Radio Shack Scanner Race Scanner User Guide

Cat. No. 20-513

Owner’s Manual

PRO-74 100-Channel

VHF/UHF/Air/800 MHz

Race Scanner

Please read before using this equipment.

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Hypersearch — lets you set the scanner to search at up to 300 steps

per second, to help you quickly find interesting broadcasts. (The nor-

mal search speed is 100 steps per second).

Two-Second Scan Delay — automatically delays scanning for about 2

seconds before moving to another channel, so you can hear more re-

plies.

Lock-Out Function — lets you set your scanner to skip over specified

channels.

Direct Frequency Search — lets you search all frequencies, starting

directly from a specified frequency.

Data Signal Skip — lets you set the scanner to skip non-modulated or

data signals during searches. This lets the scanner avoid non-voice

signals, making a search faster.

Search Skip — lets you set the scanner to skip up to 20 frequencies

you select during searches. This lets the scanner avoid unwanted sig-

nals.

Three Power Options — let you power the scanner using alkaline

or rechargeable nickel-cadmium batteries, external AC power using

an optional AC adapter/charger, or DC power using an optional DC

adapter.

Memory Backup — keeps the frequencies stored in memory for up to

3 days if the PRO-74 loses power.

Key Confirmation Tones — the scanner sounds a tone when you per-

form an operation correctly, and an error tone if you make an invalid

entry. You can turn the key confirmation tones on or off.

Display Backlight — makes the scanner easy to read in low-light situ-

ations.

Battery Low Alert — warns you when battery power gets low.

Battery Save — saves battery power when the scanner does not de-

tect any transmissions for more than 5 seconds while a channel is

manually selected or while you are programming the scanner.

Key Lock — lets you lock the scanner's keys to help prevent acciden-

tal changes to the scanner's programming.

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Resume Start — the scanner saves its settings when you turn the

power off. This returns you to the function you were using if you acci-

dentally turn the scanner off or the batteries are weak.

Triple-Conversion Circuitry — virtually eliminates any interference

from IF (intermediate frequency) images, so you hear only the selected

frequency.

Your scanner can receive these bands:

Frequency Range

(MHz)

Step

(kHz)

Transmission

29–29.7

29.7–50

10-Meter Ham Band

VHF Lo

50–54

6-Meter Ham Band

Aircraft/Air Shows

108–136.975

137–144

12.5

Auto Racing, Aircraft/Air

Shows, Government, Motion

Picture/Video Industry, Pro

Sports Teams, Radio/TV

Remote Broadcast

Pickup, Stadiums/Venues

144–148

148–174

406–450

2-Meter Ham Band

VHF Hi

12.5

70-cm Ham Band and

Federal Government

450–470

12.5

UHF Standard Band

UHF “T” Band

470–512

806–823.9375

Public Service “800” Band,

except cellular band

851–868.9375

12.5

UHF Hi

896.1125–956.000

We recommend you record your scanner’s serial number here. The

number is on the back panel.

Serial Number: ___________________________

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FCC NOTICE

Your scanner might cause radio or TV interference even when it is oper-

ating properly. To determine whether your scanner is causing the interfer-

ence, turn off your scanner. If the interference goes away, your scanner

is causing it. Try the following methods to eliminate the interference:

• Move your scanner away from the receiver

• Connect your scanner to an outlet that is on a different electrical

circuit from the receiver

• Contact your local RadioShack store for help

Note:

Mobile use of this scanner is unlawful or requires a permit in

some areas. Check the laws in your area.

SCANNING LEGALLY

Your scanner covers frequencies used by many different groups in-

cluding police and fire departments, ambulance services, government

agencies, private companies, amateur radio services, military opera-

tions, pager services, and wireline (telephone and telegraph) service

providers. It is legal to listen to almost every transmission your scanner

can receive. However, there are some transmissions you should never

intentionally listen to. These include:

• Telephone conversations (cellular, cordless, or other private

means of telephone signal transmission)

• Pager transmissions

• Any scrambled or encrypted transmissions

According to the Electronic Communications Privacy Act (ECPA), you

are subject to fines and possible imprisonment for intentionally listening

to, using, or divulging the contents of such a transmission unless you

have the consent of a party to the communication (unless such activity

is otherwise illegal).

