Radio Shack Scanner PRO 2050 User Guide

20-430.fm Page 1 Wednesday, August 4, 1999 1:29 PM

Cat. No. 20-430

Owner’s Manual

PRO-2050

VHF/UHF/Air/800MHz

300-Channel TrunkTracker Home Scanner

Please read before using this equipment.

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Scan Delay — delays scanning for

about 2 seconds before moving to an-

other channel in conventional mode,

so you can hear more replies that are

made on the same channel. In trunk

tracking mode, it delays for about 5

seconds before moving to another ID.

signals, making a scan or search fast-

er.

Manual Access — lets you directly

access any stored channel.

Liquid-Crystal Display — makes it

easy to view and change program-

ming information.

Lock-Out Function — lets you set

your scanner to skip over specified

channels or frequencies when scan-

ning or searching, and skip over IDs

when tracking trunked systems.

Display Backlight — makes the

scanner easy to read in low-light situa-

tions.

Priority Channels — lets you pro-

gram one channel in each bank (10 in

all). As the scanner scans a bank, it

checks the bank’s priority channel ev-

ery 2 seconds so you don't miss trans-

missions on that channel.

Supplied Telescoping Antenna —

provides good reception of strong lo-

cal signals.

External Antenna Terminal — lets

you connect an external antenna with

a BNC connector to the scanner for

improved reception of distant/weaker

signals.

Five Service-Search Banks — lets

you search preset frequencies in sep-

arate public service, police, fire/emer-

gency, aircraft, and weather banks, to

make it easy to locate specific types of

calls.

Memory Backup — keeps the chan-

nel frequencies stored in memory for

an extended time.

HyperSearch and HyperScan

—

Key Confirmation Tones — the

scanner sounds a tone when you per-

form an operation correctly, and an er-

ror tone if you make an error.

let you set the scanner to search at up

to 300 steps per second (in frequency

bands with 5 kHz steps) and scan at

up to 50 channels per second, to help

you quickly find interesting broad-

casts. (The normal search speed is

100 steps per second).

Duplicate Channel Alert — warns

you when the frequency you are stor-

ing already exists in memory.

Data Signal Skip — lets you set the

scanner to skip non-modulated or data

signals during scanning and searches.

This lets the scanner avoid non-voice

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Your PRO-2050 scanner can receive

all of these bands:

FCC NOTICE

Your scanner might cause TV or radio

interference even when it is operating

properly. To determine if your scanner

is causing the interference, turn off

your scanner. If the interference goes

away, your scanner is causing it. Try

to eliminate the interference by:

Frequency

Range

Types of

Transmissions

29–29.7 MHz

10-Meter Amateur

Radio

29.7–50 MHz

50–54 MHz

VHF Lo

6-Meter Ham Band

Aircraft

• Moving your scanner away from

the receiver

108–136.975

MHz

• Connecting your scanner to an

outlet that is on a different electri-

cal circuit from the receiver

137–144 MHz

144–148 MHz

148–174 MHz

406–420 MHz

Military Land Mobile

2-Meter Ham Band

VHF Hi

• Contacting

your

local

Ra-

dioShack store for help

If you cannot eliminate the interfer-

ence, the FCC requires that you stop

using your scanner.

Federal

Government

420–450 MHz

450–470 MHz

470–512 MHz

70-cm Ham Band

UHF Standard Band

UHF “T” Band

This device complies with Part 15 of

the FCC Rules. Operation is subject to

the following two conditions: (1) This

device may not cause harmful interfer-

ence, and (2) this device must accept

any interference received, including

interference that may cause undesired

operation.

806–824 MHz

851–869 MHz

896–956 MHz

Public Service “800”

except

Cellular Band

Note: See “Specifications” on Page 51

for more information about the scan-

ner’s frequency steps.

We recommend you record your scan-

ner’s serial number here. The number

is on the scanner’s back panel.

Serial Number _________________

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SCANNING LEGALLY

Scanning is a fun and interesting hob-

by. You can hear police and fire de-

partments,

ambulance

services,

government agencies, private compa-

nies, 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 in-

tentionally intercept. These include:

• Telephone conversations (cellu-

lar, cordless, or other private

means of telephone signal trans-

mission)

• Pager transmissions

• Scrambled or encrypted transmis-

sions

According to the Federal Electronic

Communications Privacy Act (ECPA),

as amended, you could be fined and

possibly imprisoned for intentionally

intercepting, using, or disclosing the

contents of such a transmission un-

less you have the consent of a party to

the communication (unless such activ-

ity is otherwise illegal). These laws

change from time to time and there

might be state or local laws that also

affect legal scanner usage.

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CONTENTS

Preparation ........................................................................................................... 8

Connecting an Antenna ................................................................................... 8

Connecting the Supplied Antenna ............................................................... 8

Connecting an Outdoor Antenna ................................................................. 8

Connecting Power ........................................................................................... 9

Using AC Power .......................................................................................... 9

Using Your Vehicle’s Battery Power .......................................................... 10

Connecting an Extension Speaker ................................................................ 10

Connecting an Earphone/Headphones ......................................................... 11

Listening Safely ......................................................................................... 11

Understanding Your Scanner ............................................................................ 12

A Look at the Front Panel .............................................................................. 12

A Look at the Display ..................................................................................... 14

Understanding Banks .................................................................................... 16

Channel Storage Banks ............................................................................. 16

Service Banks ............................................................................................ 16

Understanding Trunking ................................................................................ 16

Operation ............................................................................................................ 17

Turning On the Scanner and Setting Squelch ............................................... 17

Storing Known Frequencies into Channels ................................................... 17

Searching Service Banks .............................................................................. 18

Limit Search ................................................................................................... 19

Scanning the Stored Channels ...................................................................... 20

Manually Selecting a Channel ....................................................................... 20

Clearing a Frequency from a Channel ........................................................... 21

Special Features ............................................................................................... 22

Delay ............................................................................................................. 22

Turning Channel-Storage Banks On and Off ................................................. 22

Locking Out Channels and Frequencies ....................................................... 23

Locking Out Channels ............................................................................... 23

Locking Out Frequencies ........................................................................... 23

Priority ........................................................................................................... 24

Turning the Key Tone On/Off ......................................................................... 25

Changing Search Speeds .............................................................................. 25

Skipping Data Signals ................................................................................... 25

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Trunk Tracking ................................................................................................... 26

Types of Trunking Systems ........................................................................... 26

Setting the Scanner to the Trunk Tracking Mode .......................................... 27

Setting Squelch for the Trunk Tracking Mode ............................................... 27

Programming Trunked Frequencies .............................................................. 28

Scanning a Trunked Bank ............................................................................. 29

Monitoring an Active ID ............................................................................. 30

Locking Out IDs ......................................................................................... 30

Unlocking a Single ID ................................................................................ 31

Unlocking All IDs ....................................................................................... 31

Using Trunk Tracking Scan Delay ............................................................. 31

Monitoring IDs ........................................................................................... 32

Channel Activity Indicators ............................................................................ 32

Scan Lists ..................................................................................................... 33

Manually Storing IDs into Scan Lists ......................................................... 33

Storing IDs Into Scan Lists While Searching ............................................. 34

Automatically Storing an ID in a Scan List Location .................................. 34

Deleting a Stored ID .................................................................................. 34

Scanning the Scan Lists ............................................................................... 34

Scanning Type I and Hybrid Trunked Systems ............................................. 35

Selecting a Preset Fleet Map .................................................................... 38

Programming a Fleet Map ......................................................................... 39

Programming a Hybrid System ................................................................. 40

A General Guide to Scanning ........................................................................... 41

Guide to Frequencies .................................................................................... 41

National Weather Frequencies .................................................................. 41

Canadian Weather Frequencies ............................................................... 41

Birdie Frequencies .................................................................................... 41

Guide to the Action Bands ............................................................................ 42

Typical Band Usage .................................................................................. 42

Primary Usage .......................................................................................... 43

Band Allocation ............................................................................................. 43

Frequency Conversion .................................................................................. 48

Troubleshooting ................................................................................................ 49

Resetting the Scanner .................................................................................. 52

Care and Maintenance ...................................................................................... 53

Specifications .................................................................................................... 54

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PREPARATION

This scanner is designed primarily for

use in the home as a base station.

You can place it on a desk, shelf, or

table.

Your scanner’s front feet fold up or

down. Adjust them to give you the

best view of the display.

The scanner’s sensitivity depends on

the antenna’s length and various envi-

ronmental conditions. For the best re-

ception of the transmissions you want

to hear, adjust the antenna’s length.

