” to save the frequency.
Frequency copy functions only search bank 2, 3, 4 and 5.

2. You can set seek search by press FUNC then 7. LCD indicates Seek ON at the bottom line. While seek
search it stops at the active frequency for five second and restart search automatically and repeats.

3. You can set Zeromatic on or off by press FUNC then 0. Press them again to reverse Zeromatic setting.
While Zeromatic is turned on Z is indicated at the first digit of the second line and it stops at correct
frequency. If it is set off (no indication) then it stops when detect active signal even it is slightly off.

Zeromatic functions only search bank 2, 3, 4 and 5.

4. There are grouped bank in SR2 Police/Fire and SR4 Ham Band. You can turn off or on the group if
press group number while in SR2 and SR4 search band.

5. Press FUNC then /¥ to start up search from the lowest frequency and press FUNC ¥/ to start down
search from upper frequency in Air and Limit search band.

USING FREQUENCY COPY FUNCTION
You can copy the indicated receiving frequency into specified channel, vacant channel in the specified
bank or priority channel.
Frequency in the Marine and CB band is not able to copy.

Copy the frequency in the specified channel
You can copy the indicated receiving frequency into specified channel when stops search or tune mode.

1. Press FUNC then PROG where you want to copy the indicated frequency.

2. Chan Store? appears at LCD bottom line. After about 1 second the frequency indication is changed to

the copy frequency.

3. Press your desired bank and the channel number where you want to store. Then LCD indicates the

bank and channel number. After about 1 second the copy frequency is blinked on the LCD.

4. Press ENTER then all the condition such as receiving mode and delay condition are copied on the

channel. After indicates Chan Store! for about 2 seconds it automatically backed to search mode.

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20-466 Owner’s Manual

5. If you want to copy same frequency which already stored then sounds notice tone 3 times after step 1,

LCD indicates the location bank number, channel number, the frequency and Dupl.f Chxxx is appeared
at the LCD bottom line.

6. If you want to copy the duplicate frequency then press ENTER or press CLEAR to cancel.

Copy the frequency into the specified bank at vacant channel
You can copy the indicated receiving frequency into specified bank vacant channel when stops search or

tune mode.

1. Press FUNC then ENTER where you want to copy the indicated frequency.

2. Bank9 store? is appeared on the LCD.

3. If you want to copy it into the bank 9 then press ENTER. If same frequency is not stored then it is stored

in the vacant channel in bank 9.

4. Or press your desired bank number to store. Then Chan Stored! Is indicated for 2 seconds. Then all the

condition such as receiving mode and delay condition are copied on the channel. After about 2 seconds
it automatically back to search mode.

5. If the frequency is already stored then Dupl.f Chxxx is appeared at the LCD bottom line.

6. If you want to copy the duplicate frequency then press ENTER or press CLEAR to cancel.

Copy the frequency into the priority channel
You can copy the indicated receiving frequency into priority channel when stop search, stop scan, manual,

tune or WX mode.

1. Press FUNC then PRI where you want to copy the indicated frequency then the frequency is copied in
priority channel.

2. It blinks Pri channel and it is stored.

SCANNING THE CHANNELS

To begin scanning channels or to start scanning again after monitoring a specific channel, press SCAN.

Note: You must store frequencies into channels before the scanner can scan them. The scanner does not
scan at empty channels.

The scanner scans through all channels (except those you have locked out) in the active banks (see
“Turning Channel-Storage Banks Off and On” and “Locking Out Channels or Frequencies” on Page XX).

Note: To change the scanning direction, press /¥ or ¥/.

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Turning Channel-Storage Banks Off and On

To turn off banks while scanning, press the bank’s number key until the bank’s number disappears. The
scanner does not scan any of the channels within the banks you have turned off.

Notes:

• You cannot turn off all banks. There must be at least one active bank.

• You can manually select any channel in a bank, even if the bank is turned off.

To turn on banks while scanning, press the number key until the bank’s number appears.

MANUALLY TUNING A FREQUENCY

1. Press TUNE. TUNE and current frequency appears.

2. Use the number keys to enter the frequency you want to start to tune.

3. Press ENTER.

4. Press /¥ or ¥/ to move up or down. When the scanner finds an active frequency, it stops tuning.

Note: If you press PAUSE key while tuning, the scanner stops tuning and **PAUSED ** appears on the
display. Press PAUSE key again, the scanner continues tuning.

DELETING FREQUENCIES FROM CHANNELS

1. Press MAN.

2. Use the number keys to enter the channel with the frequency you want to delete.

3. Press MAN again.

4. Press PROG to enter the program mode. M changes to P.

5. Press FUNC.

6. Press CLEAR. The frequency number changes and 0.0000 MHz appears.

LISTENING TO THE WEATHER BAND

The FCC (Federal Communications Commission) has allocated channels for use by the National Oceanic
and Atmospheric Administration (NOAA). Regulatory agencies in other countries have also allocated
channels for use by their weather reporting authorities.

NOAA and your local weather reporting authority broadcast your local forecast and regional weather
information on one or more of these channels.

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20-466 Owner’s Manual

Listening to a Weather Channel

To hear your local forecast and regional weather information, press WX. Your scanner scans through the
weather band then stops within a few seconds on the strong weather broadcast.

Displaying Weather Messages

The weather service precedes each weather alert with a digitally-encoded SAME signal, then a 1050 Hz
tone. You can set the scanner so, if you are monitoring a weather channel with a digitally-encoded SAME
signal when an alert is broadcast, the scanner will decode and display the SAME message, showing the
type of alert being broadcast such as Waning, Watch, Statement, or Test message.