This scanner has been designed to prevent reception of illegal trans-

missions. This is done to comply with the legal requirement that scan-

ners be manufactured so as to not be easily modifiable to pick up those

transmissions. Do not open your scanner's case to make any modifica-

tions that could allow it to pick up transmissions that it is not legal to lis-

ten to. Doing so could subject you to legal penalties. We encourage

responsible, legal scanner use.

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CONTENTS

Preparation ....................................................................................... 9

Power Sources ............................................................................ 9

Using Internal Batteries ........................................................ 9

Charging Nickel-Cadmium Batteries .................................. 11

Using Standard AC Power ................................................. 12

Using Vehicle Battery Power .............................................. 13

Connecting an Antenna ............................................................ 14

Connecting an Optional Antenna ....................................... 15

Connecting an Extension Speaker ............................................ 16

Connecting an Earphone/Headphones ..................................... 16

Listening Safely ................................................................. 17

Traffic Safety ...................................................................... 17

Attaching the Belt Clip ............................................................... 17

Understanding Your Scanner ........................................................ 18

A Look at the Keypad ................................................................ 18

A Look at the Display ................................................................ 20

Understanding Banks ................................................................ 22

Memory Banks ................................................................... 22

Service Banks .................................................................... 22

Operation ........................................................................................ 24

Turning On the Scanner and Setting Squelch ........................... 24

Storing Known Frequencies into Channels ............................... 25

Finding and Storing Active Frequencies ................................... 26

Searching the Service Banks ............................................. 26

Searching from a Selected Frequency ............................... 27

Storing Active Frequencies ................................................ 28

Search Skip Memory ................................................................. 28

Manually Selecting a Channel ................................................... 29

Scanning Channels ................................................................... 30

Deleting a Frequency from a Channel ...................................... 30

Listening to Weather Broadcasts .............................................. 31

Using the PRO-74 at the Races ..................................................... 32

Storing a Car Number and Frequency ...................................... 32

Adding Frequencies to a Car Number ............................... 33

Viewing Frequencies Associated with a Car Number ........ 34

Deleting a Frequency from a Car Number ......................... 34

Scanning by Car Number .......................................................... 34

Finding What Car Numbers are in What Channels ................... 35

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Special Features ............................................................................. 36

Turning Memory Banks On and Off ........................................... 36

Locking Out Channels ............................................................... 36

Priority ....................................................................................... 36

Using the Keylock ...................................................................... 38

Using the Display Backlight ....................................................... 38

Changing Search Speeds .......................................................... 38

Turning the Key Tone Off/On ..................................................... 39

Turning the Battery Save Function Off/On ................................. 39

Skipping Data Signals ............................................................... 40

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

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

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

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

VHF FM Marine Frequencies ............................................. 41

Birdie Frequencies ............................................................. 42

Guide to the Action Bands ......................................................... 43

Typical Band Usage ........................................................... 43

Primary Usage .................................................................... 44

Band Allocation ......................................................................... 44

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

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

Resetting the Scanner ............................................................... 50

Care and Maintenance .................................................................... 51

Specifications ................................................................................. 52

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PREPARATION

POWER SOURCES

You can power your scanner from any of three sources:

• Internal batteries (not supplied)

• Standard AC power using an optional AC adapter

• Vehicle battery power using an optional DC adapter

Using Internal Batteries

You can power your scanner using four AA batteries. For the longest

operation and best performance, we recommend you use alkaline bat-

teries (such as RadioShack Cat. No. 23-552).

You can also use four rechargeable nickel-cadmium batteries (Cat. No.

23-125). Before you use nickel-cadmium batteries, you must charge

them (see “Charging Nickel-Cadmium Batteries” on Page 10).

Follow these steps to install batteries.

1. While pushing up the tab above the battery compartment cover on

the back of the scanner, lift open the battery compartment cover to

remove it.