Your scanner’s display is protected

during shipment by a piece of blue

film. Peel off this film before you use

the scanner.

Frequency

Antenna Length

29–54 MHz

Extend fully

CONNECTING AN

ANTENNA

108–174 MHz

Collapse one

segment

406–956 MHz

Collapse both

segments

Connecting the Supplied

Antenna

You must install an antenna before

you can operate the scanner.

Connecting an Outdoor

Antenna

The supplied telescoping antenna

helps your scanner receive strong lo-

cal signals. To install the antenna,

screw it clockwise into the hole on the

scanner’s top.

Instead of the supplied antenna, you

can connect an outdoor base-station

or mobile antenna (not supplied) to

your scanner using a BNC connector.

Your local RadioShack store sells a

variety of antennas. Choose the one

that best meets your needs.

When deciding on a mobile or base-

station antenna and its location, con-

sider these points:

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• The antenna should be as high as

possible on the vehicle or building.

Cautions:

• Do not run the cable over sharp

edges or moving parts that might

damage it.

• The antenna and its cable should

be as far as possible from sources

of electrical noise (appliances,

other radios, etc.).

• Do not run the cable next to power

cables or other antenna cables.

• The antenna should be vertical for

the best performance.

Use extreme caution

Warning:

when you install or remove an out-

door antenna. If the antenna starts

to fall, let it go! It could contact

overhead power lines. If the anten-

na touches a power line, contact

with the antenna, mast, cable, or

guy wires can cause electrocution

and death. Call the power compa-

ny to remove the antenna. DO

NOT attempt to do so yourself.

To connect an optional base-station or

mobile antenna, first remove the sup-

plied antenna from the scanner. Al-

ways 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 an-

tenna cable’s connector does not fit in

the ANT. jack, you might also need a

Motorola-to-BNC antenna plug adapt-

er, such as RadioShack Cat. No. 278-

117. Your local RadioShack store car-

ries a wide variety of coaxial antenna

cable and connectors.

CONNECTING POWER

Using AC Power

The scanner’s supplied AC adapter

lets you power the scanner from a

standard AC outlet. To connect power

to the scanner, insert the AC adapter’s

barrel plug into the DC 12V jack on the

back of the scanner, then plug the AC

adapter into a standard AC outlet.

Once you choose an antenna, follow

the mounting instructions supplied

with the antenna. Then route the an-

tenna’s cable to the scanner and con-

nect the cable to the ANT. jack on the

back of the scanner.

ANT

DC 12V

ANT

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Cautions:

ANT

• The supplied AC adapter supplies

12 volts DC power and delivers

500 milliamps. Its center tip is set

to positive, and its plug properly

DC 12V

fits the scanner’s

jack.

Cautions:

Using an adapter that does not

meet these specifications could

damage the scanner or the

adapter.

• If you use a DC cigarette lighter

power cable with the scanner, it

must supply 12 volts and at least

500 milliamps of DC automotive

power. Its center tip must be set to

positive, and its plug must cor-

rectly fit the

back of the scanner. The recom-

mended power cable meets these

• Be sure to connect the AC

adapter to the scanner before you

connect it to an AC outlet, and dis-

connect the AC adapter from the

AC outlet before you disconnect it

from the scanner.

DC 12V

jack on the

specifications. Using

power

cable that does not meet these

specifications could damage the

scanner or the power cable.

Warning: Do not use the AC adapt-

er’s polarized plug with an extension

cord receptacle unless the blades can

be fully inserted to prevent blade ex-

posure.

• If you use a cigarette lighter power

cable and your vehicle’s engine is

running, you might hear electrical

noise from the engine while scan-

ning. This is normal.

Using Your Vehicle’s Battery

Power

Note: Mobile use of this scanner is

unlawful or requires a permit in some

areas. Check the laws in your area.

If your AC power fails (during an

emergency, for example), you can

power your scanner from your vehi-

cle’s cigarette lighter socket with an

optional DC cigarette lighter power ca-

ble, such as Cat. No. 270-1533 (not

supplied).

CONNECTING AN

EXTENSION SPEAKER

To connect an optional DC cigarette

lighter power cable, insert its barrel

In a noisy area, an amplified extension

speaker (such as Cat. No. 21-541),

positioned in the right place, might

provide more comfortable listening.

DC 12V

plug into the

jack on the back

of the scanner, then plug the power

cable into your vehicle’s cigarette

lighter socket.

Plug the speaker cable’s /⁸-inch plug

into your scanner’s

jack.

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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 per-

manent hearing loss.

VOLUME

• Set

to the lowest setting

before you begin listening. After

Note: Connecting an external speaker

disconnects the scanner’s internal

speaker.

VOL-

you begin listening, adjust

UME

to a comfortable level.

VOLUME

• Once you set

, 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

EARPHONE/

HEADPHONES

For private listening, you can connect

an earphone or headphones with a ¹/⁸-

inch plug (such as Cat. No. 33-175 or

20-210) to the

jack on the front of

the scanner. This automatically dis-

connects the internal speaker.

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UNDERSTANDING YOUR SCANNER

Once you understand a few simple terms we use 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 tuning location of a station (expressed in kHz or MHz). To find

active frequencies, you can use the search function.

You can also search the service-search banks, which are preset groups of fre-

quencies categorized by type of service.

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.

A LOOK AT THE FRONT PANEL

Your scanner’s keys might seem confusing at first, but this information should help

you understand each key’s function.

Note: Some of the scanner’s keys perform more than one function and are marked

with more than one label. The steps in this Owner’s Manual show only the label on

the key appropriate to the action being performed.

VOLUME

Turns the scanner on or off and adjusts the volume.

Adjusts the scanner’s squelch.

SQUELCH

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SCAN

Scans through the stored channels.

MANUAL

Stops scanning and lets you directly enter a channel

number or frequency.

TRUNK

Switches between conventional and trunk tracking

modes.

SVC (service)

Selects a service bank.

PRIORITY/SPEED

Sets and turns on and off the priority feature; turns the

HyperSearch mode on and off.

Number Keys

Each key has a single-digit label and a range of num-

bers. The single digits are used to enter a channel,

frequency, or ID number. The range of numbers (31–

60, for example) indicates the channels that make up

a memory bank.

Enters a decimal point.

Clears an entry.

•

CLEAR

E (enter)

LIMIT/t

DELAY

Enters frequencies into channels or enters IDs into a

scan list.

Sets the frequency range; sets the search direction

and holds a frequency search.

Programs a 2-second delay for the selected channel,

a limit search, or each service scan. Also programs a

5-second delay in the trunk tracking mode.

Searches a specified frequency range to find frequen-

cies; searches for another active ID in the trunk track-

ing mode.

L/O/SKIP (lock out/skip)

Lets you lock out selected channels or frequencies;

lets you lock out a selected ID in the trunk tracking

mode.

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HOLD/s

Holds on the current ID in the trunk tracking mode;

sets the search direction and holds the frequency

search.

DATA

Turns the data signal skip feature on or off or checks

the current trunking bank in the trunk tracking mode.

A LOOK AT THE DISPLAY

The display has indicators that show the scanner’s current operating status. A good

look at the display will help you understand how your scanner operates.

LIST

BANK

PUB

Appears with a number (1–5) to indicate the list num-

ber.

Appears with numbers (1–10) to indicate the scan

bank.

Appears when you search the public safety service

bank.

POLICE

Appears when you search the police service bank.

FIRE/EMG

Appears when you search the fire/emergency service

bank.

AIR

Appears when you search the air service bank.

Appears when you search the weather service bank.

Appears when the scanner is in trunk tracking mode.

TRUNK

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Shows which control/voice channels are currently

(channel activity indicator) active.

Appears when a priority channel is selected.

SCAN

MANUAL

Appears when you scan channels.

Appears when you set the scanner to its manual

mode.

PRI

Appears when the priority feature is turned on.

HOLD

Appears when the scanner is in the hold mode during

a search.

DELAY

Appears when you program a delay.

DATA

Appears when the data skip function is active.

L/O(lockout)

Appears when you manually select a channel, frequen-

cy, or ID you locked out.

tSEARCHs

Lights steadily during a limit search, service search,

and ID search, and blinks while HyperSearch is active

and when you monitor IDs. The arrow indicates the

search direction.

Error

Appears when you make an entry error.