To set the scanner to decode and display SAME messages, press FUNC then WX while you listen to the
weather channel. DIG WX STBY and Cancel : F+WX appear.

To set the scanner out of the SAME standby mode, press FUNC then WX again. DIG WX STBY
disappears.

Notes:

• The scanner does not display the actual location referenced by SAME messages. It uses only the part of

message portion of the SAME signal.

• Your scanner can also receive weather alert tones (see “Priority” on Page XX).

WX alert and beep tone confirmation

1. Press WX for more than 2 seconds while LCD indicates DIG WX STBY.

2. LCD indicates the type of message and sounds alert or beep and it automatically change every 3
seconds.

3. Press any key to stop test sound mode.

Special Features

USING THE DELAY FUNCTION

Note: Delay is automatically set as the default for each channel when you turn on the scanner.

Many conversations might have a pause of several seconds between a query and a reply. To avoid
missing a reply, you can program a 2-second delay into any of your scanner’s channels. Then, when the
scanner stops on the channel, D appears and the scanner continues to monitor the channel for 2 seconds
after the transmission stops before it resumes scanning or searching.

To turn delay on or off, press • /DELAY.

LOCKING OUT CHANNELS OR FREQUENCIES

You can scan existing channels or search frequencies faster by locking out channels or frequencies that

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20-466 Owner’s Manual

have a continuous transmission, such as a weather channel.

Locking Out Channels

To lock out a channel while scanning, press L/OUT when the scanner stops on the channel. To lock out a
channel manually, select the channel then press L/OUT until L appears.

Notes:

• You can still manually select locked-out channels.

To remove the lockout from a channel, manually select the channel and press L/OUT until L disappears.

Reviewing the Lock-Out Channels

To review all channels that are locked out, press MANUAL, then repeatedly press FUNC then L/OUT to
view each locked-out channel. When you finish reviewing locked-out channels, press MAN.

Locking Out Frequencies

To lock out a frequency during a search, press L/OUT when the scanner stops on the frequency. The
scanner locks out the frequency, then continues searching.

Notes:

• The scanner does not store locked out frequencies during a search.

• You can lock out as many as 50 frequencies in each bank. If you try to lock out more, Memory full!

appears.

• If you lock out all frequencies in one search bank and only this search bank is activated, All ranges

Locked out! appears and the scanner does not search.

Reviewing Locked-Out Frequencies

Follow these steps to review the frequencies within a search bank that you locked out.

1. Press SEARCH to set search mode.

2. Press FUNC then L/OUT in search. The locked-out frequency and Lockout list appear. The locked-out
number and the total locked-out number also appear as L/O XX of YY. If the search bank has no
locked-out frequencies, Empty. Lockout list appears. Press FUNC then L/OUT again to cancel
reviewing locked-out frequencies.

Add illust

Clearing a Locked-Out Frequency

To clear a locked-out frequency, select that frequency in order to use the locked-out frequencies review
function, then press CLEAR.

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20-466 Owner’s Manual

If all locked out frequencies are cleared within a bank, L/O list is empty. appears.

Clearing All Lock Out Frequencies in a Search Bank

1. Press SEARCH.

2. Turn on only one search bank, the one in which you want to clear all locked-out frequencies.

3. Press FUNC then press L/OUT. Lockout list appears on the displays 4th line.

4. Press FUNC then 6. Confirm list clear? 1=YES Press other key for NO. appears. Press 1 to clear all
lock-out frequencies and List cleared appears for about 2 seconds. Press any key other than 1, to
cancel clear.

Note: You cannot clear all lock-out frequencies if all frequencies in the selected bank are locked out.

PRIORITY

With the priority feature, you can scan through programmed channels and still not miss an important or
interesting call on a specific channel. When priority is turned on, the scanner checks that channel every 2
seconds, and stays on the channel if there is activity until the activity stops.

There is one priority channel separated to 300 channels memory frequency.

Notes:

• The priority feature does not operate while the scanner receives trunking frequencies.

• If you program a weather channel as the priority channel, the scanner stays in the priority channel only

when the scanner detects the weather alert tone.

Follow these steps to program a channel as the priority channel.

1. Press MAN.

2. Use the number keys to enter the channel number you want to program as the priority channel. Then

press MAN again.

3. Press FUNC then PRI. PRI Channel blinks at the bottom line.

4. Press ENTER.

If you program priority channel directly, you use following procedure.

1. Press PROG.

2. Press PRI.

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3. Enter the frequency you want to enter into the priority channel, then press ENTER.

Note: This scanner cannot set a channel as the priority channel if the channel’s receive mode is MO or ED.

Follow those steps to program a weather channel as the priority channel.

1. Press WX.

2. Select the weather channel you want to program as the priority channel.

3. Press FUNC then PRI. Pri Channel flushes at the bottom line two times.

To turn the priority function, press PRI to show P at the top line and PRIon appears at the bottom line while
scanning. When stops scan at the priority channel it shows Pri Channel for 3 seconds and it is changed to
Weather Alert and sounds alert.

Notes:

• Priority WX is only for receiving a weather alert.

• When the scanner detects a 1050 Hz alert tone, priority WX activates and you receive a weather alert.

• If you program a weather frequency into the priority channel and the scanner detects a weather alert tone

on that frequency, the scanner sounds the alert tone.

CHANGING THE RECEIVE MODE
The scanner is preset to the most common AM or FM receive mode for each frequency range. The preset
mode is corrected in most cases. However, some amateur radio transmissions and trunked systems do
not operate in the preset mode. If you try to listen to a transmission when the scanner is not set to the
correct receive mode, the transmission might sound weak or distorted.