2. If you are installing alkaline batteries, use a pointed object such

ALKALINE

JACK

. Or, if you are installing nickel-cadmium bat-

NI-CD

as a pen to set

ment to

teries, set it to

inside the compart-

ALKALINE

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Warning: Never set ALKALINE JACK NI-CD to NI-CD if you are

installing non-rechargeable batteries. Non-rechargeable batteries

can get hot or explode if you try to recharge them.

3. Install two batteries in the compartment and two in the cover as

indicated by the polarity symbols (+ and –) marked inside those

locations.

Cautions:

•

Use only fresh batteries of the required size and recommended

type.

Always remove old or weak batteries. Batteries can leak chemi-

cals that destroy electronic circuits.

Do not mix old and new batteries, different types of batteries

(alkaline or rechargeable), or rechargeable batteries of different

capacities.

4. Replace the cover.

If BATT.Loflashes and the scanner beeps every 15 seconds, replace

(alkaline) or recharge (rechargeable nickel-cadmium) the batteries.

Caution: Always dispose of old batteries promptly and properly. Do not

bury or burn them.

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Charging Nickel-Cadmium Batteries

The scanner has a built-in circuit that lets you recharge nickel-cadmium

batteries while they are in the scanner. To charge the batteries, set AL-

KALINE

JACK

NI-CD to NI-CD, install the nickel-cadmium batteries

in the scanner, and connect an external AC or DC adapter to the scan-

ner’s POWER jack (see “Using Standard AC Power” on Page 11 or “Us-

ing Vehicle Battery Power” on Page 12).

Warning: Do not connect either adapter to the scanner if you have

non-rechargeable batteries (such as alkaline batteries) installed in the

scanner and ALKALINE

JACK

NI-CD is set to NI-CD, or you are un-

sure of the switch’s position. Non-rechargeable batteries will get hot

and can even explode if you try to recharge them.

Before you use nickel-cadmium batteries for the first time, charge them

at least 24 hours to bring them to a full charge.

Discharged batteries take about 10 to 18 hours to fully recharge. It

takes longer to fully charge them if you operate the scanner while you

recharge them.

Notes:

• Nickel-cadmium batteries last longer and deliver more power if you

occasionally let them fully discharge. To do this, simply use the

scanner until it begins beeping every 15 seconds and

BATT.Loflashes.

• To prevent damaging nickel-cadmium batteries, never charge

them in an area where the temperature is above 113°F or below

40°F.

Important: At the end of a rechargeable battery’s useful life, it must be

recycled or disposed of properly. Contact your local, county, or state

hazardous waste management authorities for information on recycling

or disposal programs in your area. Some options that might be avail-

able are: municipal curb-side collection, drop-off boxes at retailers such

as your local RadioShack store, recycling collection centers, and mail-

back programs.

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Using Standard AC Power

You can power the scanner from a standard AC outlet using an option-

al AC adapter (such as Cat. No. 273-1665).

Warning: Do not use an AC adapter’s polarized plug with an extension

cord, receptacle, or other outlet unless the blades can be fully inserted

to prevent blade exposure.

Cautions:

• The recommended AC adapter supplies 9 volts and delivers at

least 300 milliamps. It has a barrel plug with a center negative tip

that correctly fits the scanner’s POWER jack. Using an adapter that

does not meet these specifications could damage the scanner or

the adapter.

• To protect your scanner and AC adapter, always plug the adapter

into the scanner before you plug it into the AC outlet, and always

unplug the adapter from the AC outlet before you unplug it from

the scanner.

• If batteries are installed, make sure ALKALINE

JACK

NI-CD is

set to the correct position (see “Using Internal Batteries” on

Page 8).

1. Turn VOLUME counterclockwise until it clicks to make sure power

is turned off.

2. Plug the adapter’s 3.4 mm outside diameter/1.3 mm inside diame-

ter barrel plug into your scanner’s POWER jack.

3. Plug the other end of the adapter into a standard AC outlet.

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Using Vehicle Battery Power

To power the scanner from your vehicle's cigarette-lighter socket, you

need a DC adapter, such as Cat. No. 270-1560.