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UNDERSTANDING

BANKS

UNDERSTANDING

TRUNKING

In the past, groups that broadcast fre-

quently, such as police departments,

were restricted to transmitting on just

a few frequencies. This resulted in

heavy traffic and often required 2-way

radio users to wait for a specific fre-

quency to clear before transmitting.

Channel Storage Banks

To make it easier to identify and select

the channels you want to listen to,

channels are divided into 10 banks of

30 channels each. Use each channel-

storage bank to group frequencies,

such as those used by the police de-

partment, fire department, ambulance

services, or aircraft (see “Guide to the

Action Bands” on Page 39). For exam-

ple, the police department might use

four frequencies, one for each side of

town. You could program the police

frequencies starting with Channel 1

(the first channel in bank 1) and pro-

gram the fire department frequencies

starting with Channel 31 (the first

channel in bank 2).

Trunked systems allow more groups

of 2-way radio users to use fewer fre-

quencies. Instead of selecting a spe-

cific frequency to transmit on, a

trunked system chooses one of sever-

al frequencies when the 2-way radio

user presses PTT (push to talk). 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 data channel.

You can set this scanner to monitor

the data channel frequency, so you

can hear both the call and response

transmissions for that 2-way radio

user and therefore follow the conver-

sation. (You cannot listen to the data

channel itself in the trunk mode.)

Service Banks

The scanner is preprogrammed with

the frequencies allocated by public

safety, police, fire/emergency, aircraft,

and weather services. This is handy

for quickly finding active frequencies

instead of searching through an entire

band (see “Searching Service Banks”

on Page 18).

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OPERATION

TURNING ON THE

SCANNER AND SETTING

SQUELCH

STORING KNOWN

FREQUENCIES INTO

CHANNELS

1. Turn SQUELCH and VOLUME fully

Good references for active frequen-

cies are the RadioShack “Police Call

Guide including Fire and Emergency

Services,” “Official Aeronautical Fre-

quency Directory,” and “Maritime Fre-

quency Directory.” We update these

directories every year, so be sure to

get a current copy.

counterclockwise.

Note: To store trunking system fre-

quencies, see “Programming Trunked

Frequencies” on Page 26.

2. Turn VOLUME back clockwise until

you hear a hissing sound.

Follow these steps to store frequen-

cies into channels.

3. Turn SQUELCH clockwise, then

leave it set to a point just after the

hissing sound stops.

1. Press MANUAL, enter the chan-

nel number (1–300) where you

want to store a frequency, then

press MANUAL again. The chan-

nel number appears.

Notes:

• If the scanner will not scan, turn

SQUELCH further clockwise.

2. Use the number keys and

•

enter the frequency (including the

decimal point) you want to store.

• If the scanner picks up unwanted,

partial, or very weak transmis-

sions, turn SQUELCH clockwise to

decrease the scanner’s sensitivity

to these signals. If you want to lis-

ten to a weak or distant station,

turn SQUELCH counterclockwise.

• If SQUELCH is adjusted so you

always hear a hissing sound, the

scanner does not scan properly.

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20-430.fm Page 18 Wednesday, August 4, 1999 1:29 PM

3. Press E to store the frequency into

stores this setting in the chan-

nel.

the channel.

4. If you want to program the next

channel in sequence, press MAN-

UAL and repeat Steps 2 and 3.

SEARCHING SERVICE

BANKS

You can search for public service, po-

lice, fire/emergency, aircraft, and

weather transmissions even if you do

not know the specific frequencies that

are used in your area. And, you can

store any of the frequencies you find

into channels.

Notes:

• If you made a mistake in Step

2, Error appears and the

scanner beeps when you press

E. Simply start again from Step

Your scanner has the following pre-

programmed service banks.

• Your scanner automatically

rounds the entered frequency to

the nearest valid frequency. For

example, if you enter a fre-

quency of 151.473, your scan-

ner accepts it as 151.475.

• PUBLIC — contains 140 public

service frequencies

• POLICE — contains 2,392 police

frequencies

• FIRE/EMG — contains 197 fire

and emergency service frequen-

cies

• If you entered a frequency that

is already stored in another

channel, the scanner beeps

three times and displays the

lowest channel number where

the frequency is already stored.

If you want to store the fre-

quency anyway, press E again.

• AIR — contains 2,319 aircraft and

air service frequencies

• WX — contains 7 weather fre-

quencies

To select a service bank, press SVC. A

service bank’s name (PUB, PO-

LICE, FIRE/EMG, AIR, or WX)and

one of the preset public service fre-

quencies appear. After a 2-second de-

lay, searching begins.

• Press DELAY if you want the

scanner to pause 2 seconds on

this channel after a transmis-

sion ends before it proceeds to

the next channel (see “Delay”

on Page 21). The scanner also

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20-430.fm Page 19 Wednesday, August 4, 1999 1:29 PM

To select another service bank, re-

peatedly press SVC until the scanner

displays the name of the bank you

want to use.

LIMIT SEARCH

If you do not know a frequency to

store, you can search for transmis-

sions within a range of frequencies

you select, called the limit search

range. Then you can store any inter-

esting frequencies you find into chan-

nels.

Notes:

• To skip data signals (such as

modem signals), press DATA. See

“Skipping Data Signals” on

Page 23.

1. Press MANUAL, enter the chan-

nel number where you want to

store a frequency, then press

MANUAL again. The channel num-

ber appears.

• Because frequencies are not

always assigned to the same ser-

vices everywhere, you might hear

transmissions from one service in

another service group.

2. Use the number keys and

•

enter the frequency that is the

lower limit of the range you want

to search.

Press SEARCH to start searching im-

mediately or to continue searching if

you want to skip a frequency.

3. Press LIMIT.

During service-search, you can press

HOLD to pause the searching. HOLD

appears. Press s or t to move up or

down one step, or press SEARCH to

resume searching.

Follow these steps to store frequen-

cies into channels.

1. Press MANUAL.

4. Use the number keys and

•

2. Use the number keys to enter the

channel number (1–300) where

you want to store the frequency,

then press MANUAL.

enter the frequency that is the

upper limit of the range you want

to search.

5. Press LIMIT, then press SEARCH.

The scanner begins to search

from the lower limit to the upper

limit.

3. Press SVC then SEARCH to select a

service bank and begin searching.

4. When the scanner stops on a

transmission, press HOLD. The

frequency appears.

6. When the scanner stops on a

transmission, quickly press either:

5. Press E to store the frequency into

• E to store the displayed fre-

the channel.

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20-430.fm Page 20 Wednesday, August 4, 1999 1:29 PM

quency into the channel. The

scanner stores the frequency.

MANUALLY SELECTING

A CHANNEL

• s or t to stop searching so you

can listen to the transmission.

HOLDappears.

You can continuously monitor a single

channel without scanning. This is use-

ful if you hear an emergency broad-

cast on a channel and do not want to

miss any details — even though there

might be periods of silence — or if you

want to monitor a specific channel.

To release hold and continue

searching, press SEARCH.

Notes:

• To step through the frequencies

while HOLDappears, press s or t.

Follow these steps to manually select

a channel.

• If you tune to a search skip fre-

quency, L/Oappears. See “Lock-

ing Out Channels and Fre-

quencies” on Page 23.

1. Press MANUAL.

2. Enter the channel number.

3. Press MANUAL again.

• To skip data signals (such as

modem signals), press DATA. See

“Skipping Data Signals” on

Page 23.

Or, if your scanner is scanning and

stops at the desired channel, press

MANUAL one time. (Pressing MANUAL

additional times causes your scanner

to step through the channels.)

SCANNING THE STORED

CHANNELS

To resume scanning, press SCAN.

To begin scanning channels, press

SCAN. The scanner scans through all

non-locked channels in all banks that

are turned on, then stops on the first

transmission it finds. When the trans-

mission ends, the scanner resumes

scanning.

CLEARING A

FREQUENCY FROM A

CHANNEL

1. Press MANUAL.

2. Use the number keys to enter the

channel number containing the

frequency you want to delete.

Then press MANUAL again.

Notes:

• Channels with no frequencies are

automatically locked out during

scanning.

3. Press 0, then press E. The fre-

• To scan in the trunk tracking

mode, see “Scanning a Trunked

Bank” on Page 27.

quency is deleted.

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SPECIAL FEATURES

To turn off the 2-second delay, press

DELAY while the scanner is monitoring

the channel or searching service

banks or limit ranges. DELAY disap-

pears.

DELAY

Many agencies use a two-way radio

system that might have a period of 2

or more seconds between a query and

a reply. To keep from missing a reply,

you can program a 2-second delay

into any channel or frequency. The

scanner continues to monitor the fre-

quency for 2 seconds after the trans-

mission stops before resuming

scanning or searching.