If you want to listen to trunking transmissions in closed mode, you might have to change the receive mode.

To change the receive mode, repeatedly press MODE. The receive mode changes as follows:

Display Description

-----------------------------------------------------------------------------------------

AM AM Mode
FM FM Mode
MO FM Mode, Motorola Trunking System (with a 4- or 5-digit ID code)
ED FM Mode, EDACS Trunking System (with 4-digit decimal ID code or 5-digit AFS code)

Note: The scanner does not change MO and ED mode when the scanner tunes frequency ranges that the
trunking operation does not use.

USING THE ATTENUATOR

To reduce interference or noise caused by strong signals, you can reduce the scanner’s sensitivity to these
signals.

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There are two function of attenuator in your PRO-93.
One is normal attenuator set to each the channel and each band in the Search and Tune mode. The other
is set attenuator global unit.

Press ATT to turn on or off the channel attenuator while channel number is indicated.
Turn on the channel attenuator then “A” is indicated at the 7th digit in the top line.
When turn it off the indication is changed to “.”.
Attenuator is not able to set while Scanning.

Press FUNC then ATT to set the attenuator to the global unit. When set global attenuator “Global ATT.” is
indicated for 2 seconds at the bottom line and “a” or “-“ is indicated instead of “A” channel attenuator
indication. To press ATT key to turn on or off the global attenuator.
“”ATTon” or “ATT-“ is indicated at the bottom line while scan.

Press FUNC then ATT while global attenuator to change it to normal and “Normal ATT.” is indicated at the
bottom line for 2 seconds.

Note: If you turn on this feature, the scanner might not receive weak signals.

TURNING THE KEY TONE ON AND OFF

Each time you press any of the scanner’s keys, the scanner sounds a tone. Follow these steps to turn the
scanner’s key tone off or on.

1. If the scanner is on, turn VOLUME OFF/MAX counterclockwise until it clicks to turn the scanner off.

2. Turn VOLUME OFF/MAX clockwise to turn the scanner on. Welcome To Dual Trunking appears.

3. While Welcome To Dual Trunking appears, press 1 to turn on the key tone or 2 to turn it off.

CHANGING THE DISPLAY CONTRAST

1. Press MANUAL.

2. Press FUNC then 9. Use Up/Down keys to set contrast. appears.

3. Press /¥ or ¥/ to select the contrast.

4. Press ENTER to set the display contrast.

CLONING THE PROGRAMMED DATA FROM SCANNER TO SCANNER

You can transfer the programmed data to and from another RadioShack Cat. No. 20-523 or 20-466
scanner using the clone cable. We recommend RadioShack Cat. No. 42-2487 for the cable. To clone the
data, follow these steps.

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1. Turn on both scanners.

2. Connect the supplied clone cable to each scanner’s PC/IF jack. *CLONE MODE* UP to send, remove

cable to exit appears.

3. Press /¥. Confirm send data? 1=Yes Press other key for No. appears.

4. Press 1 to send the data to the other unit or press any other key to cancel the operation.

The scanner sends the data. To exit the clone mode, remove the cable.

Trunking Operation

The scanner tracks transmissions that use the Motorola® Type I and Type II (such as Smartnet and
Privacy Plus) and hybrid analog trunking systems, plus GE/Ericsson (EDACS) type systems, which are
extensively used in many communication systems.

Trunking systems allocate a few frequencies to many different users. When the mobile unit transmits a
signal, one frequency is chosen from among the allocated frequencies in that trunking system. The user’s
ID talk group is sent with the signal.

To receive trunking signals, you must store all the trunking group frequencies in one bank (see “Storing
Known Frequencies into Channels” on Page XX) and input ID codes in the ID memory (see “Storing Talk
Group IDs” on Page XX).
Important : To listen to the transmission, the mode of the programmed channel must be the same as that of
the trunking channel (MO, or ED).

When an ID code is received, the ID list for the bank is searched, and if found, the text name stored for the
ID appears. If not found, scanning resumes immediately unless the bank is in open trunking mode.

Note: There might be more than one talk group transmitting at a time in some Motorola trunking systems. If
you set the scanner to manually tune in Motorola trunking mode, you will hear the talk group on that
channel, but the display will alternate between all active IDs.

Trunking group frequencies are included in the supplied Police Call Trunking Guide. Frequency fleet map
and talk group information is also widely available on the Internet, at www.trunkscanner.com for example.

UNDERSTANDING TRUNKING

In the past, groups that transmit frequently, such as police departments, could transmit on only a few
frequencies. This resulted in heavy traffic and often required 2-way radio users to wait for a specific
frequency to clear before transmitting. Trunked systems allow more groups of 2-way radio users to use
fewer frequencies. Instead of selecting a specific frequency to transmit on, a trunked system chooses one
of several frequencies when the 2-way radio user transmits. The system automatically transmits the call on
that frequency, and also sends a code that identifies that 2-way radio user’s transmission on a control

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20-466 Owner’s Manual

channel.

This scanner lets you easily hear both the call and response transmissions for that 2-way radio user and
therefore follow the conversation. For EDACS and Motorola (above 406 MHz range), the scanner monitors
the control channel between each transmission to identify talk groups.

SETTING SQUELCH FOR THE TRUNKING MODE

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.

PROGRAMMING TRUNKING FREQUENCIES

You program trunking frequencies just like non-trunked frequencies, except that you must store the
appropriate mode (MO or ED) with each frequency.

Notes:

• You can store only one trunked EDACS and Motorola channel in a bank. You can, however, mix

conventional channels in a bank.