Cautions:

• The DC adapter must be capable of delivering 9 volts and at least

300 milliamps, its center tip must be set to negative, and its barrel

plug must correctly fit the scanner's POWER jack. The recom-

mended adapter meets these specifications. Using an adapter that

does not meet these specifications could damage the scanner or

the adapter.

• To protect your vehicle's electrical system, always plug the adapter

into the scanner before you plug it into your vehicle's cigarette-

lighter socket. Always unplug the adapter from the vehicle's ciga-

rette-lighter socket before you unplug it from the scanner.

• If batteries are installed, make sure ALKALINE

JACK

NI-CD is

set to the correct position (see “Using Internal Batteries” on

Page 8).

1. Turn VOLUME counterclockwise until it clicks to make sure power

is turned off.

2. Set the DC adapter’s voltage switch to 9V.

3. Connect the adapter’s 3.4 mm outer diameter/1.3 mm inner diam-

eter tip to the adapter’s cord, matching TIP to –.

4. Plug the adapter’s barrel plug into your scanner’s POWER jack.

5. Plug the other end of the adapter into your vehicle’s cigarette-

lighter socket.

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When you finish using the DC adapter, disconnect it from the cigarette-

lighter socket, then disconnect it from your scanner.

Note: If the scanner does not operate properly when you connect a DC

adapter, unplug the adapter from the cigarette-lighter socket and clean

the socket to remove ashes and other debris.

CONNECTING AN ANTENNA

The supplied stub antenna helps your scanner receive most strong

transmissions at events and makes the scanner easier to carry and

use. The supplied flexible antenna provides slightly better reception

and helps your scanner receive strong local signals. You can attach ei-

ther of the supplied antennas or an optional antenna to the scanner

(see “Connecting an Optional Antenna” on Page 14).

Follow these steps to attach either of the supplied antennas to the con-

nector on the top of your scanner.

1. Align the slots around the antenna’s connector with the tabs on the

scanner’s BNC connector.

2. Slide the antenna’s connector down over the scanner’s connector

and rotate the antenna connector’s outer ring clockwise until it

locks into place.

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Connecting an Optional Antenna

The scanner’s antenna jack makes it easy to use the scanner with a

variety of antennas. Instead of either of the supplied antennas, you can

attach a different one, such as an external mobile antenna or outdoor

base station antenna. Your local RadioShack store sells a variety of

antennas.

Always use 50-ohm coaxial cable, such as RG-58 or RG-8, to connect

an outdoor antenna. For lengths over 50 feet, use RG-8 low-loss di-

electric coaxial cable. If your antenna’s cable does not have a BNC

connector, use a BNC adapter, available at your local RadioShack

store.

Follow the installation instructions supplied with the antenna, route the

antenna cable to the scanner, then connect it to the antenna jack fol-

lowing the steps in “Connecting an Antenna” on Page 13.

Warning: Use extreme caution when installing or removing an outdoor

antenna. If the antenna starts to fall, let it go! It could contact overhead

power lines. If the antenna touches a power line, contact with the an-

tenna, mast, cable or guy wires can cause electrocution and death!

Call the power company to remove the antenna. Do not attempt to do

so yourself.

Cautions:

• Do not run the cable over sharp edges or moving parts.

• Do not run the cable next to power cables or other antenna cables.

• Do not run the cable through a vehicle’s engine compartment or

other areas that produce extreme heat.

• Follow all cautions and warnings included with the antenna.

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CONNECTING AN EXTENSION SPEAKER

In a noisy area, an extension speaker (such as Cat. No. 21-549), posi-

tioned in the right place, might provide more comfortable listening. Plug

the speaker cable’s ¹/⁸-inch mini-plug into your scanner’s

jack.

CONNECTING AN EARPHONE/

HEADPHONES

For private listening, you can plug an earphone or headphones with a

¹/⁸-inch mini-plug (such as Cat. No. 33-178 or 20-210) into the

jack

on top of your scanner. This automatically disconnects the internal

speaker.

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Listening Safely

To protect your hearing, follow these guidelines when you use an ear-

phone or headphones.