TURNING CHANNEL-

STORAGE BANKS ON

AND OFF

You can turn each channel-storage

bank on and off. When you turn off a

bank, the scanner does not scan any

of the 30 channels in that bank.

To program a 2-second delay:

While scanning, press the number key

that corresponds to the bank you want

to turn on or off. If the bank number is

on, the bank is turned on and the

scanner scans all channels within that

bank that are not locked out. If the

bank number is off, the scanner does

not scan any of the channels within

that bank.

• If the scanner is scanning chan-

nel-storage banks and stops on

an active channel where you want

to store a delay, quickly press

DELAY before scanning resumes.

DELAYappears.

Notes:

• You can manually select any

channel within a bank, even if that

bank is turned off.

• If the desired channel is not

selected, manually select the

channel, then press DELAY.

DELAYappears.

• You cannot turn off all banks. One

bank is always active.

• If the scanner is searching, press

DELAY. DELAY appears and the

scanner automatically adds a 2-

second delay to every transmis-

sion it stops on in that band or

limit range.

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20-430.fm Page 22 Wednesday, August 4, 1999 1:29 PM

L/O

scanning, then hold down

scanner beeps twice.

until the

LOCKING OUT

CHANNELS AND

FREQUENCIES

Locking Out Frequencies

You can scan existing channels or

search frequencies faster by locking

out channels or frequencies that have

a continuous transmission, such as a

weather channel.

To lock out a frequency during a limit

search or service bank search, press

L/O

when the scanner stops on the

frequency. The scanner locks out the

frequency, then continues searching.

To lock out a frequency manually, se-

Note: If you just want to skip over a

lengthy transmission (such as a mo-

dem signal), see “Skipping Data Sig-

nals” on Page 23.

L/O

lect the frequency and press

until

L/Oappears.

Notes:

• The scanner does not display

locked-out frequencies during a

search.

Locking Out Channels

To lock out a channel while scanning,

L/O

press

when the scanner stops on

• L/O appears when you select a

locked-out frequency.

the channel. To lock out a channel

manually, select the channel and

• You can lock out up to 50 frequen-

cies during a limit search and 20

during a service bank search. If

you try to lock out more frequen-

cies, the first locked-out frequency

is automatically unlocked.

L/O

press

until L/Oappears.

To remove the lockout from a fre-

quency, select the frequency then

Note: You can still manually select

locked-out channels.

L/O

press

. L/Odisappears.

To remove the lockout from all fre-

quencies, while searching, press

To remove the lockout from a channel,

L/O

select the channel and press

until

HOLD

L/O

until the

then hold down

L/Odisappears.

scanner beeps twice (about 2 sec-

onds).

To remove the lockout from all chan-

nels in the channel-storage banks that

MANUAL

are turned on, press

to stop

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TURNING THE KEY TONE

ON AND OFF

SKIPPING DATA

SIGNALS

To turn the key tone off, turn off the

scanner. Then, while holding down

You can set the scanner so it skips

nonmodulated or data signals (such

as modem transmissions) during a

scan or search.

L/O/SKIP

, turn on the scanner. OF

bEEPappears.

To turn the key tone back on, repeat

the above procedure. oN bEEP ap-

pears.

Note: Since data signals are not gen-

erally found in the air band, this fea-

ture does not work in the air service

bank.

CHANGING SEARCH

SPEEDS

To turn on the data skip feature, be

sure the priority feature is turned off

(see “Priority” on Page 24), then press

The PRO-2050 has two search

speeds for a limit search.

DATA

. DATA appears. To turn off the

DATA

feature, press

again. DATAdis-

appears.

Normal Search

HyperSearch

100 steps/second

300 steps/second

TRUNK TRACKING

To switch between the normal and Hy-

perSearch speeds, during a limit

Your scanner is designed to track

transmissions on Motorola Type I,

Type II, and hybrid analog trunking

systems, which are extensively used

in 800 MHz communications. Remem-

ber these important points when track-

ing transmissions:

SPEED

search, press

. SEARCHflash-

es during HyperSearch.

• Your scanner monitors Type II

systems by default. However, you

can change this if the system in

your area is different (see “Types

of Trunking Systems” on this page

and “Scanning Type I and Hybrid

Trunked Systems” on Page 33 for

more information).

Note: You can use HyperSearch only

in the 5 kHz step bands (29–54 MHz

and 137–174 MHz).

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To turn on the priority feature, press

PRIORITY

during scanning. PRI ap-

pears. As you scan the bank, the

scanner checks the bank’s priority

channel every 2 seconds in each bank

that is turned on, starting from the low-

est to the highest-numbered priority

channel.

The priority feature lets you scan

through channels and still not miss im-

portant or interesting calls on specific

channels. You can program one

stored channel in each bank as a pri-

ority channel (for up to a total of 10

stored channels). As the scanner

scans the bank, if the priority feature is

turned on, the scanner checks the pri-

ority channel for activity every 2 sec-

onds.

To turn off the priority feature, press

PRIORITY

. PRIdisappears.

Notes:

• The priority feature must be

turned off to use the data skip fea-

ture (see “Skipping Data Signals”

on Page 23).

The scanner automatically desig-

nates each bank's first channel as its

priority channel. Follow these steps to

select a different channel as the priori-

ty channel for a bank.

• You can lock out priority channels.

If you lock out all priority channels,

P CH Loc Out appears when

you turn on the priority feature.

MANUAL

1. Press

2. Enter the channel number you

want to select as the priority chan-

MANUAL

nel, then press

again.

PRIORITY

3. Hold down

scanner beeps twice.

until the

appears

to the right of the channel number.

• Your scanner cannot track trans-

missions on non-Motorola trunking

systems.

• Your scanner tracks an 800 MHz

trunked system or scans frequen-

cies in conventional mode, but it

cannot do both at the same time.

• The frequencies for many of the

800 MHz public safety systems are

listed in the separate “National

Public Safety Trunked System Fre-

quency Guide” included with your

PRO-2050.

4. Repeat Steps 2–3 for the channel

in each bank you want to program

as a priority channel.

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20-430.fm Page 25 Wednesday, August 4, 1999 1:29 PM

subfleets such as dispatch, tactical

operations, detectives, north, south,

east and west side patrols, and super-

visors. All the available police radios

would then be assigned to one of the

police subfleets, letting the police cen-

tralize their communications and con-

trol the type of users on a single

system. Determining the exact fleet-

subfleet hierarchy for a particular area

is referred to as fleet map program-

ming.

TYPES OF TRUNKING

SYSTEMS

Your trunk tracking scanner can moni-

tor two basic types of systems — Type

I and Type II. Instead of selecting a

specific frequency to transmit on, a

trunked system chooses one of sever-

al frequencies in a 2-way radio user’s

talk group when that user presses

PTT (push to talk). Thus, trunking sys-

tems allocate

few frequencies

among many different users, but the

way Type I and Type II systems do

this is slightly different. One important

distinction between these systems is

the amount of data transmitted by

each radio when its PTT button is

pressed. In a Type I system, the ra-

dio’s ID and its current affiliation (the

trunk system it belongs to) are both

transmitted. In a Type II system, only

the radio’s ID is transmitted.

The disadvantage of a Type I system

is that the brief burst of data sent

when a user transmits must contain

the radio’s ID and its fleet and sub-

fleet. This is three times the amount of

data a Type II system radio sends.

Since the data capacity of Type I sys-

tems is limited and the amount of data

increases with each user, Type I sys-

tems usually accommodate fewer us-

ers than Type II systems. Never-

theless, Type I systems are still in use.

Why the difference? In Type I sys-

tems, each radio in the trunk group in-

dividually transmits its own affiliation,

while the trunk system maintains a da-

tabase that determines each radio's

affiliation(s) in Type II systems.

There are also hybrid systems which

are a combination of both Type I and

Type II. Your scanner defaults to mon-

itor Type II systems, but you can

change to Type I or a hybrid of Type I

and Type II systems by selecting a

preprogrammed fleet map or creating

a custom fleet map for your area (see

“Scanning Type I and Hybrid Trunked

Systems” on Page 33).

Another difference between the sys-

tems is that Type I systems are ar-

ranged in a fleet-subfleet hierarchy.

For example, it is possible for a city

using a Type I system to designate 4

fleets, each with 8 subfleets.