• If you are programming trunked frequencies for Motorola Type I and hybrid systems, you must first

program the fleet map (see “Programming Fleet Maps” on Page XX).

Follow these steps to program trunked frequencies.

1. Press PROG and select the bank, then press TRUNK to enter the ID program mode.

2. Repeatedly press MODE to select MO for Motorola, or ED for the EDACS (GE/Ericsson) system to scan.

This sets the talk group ID decoding method to be used for the bank.

Notes:

• If you select Non instead of MO, or ED, the scanner does not scan trunked frequencies.

Instead, you see:

Add illust

• If you programmed a Motorola Type I or Hybrid system, see “Programming Fleet Maps” on Page XX.

3. Press PROG to enter the program mode.

4. Store the trunking frequencies into subsequent channels in the same bank (see “Storing Known

Frequencies into Channels” on Page XX).

5. Repeatedly press MODE to select the trunking mode — MO for Motorola, or ED for the EDACS

(GE/Ericsson) system.

6. Press SCAN to start scanning.

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Programming Motorola Trunking Systems (UHF-Lo)

You can program the scanner to receive transmissions in the UHF-Lo band (406–512 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.

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 guidebooks.

• If you try to enter an offset frequency in the VHF and UHF-Hi bands (under 174 and 806–960 MHz), the

scanner will ignore the entry.

Follow these steps to program Motorola trunking frequencies in the UHF-Lo band.

1. Press PROG then TRUNK to ID program mode.

2. Press MODE and select MO.

3. Press FUNC then 2.
LCD indicates Base freq.: at the 1st line, 413.0000 at the 2nd line, Offset : 380 at 3rd line and Step :

25.0kHz at bottom line.

4. While blinks B in Base, if necessary press your desired Base frequency with number key and press
ENTER. Make sure the entry and if it is incorrect then press number key again to set the base
frequency. After you make sure the input then press ENTER again.

5. While blinks O in the Offset, if necessary press offset number and press ENTER. Make sure the entry
and if it is incorrect then press number key again to set the base frequency. After you make sure the
input then press ENTER again.

6. While blink S in the Step press /¥ and ¥/ to repeat step number indication from 25.0, 50.0 and 12.5 kHz.
Press ENTER.

7. Press PROG to enter the program mode.

Store the trunking IDs into the sub-bank in the same bank.

PROGRAMMING FLEET MAPS

You must set the fleet map if you want to receive a Motorola Type I system. Fleet maps are included along
with other information about Motorola Type I systems at www.trunkscanner.com.

Follow these steps to program a fleet map.

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20-466 Owner’s Manual

1. Press PROG then TRUNK.

2. For each bank you want to program, repeatedly press FUNC, /¥, or ¥/ to select the bank.

3. Press FUNC.

4. Press 8. The following display appears:

Add illust

5. Enter the size code supplied with the Type I system information, referring to the instruction that appears

on the display. If the information was not supplied, try the following common fleet maps.

Block Size Code

1 2 3 4 5 6 7 8

-----------------------------------------------------------------------------------------------------------

0 S11 S4 S4 S12 S4 S3 S10 S1
1 S11 S4 S4 - S4 S10 S10 S1
2 S11 S4 S4 S4 S12 S4 S11 S2
3 S11 S4 S4 S4 - S4 S4 S2
4 S11 S4 S4 S4 S4 S12 S4 S3
5 S11 S4 S4 S4 S4 - S4 S3
6 S11 S4 S12 S4 S4 S12 S4 S4
7 S11 S4 - S4 S4 - S4 S4

Block Size Code

9 10 11 12 13 14 15 16
0 S4 S0 S4 S0 S3 S4 S4 S3
1 S4 S0 S0 S0 S3 S3 S4 S10
2 S0 S0 S0 S0 S11 S10 S4 S10
3 S0 S0 S0 S0 S4 S4 S11 S11
4 S0 S0 S0 S0 S4 S4 S11 S0
5 S0 S0 S0 S0 S0 S4 S0 S0
6 S0 S4 S0 S0 S0 S12 S12 S12
7 S0 S4 S0 S4 S0 - - -

6. Press ENTER for each entry. If you make a mistake, press CLEAR and enter the correct size code.

Note: The default setting of the bank is for Motorola Type II. However, if you set Type I and you want to
return to Type II, enter 15 at Step 5.

7. To confirm the input, repeat Steps 1–5 and press ENTER. Each time you press ENTER, you confirm the
size code. If you find an error, press CL and begin again at Step 1.

8. Press SCAN to start scanning.

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TALK GROUP IDS

There are 10 talk group ID banks and each ID bank has 5 sub-banks and each sub-bank has 20 ID
locations. You can program up to 100 talk group IDs in each bank, so you can program up to 1,000 talk
group IDs in 10 banks. When the scanner stops on a transmission in the Motorola, or EDACS mode, it
checks to see if the ID has been stored. In the closed mode, the scanner only stops on the transmission
and displays its text tag if you have stored and not locked out the ID. In the open mode, the scanner
always stops on a transmission, but it displays the ID’s text tag if you have stored the ID.

Storing Talk Group IDs

To store a talk group ID when scanning, press TRUNK when the scanner stops on a transmission. The
bottom line changes to ID#XXXX, indicating that the ID is stored.

Note: When you try to store more than 100 talk group IDs in a bank, Memory full! appears. Clear some talk
group IDs in order to store new ones (see “Clearing Talk Group IDs” on Page XX).

Follow these steps to manually store talk group IDs or to edit a stored ID.