• Do not listen at extremely high volume levels. Extended high-

volume listening can lead to permanent hearing loss.

• Set the volume to the lowest setting before you begin listening.

After you begin listening, adjust the volume to a comfortable level.

• Once you set the volume, do not increase it. Over time, your ears

adapt to the volume level, so a volume level that does not cause

discomfort might still damage your hearing.

Traffic Safety

Do not use an earphone/headphones with your scanner when operat-

ing a motor vehicle or riding a bicycle in or near traffic. Doing so can

create a traffic hazard and could be illegal in some areas.

If you use an earphone/headphones with your scanner, be very careful.

Do not listen to a continuous broadcast. Even though some earphones/

headphones let you hear some outside sounds when listening at nor-

mal volume levels, they still can present a traffic hazard.

ATTACHING THE BELT CLIP

You can attach the supplied belt clip to make your scanner easier to

use when you are on the go. Use a Phillips screwdriver and the two

supplied screws to attach the belt clip to the scanner. Then slide the

belt clip over your belt or waistband.

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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 find the communications you

want to receive, then set the scanner to scan them.

frequency

is the tuning location of a station (expressed in kHz or

MHz). To find active frequencies, you can use the

function.

memory banks

You can also search the

, which are preset groups of

frequencies categorized by type of service.

When you find a frequency, you can store it into a programmable memory

channel

, which is grouped with your other channels in a

location called a

memory bank. You can then

scan

the memory banks to see if there is ac-

tivity on the frequencies stored there. Each time the scanner finds an ac-

tive frequency, it stays on that channel until the transmission ends.

Remember, you search frequencies and scan channels.

A LOOK AT THE KEYPAD

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

should help you understand each key’s function.

PROG

MAN

BAND

RACE

SCAN

1-10

21-30

11-20

HOLD

D A TA

31-40

41-50 51-60

PRIORITY

H/S

L-OUT

S/S

61-70

71-80 81-90

DEL

91-100

KEYLOCK CLEAR

W X

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RACE — lets you store car numbers and frequencies in the scanner’s

channels, add and delete frequencies from car numbers, display car

numbers, and listen to the channel where a car number is stored.

MAN — stops scanning and lets you directly enter a channel number or

frequency.

PROG — stores frequencies into channels.

BAND — lets you search service banks.

SCAN — scans through stored channels.

HOLD — holds a frequency search.

DATA

— turns on or off the data signal skip feature, and lets you se-

quentially recall channels where car numbers and frequencies are

stored during manual operation.

PRIORITY/H/S — sets and turns on and off priority for a particular chan-

nel. Also turns Hypersearch on and off.

L-OUT/S/S — lets you lock out a selected channel and skips a specified

frequency during a service bank, direct, or weather search.

t and s — enters the search direction (down or up).

DEL — deletes the frequencies and car numbers stored in the memory.

KEYLOCK/

— locks the keypad to prevent accidental program

changes. Also turns on the display light for 15 seconds.

Number Keys — each key is marked with a single digit, and has a

range of numbers printed above it. The single digits are used to enter a

channel or frequency. The range of numbers (31–40, for example) indi-

cates the channels that make up a memory bank.

CLEAR/ — erases an incorrect entry or an error, and enters a decimal

•

point.

WX/E — selects a weather channel, and enters the frequency when you

store a frequency into a channel.

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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.

BANK

2 3 4 5 6 7

9 10 BATT.Lo K/L

HOLD

RACE PRI DATA

W X HYPER

NO.

MRN

SCAN MAN PGM L/O

MHz

BANK— appears with numbers (1–10) to show which memory banks

are turned on for scanning.

Service bank indicators — appear when you select the scanner’s ser-

vice banks (see “Service Banks” on Page 21).

BATT.Lo— flashes when the batteries are low.

K/L— appears when you lock the keypad.

RACE— appears when you store car numbers and frequencies in the

scanner’s channels, add and delete frequencies from car numbers, dis-

play car numbers, and move to the channel where a car number is

stored.

PRI— appears when you set the scanner to scan the priority channels

every 2 seconds.