You do not need to determine the

fleet-subfleet hierarchy for Type II sys-

tems unless you are tracking hybrid

systems that contain both Type I and

Type II systems.

The fleets might be the police depart-

ment, the fire department, utilities, and

city administration. The police might

decide to further divide its fleet into

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20-430.fm Page 26 Wednesday, August 4, 1999 1:29 PM

SETTING THE SCANNER

TO THE TRUNK

TRACKING MODE

Note: You can change this setting, if

necessary, to provide better perfor-

mance in your area.

TRUNK

Press

to switch between the

scanner’s conventional and trunk

tracking modes.

PROGRAMMING

TRUNKED

FREQUENCIES

Before you program your scanner to

track a trunked system, consider the

following:

• Valid trunked system frequencies

range from 851.0000–868.9875 in

12.5 kHz steps.

• You can use any of your scanner’s

banks as either a trunk tracking

bank or conventional scanning

bank, but you cannot mix the two.

SETTING SQUELCH FOR

THE TRUNK TRACKING

MODE

• The scanner only scans one

trunked system at a time. Al-

though you can store frequencies

for more than one trunked system

in one of your scanner’s banks,

the scanner only scans the fre-

quencies associated with the first

data channel it finds.

Your scanner’s squelch setting is au-

tomatically adjusted in the trunking

mode, which means you do not need

to manually adjust squelch while

tracking trunked transmissions. How-

ever, the squelch setting can affect

how fast your scanner acquires the

data channel, and, in some instances,

can prevent your scanner from acquir-

ing the data channel at all.

Before scanning a trunked system’s

transmissions, you must store the

trunked system’s frequencies in one of

the banks in your scanner by following

these steps.

SQUELCH

We recommend you set

this position before selecting a trunked

bank.

TRUNK

1. Hold down

until the scanner

beeps twice. BANK, TRUNK, and

the bank numbers flash.

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20-430.fm Page 27 Wednesday, August 4, 1999 1:29 PM

2. Select the bank you want to store

the trunked system’s frequencies

in by pressing a number key. The

scanner automatically selects the

first channel in the bank.

6. Repeat Steps 3 and 4 until all fre-

quencies have been entered.

SCANNING A TRUNKED

BANK

3. Use the number keys to enter the

trunked system’s frequencies,

then press E.

You can scan one trunked bank at a

time. Once you have stored frequen-

cies for a trunked system in one or

more of the 10 available banks and

you are scanning non-trunked fre-

quencies, follow these steps to begin

trunk scanning.

1. Press TRUNK. The indicators for

all banks flash.

If you entered an invalid fre-

Note:

quency in Step 3, the scanner

beeps, the channel number

flashes and Error appears. If

this happens, press CLEAR to

clear the frequency, then repeat

Step 3.

2. Use the number keys to enter the

number for the trunked bank you

want to scan, then press SEARCH

to begin searching for the trunk’s

data channel (the channel that

controls the trunk). SEARCH

flashes as the scanner searches

for a data channel. When the

scanner finds it, it begins trunk

tracking.

If you entered all of the trunk’s fre-

quencies, you should be able to

follow conversations between

broadcasters even when they

change frequencies. IDs, which

represent different service groups,

appear.

5. Press either MANUAL or s to

select the next channel in the

bank.

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20-430.fm Page 28 Wednesday, August 4, 1999 1:29 PM

the ID you want to hold. LIST1

appears

HOLD

3. Press

again. HOLDflashes

and the scanner monitors that ID.

Note: To see the bank currently in

use for about 5 seconds, press

DATA

while in the trunk tracking

mode.

3. To return to conventional scan-

TRUNK

ning, press

again.

4. When you want to stop the hold

and resume searching for a data

channel so you can continue trunk

Hint: While scanning, you will not

know exactly whom the IDs are as-

signed to until you listen awhile or until

you locate ID lists in frequency guides

or on internet sites such as

www.trunkscanner.com. Within a few

minutes, you can usually figure out if

what you are listening to is a police,

fire, or emergency medical 2-way ra-

dio user. Other IDs might take some

time, but determining whom each ID

represents is half the fun of trunk

tracking!

tracking, press

Note: You can also follow these steps

to hold on an ID while scanning a scan

list. See “Scan Lists” on Page 31.

Locking Out IDs

As with conventional scanning, it is

possible to lock out unwanted traffic.

This is particularly important in trunk-

ed systems because signals you can-

not listen to (such as water meters,

door alarms, traffic signals, and en-

crypted signals) are assigned IDs just

like other users. You can have up to

100 IDs locked out at one time.

Monitoring an Active ID

When the scanner stops on a trans-

mission, you can hold the scanner on

that transmission.

HOLD

1. Press

. HOLD appears and

Note: If you lock out an ID while

searching, it is also locked out of the

scan list(s). See “Scan Lists” on

Page 31.

the scanner stays on the current

ID.

2. If you want to listen to a different

ID, use the number keys to enter

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To lock out an ID, press L/O when the

ID appears.

Using Trunk Tracking Scan

Delay

Many trunked systems have a period

of 2 or more seconds between a query

and a reply. You can program a 5-

second delay so the scanner holds on

an ID for 5 seconds to wait for a reply.

The scanner continues to monitor the

frequency for 5 seconds after the

transmission stops before resuming

scanning.

The ID is locked out, and the next ac-

tive ID appears.

Unlocking a Single ID

Press DELAY to turn trunk tracking

scan delay on or off. DELAYappears

when trunk tracking scan delay is set.

1. Hold down L/O until you hear two

short beeps.

2. Repeatedly press t or s to select

the ID you want to unlock.

3. Press L/O.

The ID is unlocked and the next

locked ID appears.

4. Press SEARCH to continue the

scanner’s previous function.

Unlocking All IDs

If you consistently miss re-

Note:

sponses even with trunk tracking scan

delay set, you might need to change

the default system type or the fleet

map you are using. See “Scanning

Type I and Hybrid Trunked Systems”

on Page 33.

Hold down L/O until you hear two short

beeps. Then press E to unlock all the

IDs at once.- The scanner beeps

twice.

When you unlock all the IDs,

Note:

the scan list mode appears. Press

SCAN to scan the IDs stored in your

scan lists or press SEARCH to contin-

ue the scanner’s previous function.

For more information about scan lists,

see “Scan Lists” on Page 31.

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Monitoring IDs

You can use your scanner’s display to

monitor the frequencies in a trunked

system for activity. You cannot hear

conversations in this mode, but this is

an excellent way to determine which

talk groups are the most active. To set

the scanner to monitor IDs, hold down

SEARCH until the scanner beeps

twice. SEARCHflashes, and all active

talk group IDs appear in succession.

To stop monitoring IDs, press

SEARCH again.

Each frequency you store in a trunking

bank has a corresponding activity indi-

cator.

• The indicator that remains on

steadily even when there are no

current transmissions represents

the frequency being used as the

data channel.

• The indicator that flashes when an

ID appears represents the fre-

quency being used by the radio

you are currently hearing.

Note: When you monitor IDs, locked-

out IDs also appear.

• If an indicator turns on but you do

not hear a conversation, the chan-

nel is probably being used for a

telephone interconnect call or a

private call, or the indicator might

be a locked-out ID. Your scanner

does not monitor these types of

calls.

CHANNEL ACTIVITY

INDICATORS

Your scanner has 30 channel activity

indicators (bars) which show the activ-

ity taking place on a trunked system.

You can see how many frequencies

are being used and generally monitor

how much communication traffic is oc-

curring.

• If the scanner is holding on an ID

which is not active, the other activ-

ity indicators turn on and off as

other groups use the system.

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SCAN LISTS

Scan List Number

When you program trunked frequen-

cies into a bank (see “Programming

Trunked Frequencies” on Page 26),

your scanner sets up 5 scan lists into

which you can store your favorite IDs.

Each list can contain up to 10 IDs, so

you can store a total of 50 IDs for each

trunk tracking bank (500 IDs if you use

all banks as trunking banks!).

3. Repeatedly press s or t to select

the scan list location (shown at the

top of the display) you want to

program.

Scan lists help you organize trunking

system users into categories. For ex-

ample, you might use List 1 for police

IDs, List 2 for fire department IDs, List

3 for emergency medical service IDs,

and so on. Once IDs are stored in

lists, you can scan them like you scan

conventional channels. You can pro-

gram IDs into scan lists manually, dur-

ing a search, or automatically.

4. Enter the Type II ID you want to

store, then press .