1. Press PROG.

2. Press TRUNK.

3. To select the bank where you want to store the ID, press FUNC then /¥ or ¥/.

4. Press MODE to select MO or ED.

5. Enter the talk group ID and press ENTER. If necessary, use the decimal point for a hyphen.

Notes:

• If you made a mistake in Step 4, Invalid ID. appears and the scanner beeps when you press ENTER.
Start again at Step 3.

• You can enter either decimal or AFS code for ED ID. The default setting is decimal ID entry. When you
press FUNC then 2, AFS format appears for about 2 seconds. Now you can enter the ID code with AFS
format.

6. Press TEXT and enter the text tag for the ID, then press ENTER.

Invalid appears when you enter the incorrect ID code.

7. To store the next ID memory in sequence, press /¥ and repeat Steps 4 and 5 to enter more IDs.

8. Press SCAN to start scanning.

Talk Group ID Hold

You can set your scanner to follow a trunking signal that you want to track during scanning. Hold down
TRUNK for more than 2 seconds. ID hold ON. appears.

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20-466 Owner’s Manual

Add illust

To release ID hold, press SCAN or TRUNK.

Locking Out Talk Group IDs

Note: You can only lock out talk group IDs when the scanner is in the closed mode (see “Open and Closed
Modes” on Page XX).

1. Press PROG.

2. Press TRUNK.

3. Press FUNC, /¥ or ¥/ to move the desired bank.

4. Press /¥ or ¥/ to select the ID memory.

5. Press L/OUT to lock out the ID. L appears.

6. To remove the lockout from a trunking ID, manually select the ID memory, and press L/OUT until L
disappears.

Delay function in ID indication mode.
Press FUNC then ./Delay key.
LCD indicates Use up/Down at the 1st line,
Keys to set at the 2nd line
ID delay. At 3rd line and

2.0 seconds at bottom line.

Press up or down to select None, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5 or 4.0 seconds.
Press ENTER.

Reviewing Locked-Out Talk Group IDs

Note: You cannot clear all lockouts from a talk group at the same time.

1. Press PROG then TRUNK.

2. Press FUNC then L/OUT. The locked out ID appears. If the ID memory bank has no locked out ID, you
hear the low beep tone.

3. Press FUNC then /¥ or ¥/ to select a search bank. Or, just press /¥ or ¥/ to search for any locked out IDs
in a bank.

Clearing Talk Group Ids

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20-466 Owner’s Manual

1. Press PROG then TRUNK.

2. Press FUNC, /¥ or ¥/ to select ID memory.

3. Press FUNC then CLEAR.

Clearing All Talk Group IDs in One Bank

You can clear all talk group IDs within a bank. This lets you quickly delete all talk group IDs from a bank
(for example, if you want to use the bank to store a different set of talk group IDs).

1. Press PROG.

2. Press TRUNK to enter a talk group ID memory mode.

3. Select a talk group ID bank using FUNC, /¥ or ¥/.

4. Press FUNC then 6. Confirm list clear ? 1=YES Press other key for NO. appears.

5. Press 1 to clear the all talk group IDs within a bank. Please Wait then List Cleared appears.

Note: To cancel the deletion, press any key except 1. The scanner returns to the talk group ID memory
mode.

OPEN AND CLOSED MODES

When set to the open mode, the scanner only uses the ID list to look up ID text tags and stops on any ID
code.

When set to the closed mode, the scanner stops only on signals that have an ID code which is found in the
ID list for the bank.

Note: When you select a channel manually, any transmission opens squelch, regardless of the current
mode.

Add illust

The open or closed mode is set in each channel storage bank. + or – appears under the channel storage
bank’s number while scanning. Or, the status display shows the OPEN/CLOSED mode at the top line
while the scanner is in manual mode or receiving a signal during scanning.

When no ID code is programmed into the scanner, it receives the signal in MOT or ED mode.

Mode Open Closed

------------------------------------------------------------------------------------------------------------------------------­MOT/ED Stops on any transmission. If the Only stops on a transmission if the ID is

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20-466 Owner’s Manual

ID is stored, displays the text tag. stored. Displays the text tag.
Otherwise, displays the talk group
ID.

Changing the Open/Closed Mode

1. Press MAN.

2. Press FUNC then /¥ or ¥/ to select the channel storage bank.

3. Press FUNC then 5. Bank OPEN or Bank CLOSED appears. After that message disappears, the 10th
digit on the top line of the display changes from + to – or vice versa.

4. Repeat Steps 2–3 for each bank.

A General Guide to Scanning

Reception of the frequencies covered by your scanner is mainly “line-of-sight.” That means you usually
cannot hear stations that are beyond the horizon.

GUIDE TO FREQUENCIES

US Weather Frequencies in MHz

162.400 162.425 162.450 162.475

162.500 162.525 162.550

Ham Radio Frequencies

Ham radio operators often transmit emergency information when other means of communication break
down. The chart below shows the frequencies the scanner receives that ham radio operators normally
use:

Wavelength Frequencies (MHz)
10-Meter 28.000-29.700
6-Meter 50.000-54.000
2-Meter 144.000-148.000
70-cm 420.000-450.000
33-cm 902.000-928.000
25-cm 1240.000-1300.000

Birdie Frequencies

Every scanner has birdie frequencies. Birdies are signals created inside the scanner’s receiver. These
operating frequencies might interfere with transmissions on the same frequencies. If you program one of
these frequencies, you hear only noise on that frequency. If the interference is not severe, you might be

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20-466 Owner’s Manual

able to turn SQUELCH clockwise to cut out the birdie.