— appears when you turn on the data skip function.

DATA

HOLD— appears during a search hold.

WX — appears when you search the preset frequencies in the weather

band.

HYPER — appears when you are using Hypersearch during service

bank and direct search. However, HYPERdisappears when the scan-

ner searches any frequency bands other than the 5 kHz step bands.

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No.— appears when a car number is displayed

— appears with CHwhen you select the scanner’s marine service

bank (see “Service Banks” on Page 21).

MRN

P — appears when you listen to a priority channel.

CH— digits that precede this indicator show which of the 100 channels

the scanner is tuned to.

MHz — digits that precede this indicator show which frequency the

scanner is tuned to. 5appears directly above the MHzindicator when

the displayed frequency is an odd multiple of 12.5 kHz (for frequencies

between 406–956 MHz, or 108–136.975 MHz).

SCAN— appears when you scan channels.

MAN— appears when you manually select a channel.

PGM— appears while you store (program) frequencies into the scan-

ner’s channels.

L/O— appears when you manually select a locked channel or a skip

frequency.

— appears when the battery save function is active.

t and s — indicate the search direction.

SEARCH — appears during a service bank, direct, or weather search.

-d-— appears during a direct search.

Error— appears when you make an invalid entry.

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UNDERSTANDING BANKS

Memory Banks

To make it easier to identify and select the channels you want to listen

to, the PRO-74’s channels are divided into 10 banks of 10 channels

each. Use each memory bank to group frequencies, such as the police

department, fire department, ambulance services, or aircraft (see

“Guide to the Action Bands” on Page 42). For example, the police de-

partment 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 program the fire department frequencies start-

ing with Channel 11 (the first channel in bank 2).

Service Banks

You can search for auto racing, marine, VHF, aircraft, military, amateur

radio, government, UHF, TV, and 800 MHz 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.

This table shows each service bank’s name, what it is used for, and its

frequencies.

Name

Typical Usage

Frequency Range

(in MHz)

Auto Racing

150.9950–151.9550

152.8700–153.7250

154.4900–154.6250

460.0000–470.0000

CAr

Marine

Listed in “VHF FM

Marine Frequencies”

on Page 40.

MRN

VHF Lo

Air

29.0000–54.0000

108.0000–136.9750

137.0000–144.0000

AIr

MIL

Military

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Name

Typical Usage

Frequency Range

(in MHz)

2-Meter Ham

144.0000–148.0000

148.0000–174.0000

406.0000–420.0000

420.0000–450.0000

450.0000–470.0000

470.0000–512.0000

HAM

VHF Hi

Federal Government

FEd

HAM

UHF

70-Centimeter Ham

UHF

800 MHz

806.0000–823.9375

851.0000–868.9375

896.1125–956.0000

800

Your scanner also has 7 preprogrammed weather frequencies.

For example, if you wanted to search for transmissions between a driver

and that driver’s pit crew at an auto race, you could search only the ser-

vice bank where you are most likely to hear the transmissions (CAr).

Notes:

•

The frequencies in the scanner’s service banks are preset. You

cannot change them.

•

“Band Allocation” on Page 43 lists frequency ranges and the

broadcasters you are likely to hear on those frequencies.

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OPERATION

TURNING ON THE SCANNER AND

SETTING SQUELCH

Note:

Make sure an antenna is connected to the scanner before you

turn it on.

SQUELCH

1. Turn

fully counterclockwise.

PRO-74

V O L U M E

S Q U E L C H

OFF

VOLUME

2. Turn

clockwise until it clicks and you hear a hissing

sound.

PRO-74

VO L U M E

SQ U EL C H

OFF

SQUELCH

3. Turn

clockwise, then leave it set to a point just after the

hissing sound stops.

Notes:

• If you have not stored frequencies into any channels, the scanner

does not scan.

• If the scanner picks up unwanted, partial, or very weak transmis-

SQUELCH

sions, turn

ity to these signals. If you want to listen to a weak or distant

SQUELCH

clockwise to decrease the scanner's sensitiv-

station, turn

SQUELCH

counterclockwise.

is adjusted so you always hear a hissing sound, the

• If

scanner does not scan properly.