Manually Storing IDs into

Scan Lists

Or, to enter a Type I ID:

a. Use the number keys to enter

the block number and the fleet

1. Select the trunking bank you want

(see “Scanning a Trunked Bank”

on Page 27).

number, then press .

•

b. Enter the subfleet number, then

press .

2. After the scanner begins trunk

MANUAL

tracking, press

. A scan

Note: To clear a mistake while

list number appears at the top of

the display, and a bar shows the

channel activity.

CLEAR

entering an ID, press

start over at Step 4.

, then

MANUAL

5. Repeatedly press

or s to

select the next scan list location

you want to program. Then repeat

Step 4 to enter another ID.

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20-430.fm Page 32 Wednesday, August 4, 1999 1:29 PM

Storing IDs into Scan Lists

While Searching

Deleting a Stored ID

1. Press MANUAL.

Follow these steps to select a scan list

location and store an ID during a

search.

2. Repeatedly press s or t to select

the scan list location (shown at the

top of the display) you want to

delete.

1. When your scanner stops on an

ID you want to store, press PRI-

ORITY. The currently selected

scan list memory location flashes.

Scan List Location

2. Press E to store the ID in the

selected scan list memory loca-

tion. Or, repeatedly press s or t to

select the scan list memory loca-

tion you want, then press E.

3. Press SEARCH to resume search-

3. Press 0 then E.

ing.

Automatically Storing an ID in

a Scan List Location

To display a scan list location and

store an ID in that location during a

search, press PRIORITY to display the

current scan list location, then press E

when your scanner stops on an ID you

want to store.

SCANNING THE SCAN

LISTS

To store an ID in the first available

scan list location during a search,

press E at any time.

Press SCAN to begin scanning the

lists you have programmed. SCAN

scrolls on the display.

Note: If you haven’t programmed any

IDs, SCAN scrolls on the display but

your scanner does not stop on an ac-

tive conversation.

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20-430.fm Page 33 Wednesday, August 4, 1999 1:29 PM

To remove a scan list from active

scanning, use the number keys to en-

ter the scan list’s number. The scan

list indicator turns off, and the IDs in

that list are not scanned.

user IDs) system. (See “Types of

Trunking Systems” on Page 25.)

You might also notice that you are

missing responses when you hold on

an active ID. Unlike Type II systems,

Type I and hybrid systems require a

fleet map that sets specific fleet-sub-

fleet parameters. It is easy to select a

fleet map to scan; what is not always

easy is selecting or programming a

map that is being used in your particu-

lar area.

Note: You cannot remove all the scan

lists. One scan list must always be ac-

tive.

To restore a scan list to active scan-

ning, use the number keys to enter its

number again.

ner’s previous function.

Press

to return to the scan-

When a Type I system is designed,

the address information for all its user

IDs is divided into 8 equal-size blocks,

numbered 0–7, and each block is as-

signed a size code. When you set up

your scanner to track a Type I system,

you must choose a size code for each

block. When you have chosen a size

code for all 8 blocks, you will have du-

plicated the fleet map for the system

you are tracking. If you have chosen

correctly, you will be able to track

transmissions in that system.

SCANNING TYPE I AND

HYBRID TRUNKED

SYSTEMS

Your PRO-2050 is set to scan Type II

user IDs by default. When you scan

trunked frequencies, each Type II user

ID you see appears as an even num-

ber without a dash (such as 2160).

Your PRO-2050 can also scan Type I

trunked systems. Each Type I ID ap-

pears as a three- or four-digit number,

followed by a hyphen, followed by a

one- or two-digit number (such as

200-14).

Each size code defines the number of

fleets, subfleets, and IDs each block

has. For example, you can see in the

following table that a size code of S4

has one fleet, which is divided into 16

separate subfleets, and it has a total

of 512 individual IDs.

If you notice a mix of odd- and even-

user IDs (such as 6477, 2160, 6481,

6144, and 1167), then you are proba-

bly monitoring either a Type I or hybrid

(a combination of Type I and Type 2

Size Fleets Sub-

fleets

IDs

Block

Used

Reserved block for Type II IDs

128 16

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20-430.fm Page 34 Wednesday, August 4, 1999 1:29 PM

Note: www.trunkscanner.com plans to

make preset fleet maps available as

they become known.

128

512

If you do not already know the size

codes used, you will have to guess

them. But since you do not have to fig-

ure out all the blocks at once, this is

not as hard as it seems. Select a size

code for a block, then press

128

256

1024

2048

4096

Now listen to the communications. If

you decide you are receiving most of

the replies to the conversations with

IDs assigned to the block you just pro-

grammed, then you have probably se-

lected the right size code and can

work on the next block of the map.

S10

S11

S12

S13

S14

There are 16 preset fleet maps to

choose from, and it is best to start with

these when setting up a Type I or hy-

brid trunk tracking bank. If none of the

following preset fleet maps allow you

to follow complete conversations, then

you probably need to program your

own fleet map (see “Programming a

Fleet Map” on Page 36)

Each ID in the block is unique. The

left-most digit is the block number in

the ID. The next two digits identify

which fleet is active, and the last dig-

it(s) (after the hyphen) identifies the

subfleet.

The size codes selected by a Type I

system designer depend on the spe-

cific needs of the system’s users.

Some organizations might want many

subfleets with only a few radios each,

while another organization might want

only a few subfleets, with many radios

each. To scan Type I systems, you

must select or program a fleet map

with the same size code assignments

as the trunked system. If you do this

accurately, you will track all the fleet

and subfleet combinations used by the

system. In other words, you will hear

complete communications while moni-

toring a trunked system.

E1P1

E1P2

Block Size

Code

Block Size

Code

S11

E1P3

E1P4

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Block Size

Code

Block Size

Code

S12

—

S12

—

E1P9

E1P10

Block Size

Code

Block Size

Code

E1P5

E1P6

Block Size

Code

Block Size

Code

Block Size

Code

Block Size

Code

S12

—

S10

S12

—

E1P11

E1P12

S12

—

Block Size

Code

Block Size

Code

E1P7

E1P8

Block Size

Code

Block Size

Code

S10

S11

E1P13

E1P14

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20-430.fm Page 36 Wednesday, August 4, 1999 1:29 PM

Block Size

Code

Block Size

Code

3. Press DATA.

S11

S10

4. Repeatedly press s or t to select

E1(Type I and hybrid), then press

DATA again.

S12

—

To select Type II, press E

Note:

when E2appears.

E1P15

E1P16

5. Repeatedly press s or t to select

the name of the map you want

(such as E1P7), then press E.

Block Size

Code

Block Size

Code

The scanner then searches for trans-

missions using the preset map you

chose.

S10

S11

When the scanner searches for

Note:

transmissions, you see Type I fleet

and subfleet IDs such as 100-12,

100-9, 000-12, or 400-8.

S12

—

S12

—

How do you know if the preset map

you selected is correct? Listen to see

if you are following complete conver-

sations. If not, try another preset map.

Selecting a Preset Fleet Map

1. Press SCAN, then hold down

TRUNK until the scanner beeps

twice. BANK, TRUNK and the

bank numbers flash.

Programming a Fleet Map

1. Hold down TRUNK until the scan-

ner beeps twice. BANK, TRUNK

and the bank number flash.

2. Select the bank where you want to

store the preset fleet map by

pressing a number key.

2. Select the bank where you want to

program the fleet map by pressing

a number key.

3. Press DATA.

4. Repeatedly press s or t until E1

appears, then press DATA.

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20-430.fm Page 37 Wednesday, August 4, 1999 1:29 PM

5. Repeatedly press s or t until USr

would not see another prompt be-

cause it uses all available blocks.

appears.

PROGRAMMING A

HYBRID SYSTEM

A hybrid system is simply a Type I

system with some of its blocks desig-

nated as Type II blocks. To program a

hybrid system, follow the steps listed

in “Programming a Fleet Map.” How-

ever, if you want a block to be Type II,

select size code S0in Step 7.

6. Press DATA.

7. Repeatedly press s or t to select

the size code for the first block,

then press E. The next available

block appears.

8. Repeat Step 7 until you have

selected a size code for each

block you want to work with.

9. Press SEARCH. The scanner exits

the trunking programming mode,

tunes the data channel, then

begins to search using the map

you programmed.

If you select size code S12,

Note:

S13, or S14, these restrictions apply:

• S12 can only be assigned to

Blocks 0, 2, 4, or 6.

• S13 can only be assigned to

Blocks 0 and 4.