This scanner’s birdie frequencies (in MHz) are:

Will add

To find the birdies in your scanner, begin by disconnecting the antenna and moving it away from the
scanner. Make sure that no other nearby radio or TV sets are turned on near the scanner. Use the search
function and scan every frequency range from its lowest frequency to the highest. Occasionally, the
searching will stop as if it had found a signal, often without any sound. This is a birdie. Make a list of all the
birdies in your scanner for future reference.

GUIDE TO THE ACTION BANDS

Typical Band Usage

HF Band

HF Range 25.000-26.960 MHz
Citizen’s Band 26.965-27.405 MHz
10-Meter Amateur 28.000-29.700 MHz

VHF Band

Low Range 29.700-50.000 MHz
6-Meter Amateur 50.000-54.000 MHz
U.S. Government 137.000-144.000 MHz
2-Meter Amateur 144.000-148.000 MHz
High Range 148.000-174.000 MHz
New Mobile Narrow Band 220.000-222.000 MHz
1 1/4-Meter Amateur 222.000-225.000 MHz

UHF Band

U.S. Government 406.000-420.000 MHz
70-cm Amateur 420.000-450.000 MHz
Low Range 450.000-470.000 MHz
FM-TV Audio Broadcast, Wide Band 470.000-512.000 MHz
800 band Law Enforcement 806.000-824.000 MHz
Conventional Systems 851.000-856.000 MHz
Conventional/Trunked Systems 856.000-861.000 MHz
Public Safety 866.000-869.000 MHz
Trunked Private/General 894.000-960.000 MHz
25-cm Amateur 1240.000-1300.000 MHz

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20-466 Owner’s Manual

Primary Usage

As a general rule, most of the radio activity is concentrated on the following frequencies:

VHF Band

Activities Frequencies
Government, Police, and Fire 153.785-155.980 MHz
Emergency Services 158.730-159.460 MHz
Railroad 160.000-161.900 MHz
Land-Mobile “Paired” Frequencies 220.000-222.000 MHz

UHF Band

Activities Frequencies
Land-Mobile “Paired” Frequencies 450.000-470.000 MHz
Base Stations 451.025-454.950 MHz
Mobile Units 456.025-459.950 MHz
Repeater Units 460.025-464.975 MHz
Control Stations 465.025-469.975 MHz

Note: Remote control stations and mobile units operate at 5 MHz higher than their associated base
stations and relay repeater units.

BAND ALLOCATION

To help decide which frequency ranges to scan, use the following listing of the typical services that use the
frequencies your scanner receives. These frequencies are subject to change, and might vary from area to
area. For a more complete listing, refer to Police Call Radio Guide including Fire and Emergency Services,
available at your local RadioShack store.

Abbreviations Services

AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aircraft

BIFC . . . . . . . . . . . . . . . . . . Boise (ID) Interagency Fire Cache

BUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Business

CAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Civil Air Patrol

CCA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common Carrier

CB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Citizens Band

CSB. . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional Systems

CTSB. . . . . . . . . . . . . . . . . . . . Conventional/Trunked Systems

FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire Department

HAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio

GOVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government

GMR . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio

GTR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked

IND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Industrial Services

Page 36

(Manufacturing, Construction, Farming and Forest Products)

MAR . . . . . . . . . . . . . . . . . . . . . . . . . . . Military Amateur Radio

MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast

(Coast Guard, Marine Telephone,)

Shipboard Radio and Private Stations)

MARS . . . . . . . . . . . . . . . . . . . . . Military Affiliate Radio System

MED . . . . . . . . . . . . . . . . . . . . . . Emergency/Medical Services

MIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Military

MOV . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video Industry

NEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New Mobile Narrow

NEWS . . . . . . . . . . . . . . . Relay Press (Newspaper Reporters)

OIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil/Petroleum Industry

POL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police Department

PUB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services

(Public Safety, Local Government and Forestry Conservation)

PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety

PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked

ROAD . . . . . . . . . . . . . . . . . . . . Road & Highway Maintenance

RTV . . . . . . . . . . . . . . . . . Radio/TV Remote Broadcast Pickup

TAXI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxi Services

TELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mobile Telephone

TELM. . . . . . . . . . . . . . . . . . . . . . . . . . Telephone Maintenance

TOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tow Trucks

TRAN. . . . . . . . . . . . . . . . . . . . . . . . . . Transportation Services

(Trucks, Tow Trucks, Buses, Railroad, Other)

TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trunked Systems

TVn . . . . . . . . . . . . . . . . . . . . . . . . . . . FM-TV Audio Broadcast

USXX. . . . . . . . . . . . . . . . . . . . . . . . . . . Government Classified

UTIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water Utilities

WTHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weather

20-466 Owner’s Manual

HIGH FREQUENCY (HF)
High Band—(25.00-27.63 MHz—in 5 or 10 kHz steps)

25.020-25.320. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND

25.870-26.470. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RTV

26.62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CAP

26.965-27.405. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . CB

27.430-27.630. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS

10-Meter Amateur Band

28.000–29.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

VERY HIGH FREQUENCY (VHF)
VHF Low Band—(29–50 MHz—in 5 kHz steps)

29.900–30.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

30.580–31.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, PUB

32.000–32.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

Page 37

33.020–33.980 . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB

34.010–34.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

35.020–35.980 . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM

36.000–36.230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

36.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup

36.270–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

37.020–37.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, IND

38.000–39.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

39.020–39.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB

40.000–42.000 . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI

42.020–42.940 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL

42.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND

43.220–43.680 . . . . . . . . . . . . . . . . . . . . . . . . TELM, IND, PUB

43.700–44.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAN

44.620–46.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB

46.600–46.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT

47.020–47.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB

47.420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Red Cross

47.440–49.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, PUB

49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MIL

20-466 Owner’s Manual

6-Meter Amateur Band—(50–54 MHz)