• S14 can only be assigned to Block

Since these size codes require multi-

ple blocks, you will be prompted for

the next available block when pro-

gramming a fleet map. For example, if

you assign Block 0 as an S12, the

scanner prompts you for b2, the next

block available, instead of b1. And if

you assign Block 0 as an S14, you

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20-430.fm Page 38 Wednesday, August 4, 1999 1:29 PM

A GENERAL GUIDE TO SCANNING

Reception of the frequencies covered

GUIDE TO

FREQUENCIES

by your scanner is mainly “line-of-

sight.” That means you usually cannot

hear stations that are beyond the hori-

zon.

National Weather

Frequencies

162.400

162.500

162.475

162.550

162.525

162.450

162.425

Canadian Weather

Frequencies

161.650

161.775

163.275

Note: These three frequencies are not

pre-programmed in the weather ser-

vice bank but can be manually pro-

grammed into a channel.

frequencies might interfere with

broadcasts on the same frequencies.

If you program one of these frequen-

cies, you hear only noise on that fre-

quency. If the interference is not

severe, you might be able to turn

Birdie Frequencies

SQUELCH

clockwise to cut out the

birdie. This scanner’s birdie frequen-

cies (in MHz) are:

Every scanner has birdie frequencies.

Birdies are signals created inside the

scanner’s receiver. These operating

171.25

406.7625

407.8125

413.175

413.225

To find the birdies in your individual

scanner, begin by disconnecting the

antenna and moving it away from the

scanner. Make sure that no other near-

by radio or TV sets are turned on near

the scanner. Use the search function

and search every frequency range

from its lowest frequency to the high-

est. Occasionally, the searching will

stop as if it had found a signal, often

without any sound. That is a birdie.

Make a list of all the birdies in your

scanner for future reference.

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20-430.fm Page 39 Wednesday, August 4, 1999 1:29 PM

GUIDE TO THE ACTION

BANDS

Typical Band Usage

VHF Band

Low Range

6-Meter Amateur

Aircraft

U.S. Government

2-Meter Amateur

High Range

29.00–50.00 MHz

50.00–54.00 MHz

108.00–136.00 MHz

137.00–144.00 MHz

144.00–148.00 MHz

148.00–174.00 MHz

UHF Band

U.S. Government

70-cm Amateur

Low Range

FM-TV Audio Broadcast, Wide Band

Public Service

Conventional Systems

Conventional/Trunked Systems

Trunked Systems

Public Safety

High Range

406.00–420.00 MHz

420.00–450.00 MHz

450.00–470.00 MHz

470.00–512.00 MHz

806.00–823.93 MHz

851.00–856.00 MHz

856.00–861.00 MHz

861.00–866.00 MHz

866.00–868.93 MHz

896.11–902.00 MHz

902.00–928.00 MHz

935.00–940.00 MHz

940.00–941.00 MHz

941.00–944.00 MHz

944.00–952.00 MHz

952.00–960.00 MHz

960.00–1000.00 MHz

33-Centimeter Amateur

Private Trunked

General Trunked

Fixed Services

Studio-to-Transmitter Broadcast Links

Private Fixed Services, Paging

Aeronautical Navigation

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20-430.fm Page 40 Wednesday, August 4, 1999 1:29 PM

VHF Band

Primary Usage

As a general rule, most of the radio ac-

tivity is concentrated on the following

frequencies:

Activities

Frequencies

Government, Police, and Fire

Emergency Services

Railroad

153.785–155.980 MHz

158.730–159.460 MHz

160.000–161.900 MHz

UHF Band

Activities

Frequencies

Land-Mobile “Paired” Frequencies

Base Stations

Mobile Units

Repeater Units

Control Stations

450.000–470.000 MHz

451.025–454.950 MHz

456.025–459.950 MHz

460.025–464.975 MHz

465.025–469.975 MHz

Note: Remote control stations and mo-

bile units operate at 5 MHz higher than

their associated base stations and re-

lay repeater units.

AbbreviationsServices

BIFCBoise (ID) Interagency Fire Cache

BUSBusiness

CAPCivil Air Patrol

CBCitizens Band

CCACommon Carrier

CSBConventional Systems

CTSBConventional/Trunked Systems

BAND ALLOCATION

To help decide which frequency rang-

es to scan, use the following listing of

the typical services that use the fre-

quencies your scanner receives.

These frequencies are subject to

change, and might vary from area to

area. For a more complete listing, re-

fer to the “Police Call Radio Guide in-

cluding

Fire

and

Emergency

Services,” available at your local Ra-

dioShack store.

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20-430.fm Page 41 Wednesday, August 4, 1999 1:29 PM

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

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . (Manufacturing, Construction, Farming, Forest Products)

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Coast Guard, Marine Telephone,

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shipboard Radio, 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, Forestry Conservation)

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

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

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . .(Aircraft, Radio Common Carrier, Landline Companies)

TELC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cordless Phones

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

—

–

HIGH FREQUENCY (HF)

(3 MHz 30 MHz)

10-Meter Amateur Band (28.0–29.7 MHz)

29.000–29.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

—

–

VERY HIGH FREQUENCY (VHF)

(30 MHz 300 MHz)

VHF Low Band (29.7–50 MHz—in 5 kHz steps)

29.700–29.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND

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

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

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

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

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

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20-430.fm Page 42 Wednesday, August 4, 1999 1:29 PM

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

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

36.230–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Oil Spill Cleanup, 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, TELC

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

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

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

49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL, TELC

6-Meter Amateur Band (50–54 MHz)

50.00–54.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

Aircraft Band (108–136 MHz)

108.000–121.490 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR

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

121.510–136.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR

U.S. Government Band (137–144 MHz)

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

2-Meter Amateur Band (144–148 MHz)

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

VHF High Band (148–174 MHz)

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

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

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20-430.fm Page 43 Wednesday, August 4, 1999 1:29 PM

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

162.0125–162.35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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

169.55–169.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

173.60–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT

—

–

ULTRA HIGH FREQUENCY (UHF)

(406 MHz 3 GHz)

U. S. Government Band (406–420 MHz)

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

70-Centimeter Amateur Band (420–450 MHz)

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

Low Band (450–470 MHz)

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

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20-430.fm Page 44 Wednesday, August 4, 1999 1:29 PM

FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz)

(Channels 14 through 69 in 6 MHz steps)

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

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

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

...

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

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

Conventional Systems Band – Locally Assigned

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

Conventional/Trunked Systems Band – Locally Assigned

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

Trunked Systems Band – Locally Assigned

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

Public Safety Band – Locally Assigned

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

33-Centimeter Amateur Band (902–928 MHz)

902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM

Private Trunked

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

General Trunked

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

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20-430.fm Page 45 Wednesday, August 4, 1999 1:29 PM

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:

9.62 (MHz) ¥ 1000 = 9620 kHz

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

2780 (kHz) ÷ 1000 = 2.780 MHz

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

300 ÷ 7.1 MHz = 42.25 meters

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20-430.fm Page 46 Wednesday, August 4, 1999 1:29 PM

TROUBLESHOOTING

If your scanner is not working as it should, these suggestions might help you elimi-

nate the problem. If the scanner still does not operate properly, take it to your local

RadioShack store for assistance.

PROBLEM

POSSIBLE CAUSE

REMEDY

Scanner is on but will not SQUELCH is not correctly Adjust SQUELCH clock-

scan.

adjusted.

wise.

Only one channel or no

channels are stored.

Store frequencies into

more than one channel.

Scanner is totally inoper- No power.

ative.

Make sure the scanner is

plugged into a working

AC or DC outlet.

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

not connected.

barrel plug is fully

inserted into the DC 12V

jack.

The scanner must be

reset.

Reset the scanner (see

“Resetting the Scanner”

on Page 49).

Poor or no reception

An antenna is not con-

nected or connected

incorrectly.

Make sure an antenna is

connected to the scan-

ner.

Errorappears.

Programming error.

Reprogram the fre-

quency correctly, includ-

ing the decimal point.

In the scan mode, the

scanner locks on fre-

quencies that have an

unclear transmission.

Programmed frequen-

cies are the same as

“birdie” frequencies.

Avoid programming fre-

quencies listed under

“Birdie Frequencies” on

Page 38 or only listen to

them manually.

Scanner will not track a

trunked system.

The transmission might

not use a system that

can be tracked by your

scanner.

Scan another transmis-

sion.

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20-430.fm Page 47 Wednesday, August 4, 1999 1:29 PM

PROBLEM

POSSIBLE CAUSE

REMEDY

Scanner will not track a

The data frequency is

Find the data frequency

trunked system.

(continued)

missing.

(see “Programming

Trunked Frequencies” on

PROBLEM

POSSIBLE CAUSE

REMEDY

Page 26).

The system you are try-

ing to track is a Type I

Set the scanner to

receive Type I trunked

system, and the scanner frequencies. See “Scan-

is set to scan Type II sys- ning Type I and Hybrid

tems.

Trunked Systems” on

Page 33.

Scanner will not stop

while scanning a scan

list.

No IDs have been

stored.

Store one or more IDs

(see “Scan Lists” on

Page 31).

The IDs you have stored Scan another transmis-

are not active.

sion.

Scanner will not acquire

a data channel.

SQUELCH is not cor-

rectly adjusted for trunk

tracking.

Adjust squelch for trunk

tracking. See “Setting

Squelch for the Trunk

Tracking Mode” on

Page 26.

The frequency used for

Add the frequency used

the data channel is miss- for the data channel to

ing.

the frequency list. (see

“Programming Trunked

Frequencies” on

Page 26).

Missing replies to con-

versations.

The system you are try-

ing to track is a Type I

Set the scanner to

receive Type I trunked

system, and the scanner frequencies. See “Scan-

is set to scan Type II sys- ning Type I and Hybrid

tems.

Trunked Systems” on

Page 33.

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20-430.fm Page 48 Wednesday, August 4, 1999 1:29 PM

PROBLEM

POSSIBLE CAUSE

REMEDY

Missing replies to con- The selected fleet map is Try another preset fleet

versations.

(continued)

incorrect.

map or program your

own fleet map (see

“Scanning Type I and

Hybrid Trunked Systems”

on Page 33).

Not all of the trunk’s fre-

quencies have been

entered.

Enter all of the trunk’s

frequencies.

Channel activity indica-

tors are lighting but no

sound is heard.

The transmission might

be a private or tele-

phone interconnect call.

The scanner does not

scan these types of

transmissions.

Scan for another trans-

mission.

The ID is locked out.

Unlock the ID (see

“Unlocking a Single ID”

on Page 29 or “Unlock-

ing All IDs” on Page 29).

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20-430.fm Page 49 Wednesday, August 4, 1999 1:29 PM

RESETTING THE SCANNER

You might need to reset the scanner if any of the following occur:

• The scanner’s display locks up.

• The scanner does not work properly after you connect power.

• The scanner is dropped or subjected to a physical or electrical shock.

Caution: This procedure clears all the information you have programmed into the

scanner. Use this procedure only when you are sure your scanner is not working

properly.

1. Turn off the scanner.

2. While you press and hold down and , turn on the scanner.

Note: It takes about 10 seconds until the reset is completed. CLEArappears dur-

ing resetting.

Caution: Do not turn off the scanner while you reset it.

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20-430.fm Page 50 Wednesday, August 4, 1999 1:29 PM

CARE AND MAINTENANCE

Your RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-Channel TrunkTracker

Home Scanner is an example of superior design and craftsmanship. The following

suggestions will help you care for your scanner so you can enjoy it for years.

Keep the scanner dry. If it gets wet, wipe it dry immediately. Liquids can

contain minerals that can corrode the electronic circuits.

Handle the scanner gently and carefully. Dropping it can damage cir-

cuit boards and cases and can cause the scanner to work improperly.

Use and store the scanner only in normal temperature environments.

Temperature extremes can shorten the life of electronic devices and

distort or melt plastic parts.

Keep the scanner away from dust and dirt, which can cause premature

wear of parts.

Wipe the scanner with a damp cloth occasionally to keep it looking new.

Do not use harsh chemicals, cleaning solvents, or strong detergents to

clean the scanner.

Modifying or tampering with the scanner’s internal components can cause a mal-

function and might invalidate the scanner’s warranty and void your FCC authoriza-

tion to operate it. If your scanner is not operating as it should, take it to your local

RadioShack store for assistance.

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20-430.fm Page 51 Wednesday, August 4, 1999 1:29 PM

SPECIFICATIONS

Frequency Coverage:

10 Meter Amateur Radio ............................. 29.000–29.6950 MHz (in 5 kHz steps)

VHF Lo ...................................................... 29.7000–49.9950 MHz (in 5 kHz steps)

6 Meter Amateur Radio ............................. 50.0000–54.0000 MHz (in 5 kHz steps)

Aircraft .............................................. 108.0000–136.9750 MHz (in 12.5 kHz steps)

Government ........................................... 137.0000–143.9950 MHz (in 5 kHz steps)

2 Meter Amateur Radio ........................... 144.000–147.9950 MHz (in 5 kHz steps)

VHF Hi ................................................... 148.0000–174.0000 MHz (in 5 kHz steps)

Amateur Radio/Government ............. 406.0000–419.9875 MHz (in 12.5 kHz steps)

70-cm Amateur Radio ....................... 420.0000–449.9875 MHz (in 12.5 kHz steps)

UHF Standard ................................... 450.0000–469.9875 MHz (in 12.5 kHz steps)

UHF “T” ............................................. 470.0000–512.0000 MHz (in 12.5 kHz steps)

Public Service ................................... 806.0000–823.9375 MHz (in 12.5 kHz steps)

Public Service/Trunking Repeater .... 851.0000–868.9875 MHz (in 12.5 kHz steps)

Public Service ................................... 896.1125–956.0000 MHz (in 12.5 kHz steps)

Channels of Operation ....................... Any 300 channels in any band combinations

(30 channels ¥ 10 banks), 50 search skip memories, and

20 service search skip memories

Sensitivity (S+N)/N=20 dB:

29–54 MHz .............................................................................................. 0.5 µV

108–136.975 MHz ................................................................................... 1.5 µV

137–174 MHz ......................................................................................... 0.5 µV

406–512 MHz ......................................................................................... 0.4 µV

806–956 MHz ......................................................................................... 1.0 µV

Search Speed:

Normal .............................................................................100 Steps/Sec (Max)

Hyper .......................................... 300 Steps/Sec (Max) (only 5 kHz step band)

Scan Speed ................................................................ 50 Channels/Sec. (Nominal)

Delay Time ............................................................................................. 2 Seconds

IF Frequencies:

1st IF .................................................. 29–174 MHz: 380.6050–380.7000 MHz

406–512 MHz: 380.6125–380.700 MHz

806–956 MHz: 380.7000–380.7875 MHz

2nd IF ................................................................................................10.85 MHz

3rd IF .................................................................................................... 450 kHz

Squelch Sensitivity:

Threshold ............................................................................... Less than 0.6

Tight ............................................................. VHF Lo, Hi, UHF (S + N)/N 25 dB

Aircraft (S + N)/N 15 dB

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20-430.fm Page 52 Wednesday, August 4, 1999 1:29 PM

Audio Power 1.1 W Maximum

Power Requirements:

AC Adapter 12 Volts DC

DC Adapter 12 Volts DC (such as

Cat. No. 270-1533)

Dimensions 2³/⁴× 8¹/¹⁶× 7¹¹/¹⁶Inches

(HWD)

(70 × 205 × 195 mm)

Weight 26.5 oz. (750 g)

Specifications are typical; individual

units might vary. Specifications are

subject to change and improvement

without notice.

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20-430.fm Page 53 Wednesday, August 4, 1999 1:29 PM

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20-430.fm Page 54 Wednesday, August 4, 1999 1:29 PM

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20-430.fm Page 55 Wednesday, August 4, 1999 1:29 PM

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20-430.fm Page 56 Wednesday, August 4, 1999 1:29 PM

Limited One-Year Warranty

This product is warranted by RadioShack against manufacturing defects in material and workmanship under nor-

mal use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized Ra-

dioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS

WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FIT-

NESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN

LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE

NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-

SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-

MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT

NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROP-

ERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-

AGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or

consequential damages, so the above limitations or exclusions may not apply to you.

In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as

proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law:

(a) correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the

same or similar design; or (c) refund the purchase price. All replaced parts and products, and products on which

a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in

the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of

the original warranty period. You will be charged for repair or replacement of the product made after the expira-

tion of the warranty period.

This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident,

misuse, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alter-

ation, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a Ra-

dioShack Authorized Service Facility; (c) consumables such as fuses or batteries; (d) cosmetic damage; (e)

transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment

or reinstallation.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

RadioShack Customer Relations, Dept. W,

100 Throckmorton St., Suite 600, Fort Worth, TX 76102

We Service What We Sell

3/97

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

UBZZ01273ZZ

10A7

Printed in the Philippines

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