50.000–54.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

Aircraft Band—(108–137 MHz—in 12.5 kHz steps)

108.00–121.490 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR

121.500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR Emergency

121.510–136.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR

U.S. Government Band (137–144 MHz—in 5 kHz steps)

137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

2-Meter Amateur Band (144–148 MHz—in 5 kHz steps)

144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

VHF High Band (148–174 MHz—in 5, 6.25 or 7.5 kHz steps)

148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL

150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

150.815–150.980 . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup

150.995–151.475 . . . . . . . . . . . . . . . . . . . . . . . . . . ROAD, POL

151.490–151.955 . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS

151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM

152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB

152.270–152.480 . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS

152.510–152.840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB

152.870–153.020 . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV

Page 38

153.035–153.725 . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, UTIL

153.740–154.445 . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, FIRE

154.490–154.570 . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS

154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup

154.600–154.625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

154.655–156.240 . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB

156.255–157.425 . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI

157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

157.470–157.515 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW

157.530–157.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, TAXI

157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

157.770–158.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB

158.130–158.460 . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL

158.490–158.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB

158.730–159.465 . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD

159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OIL

159.495–161.565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRAN

161.580–162.000 . . . . . . . . . . . . . . . . . . . . . . .OIL, MARI, RTV

162.0125–162.350 . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

162.400–162.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR

162.5625–162.6375 . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

162.6875–163.225 . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

163.275–166.225 . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE

166.275–169.400 . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, BIFC

169.445–169.505 . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT

169.550–169.9875 . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

170.000–170.150 . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE

170.175–170.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT

170.245–170.305 . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes

170.350–170.400 . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL

170.425–170.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC

170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB

170.4875–173.175 . . . . . . . . . . . . GOVT, PUB, Wireless Mikes

173.225–173.5375 . . . . . . . . . . . . . . . MOV, NEWS, UTIL, MIL

173.5625–173.5875 . . . . . . . . . . . . MIL, Medical/Crash Crews

173.600–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT

20-466 Owner’s Manual

New Mobile Narrow Band (220-222 MHz—in 5 kHz steps)

220.222-222.000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .NEW

1 1/4-Meter Amateur band (222.000-225.000 MHz)

222.000-225.000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

ULTRA HIGH FREQUENCY (UHF)

Page 39

U. S. Government Band (406–420 MHz—in 6.25 kHz steps)

406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, USXX

70-cm Amateur Band (420–450 MHz—in 6.25 kHz steps)

420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

Low Band (450–470 MHz—in 6.25 kHz steps)

450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV

451.025–452.025 . . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL

452.0375–453.00 . . . . . . . . . . . IND, TAXI, TRAN TOW, NEWS

453.0125–454.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, OIL

454.025–454.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB

455.050–455.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV

457.525–457.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

458.025–458.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

460.0125–460.6375 . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB

460.650–462.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

462.1875–462.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND

462.4625–462.525 . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL

462.550–462.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . GMR, BUS

462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED

463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

20-466 Owner’s Manual

FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz—in 6.25 kHz steps)
(Channels 14 through 69 in 6 MHz steps)

475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14

481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15

487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16

493.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Channel 17

499.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Channel 18

505.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 19

511.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20

Note: Some cities use the 470–512 MHz band for land/mobile service.

Conventional Systems Band – Locally Assigned (in 6.25 kHz steps)

851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSB

Conventional/Trunked Systems Band – Locally Assigned (in 6.25 kHz steps)

856.0125–860.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CTSB

Trunked Systems Band – Locally Assigned (in 6.25 kHz steps)

861.0125–865.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB

Public Safety Band – Locally Assigned (in 6.25 kHz steps)

866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSB

33-Centimeter Amateur Band (902–928 MHz —in 6.25 kHz steps)

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20-466 Owner’s Manual

902.000–928.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

Private Trunked Band (in 6.25 kHz steps)

935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR

General Trunked Band (in 6.25 kHz steps)

940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GTR

23-Centimeter Amateur Band (in 6.25 kHz steps)

1240.000-1300.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

FREQUENCY CONVERSION

The tuning location of a station can be expressed in frequency (kHz or MHz) or in wavelength (meters).
The following information can help you make the necessary conversions.

1 MHz (million) = 1,000 kHz (thousand)

To convert MHz to kHz, multiply the number of megahertz by 1,000:

30.62 (MHz) x 1000 = 30,620 kHz

To convert from kHz to MHz, divide the number of kilohertz by 1,000:

127.800 (kHz) / 1000 = 127.8 MHz

To convert MHz to meters, divide 300 by the number of megahertz:

300/50 MHz = 6 meters

Troubleshooting

If you have problems with your scanner, here are some suggestions that might help you eliminate the
problem. If they do not, take your scanner to your local RadoShack store for assistance.

Problem Possible Cause Remedy

----------------------------------------------------------------------------------------------------------------­Scanner is on SQUELCH is not adjusted Turn SQUELCH clockwise. See
but will not scan. correctly. “Turning on the Scanner and

Setting Squelch” on Page XX.

-----------------------------------------------------------------------------------------------------------------­Poor or no An antenna is not connected Make sure an antenna is
reception. or connected incorrectly. connected to the scanner.

--------------------------------------------------------------------------------------------

Programmed frequencies are Avoid programming birdie fre-

the same as birdie frequencies. quencies or only select them

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20-466 Owner’s Manual

manually. See “Birdie Fre­quencies” on Page XX.

-----------------------------------------------------------------------------------------------------------------­In the scan Stored frequencies are theAvoid storing birdie frequencies
mode, the same as “birdie” frequencies. or only select them manually. See
scanner locks “Birdie Frequencies” on Page XX.
on frequencies
that have an
unclear transmission.

-----------------------------------------------------------------------------------------------------------------­Scanner is No power. AC adapter or DC adapter is
totally inoper- connected properly.
ative.

--------------------------------------------------------------------------------------------

The AC adapter or DC adapter is Be sure the adapter’s barrel plug

not connected. is fully plugged into the DC 12V

jack.

-----------------------------------------------------------------------------------------------------------------­Keys do not Undetermined error. Turn the scanner off then on again,
work or display or reset the scanner. See
changes. “Resetting/Initializing the Scanner.”

------------------------------------------------------------------------------------------------------------------

RESETTING/INITIALIZING THE SCANNER

If the scanner’s display locks up or does not work properly after you connect a power source, you might
need to reset or initialize it.

Important: If you have problems with the scanner, first try to reset it to retain all memory. If that does not
work, you can initialize the scanner; however, initializing clears all information stored in the scanner’s
memory.

Resetting the Scanner.

1. Turn off the scanner, then turn it on again.

2. Insert a pointed object, such as a straightened paper clip, into the reset opening on the back of the
scanner. Then gently press and release the reset button inside the opening.

Add illust

Note: Pressing RESET does not clear the scanner’s memory.

Initializing the Scanner

Important: This procedure clears all information you stored in the scanner’s memory. Initialize the scanner
only when you are sure the scanner is not working properly.

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20-466 Owner’s Manual

1. Turn off the scanner, then turn it on again. Welcome To Dual Trunking appears.

2. Press 0 then 1 while Welcome To Dual Trunking appears. Initializing Please Wait. appears for about 25
seconds

Note: Do not turn off the scanner until the initialization is complete and Welcome To Dual Trunking appears
again.

Care

To enjoy your RadioShack Base Scanner for a long time:

. Keep the scanner dry. If it gets wet, wipe it dry immediately.
. Use and store the scanner only in normal temperature environments.
. Handle the scanner gently and carefully. Do not drop it.
. Keep the scanner away from dust and dirt.
. Wipe the scanner with a damp cloth occasionally to keep it looking new.

Modifying or tampering with the scanner’s internal components can cause a malfunction and might
invalidate its warranty and void your FCC authorization to operate it. If your scanner is not performing as it
should, take it to your local RadoShack store for assistance.

Specifications

Frequency Coverage:

25-54 MHz (in 5 kHz steps)
108-136.9875 MHz (in 12.5 kHz steps)
137-174 MHz (in 5, 6.25 or 7.5 kHz steps)
406-512 MHz (in 6.25 kHz steps)
806-823.9875 MHz (in 6.25 kHz steps)
849-868.9875 MHz (in 6.25 kHz steps)
894-960 MHz (in 6.25 kHz steps)
1240-1300 MHz (in 6.25 kHz steps)

Memory channel 300
Channel memory Banks 10
Number of channel memory/bank 30
Talk group ID memory 1,000
ID memory Banks 10
Sub-bank 5
Number of ID memory/sub-bank 20
Sensitivity (20 dB S/N):
FM:

25-54 MHz 0.3 uV

Page 43

108-136.9875 MHz 0.3 uV
137-174 MHz 0.5 uV
216-225 MHz 0.5 uV
406-512 MHz 0.5 uV
806-960 MHz 0.7 uV
1240-1300 MHz 2.0 uV

AM:

25-54 MHz 1 uV
108-136.9875 MHz 1 uV
137-174 MHz 1.5 uV
216-225 MHz 1.5 uV
406-512 MHz 2 uV
806-960 MHz 2 uV
1240-1300 MHz 2 uV

Selectivity:

25- 27.995 MHz AM mode

-6 dB +/-5 kHz

-50 dB +/-10 kHz

Other frequency AM and FM mode

-6 dB +/-10 kHz

-50 dB +/-18 kHz
Spurious Rejection (at 154 MHz FM) 40 dB
Scanning Rate Up to 60 Channels per Second
Search Rate Up to 60 Steps per Second
Delay Time 2 seconds
Intermediate Frequencies (IF):

st

1

nd

2

rd

3

257.5 MHz

21.4 MHz

455 kHz
Priority Sampling 2 seconds
Operating Temperature -14 to 140 F

(-10 to 60 C)
IF Rejection

257.5 MHz at 154 MHz 60 dB

21.4 MHz at 154 MHz 100 dB

Squelch Sensitivity:

Threshold (FM and AM) 0.5 uV
Tight (FM) 25 dB

Tight (AM) 20 dB
Antenna Impedance 50 Ohms
Audio Output Power (10% THD) 1.2 W
Built-in Speaker 3 Inches (77 mm)

(8-ohm, Dynamic Type)

Power Requirements: 120V AC, 60 Hz, 8 W

or 9V DC

Dimensions (HWD) 3 1/8 x 8 1/2 x 6 1/2 Inches

(80 x 215 x 165 mm)

20-466 Owner’s Manual

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20-466 Owner’s Manual

Weight (without antenna and AC adapter) 27 Oz.

(750 g)

Specifications are typical: individual units might vary. Specifications are subject to change and
improvement without notice.

Printed in Japan
GE-01D-9995

Page 45