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STORING KNOWN FREQUENCIES

INTO CHANNELS

Good references for active frequencies are the RadioShack “Beyond

Police Call,” “Aeronautical Frequency Directory,” and “Maritime Fre-

quency Directory.” We update these directories every year, so be sure

to get a current copy.

Follow these steps to store a frequency into a channel.

1. Press MAN, enter the channel number where you want to store a

frequency, then press PROG. The channel number appears.

•

2. Use the number keys and CLEAR/ to enter the frequency (includ-

ing the decimal point) you want to store.

PROG

MA N

BAND

RACE

SCAN

1-10

11-20 21-30

HOLD

DA TA

31-40

41-50 51-60

PRIORITY

H/S

L-O UT

S/S

61-70

71-80 81-90

DEL

KEYLOCK CLEAR

91-100

W X

3. Press E to store the frequency into the channel.

PROG

MA N

BAND

RACE

SCAN

1-10

11-20 21-30

HOLD

DA TA

31-40

41-50 51-60

PRIORITY

H/S

L-O UT

S/S

61-70

71-80 81-90

DEL

KEYLOCK CLEAR

91-100

W X

Notes:

•

If you entered an inappropriate frequency in Step 2, Error

appears and the scanner beeps three times. Simply repeat

Steps 2 and 3.

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•

Your scanner automatically rounds the entered frequency to the

nearest valid frequency. For example, if you enter a frequency

of 151.473, your scanner accepts it as 151.475.

Your scanner automatically delays scanning for 2 seconds after

a transmission ends before it proceeds to the next channel.

4. To program the next channel in sequence, press PROG and repeat

Steps 2 and 3.

Note: If you previously stored a car number in a channel (see

“Storing a Car Number and Frequency” on Page 31), the scanner

clears the number when you store a new frequency into a channel.

FINDING AND STORING ACTIVE

FREQUENCIES

Searching the Service Banks

Your scanner contains groups of preset frequencies called service

banks. Each service bank is associated with a specific activity (see

“Service Banks” on Page 21). You can search for auto racing, marine,

VHF, aircraft, military, amateur radio, government, UHF, TV, and 800

MHz transmissions even if you do not know the specific frequencies

that are used in your area.

1. Press BAND. A service bank’s name, SEARCH, and the frequency

search range appear.

Note: The frequency search range does not appear if the CARor

CHservice bank is selected.

MRN

2. To select a different service bank, repeatedly press s or t until the

desired bank name appears.

3. Press BAND. The scanner starts searching the frequencies within

that service bank.

Note: To change the search direction, press s or t.

4. When the scanner stops on a transmission, quickly press either:

•

t or s to continue searching

HOLD to stop searching so you can listen to the transmission.

HOLDappears.

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To release hold and continue searching, press HOLD or hold

down t or s for more than 1 second.

Notes:

•

To step through the frequencies while HOLDis displayed, press

t or s.

If you tune to a search skip frequency, L/O appears (see

“Search Skip Memory” on Page 27).

To store a frequency into a channel while the frequency is

paused or held, see “Storing Active Frequencies” on Page 27.

Searching from a Selected Frequency

If you do not have a reference to frequencies in your area, you can

search for transmissions starting with a frequency you select.

1. Press MAN.

2. To start the search from a frequency, enter it using the number

•

keys and CLEAR/ . Or, to start the search from a frequency stored

in a channel, enter the channel number, then press MAN.

3. Press t to search downward or s to search upward from the

selected frequency. -d-, SEARCH, and t or s appear.

PROG

M A N

D ATA

BAND

RACE

SCAN

1-10

21-30

11-20

HOLD

31-40

41- 50 51-60

PRIORITY L-O UT

MHz

H/S

S/S

61-70

71-80 81-90

DEL

91-100

K EYL OC K C L EA R

W X

4. When the scanner stops on a transmission, quickly press either:

•

t or s to continue searching

HOLD to stop searching so you can listen to the transmission.

HOLDappears.

To release hold and continue searching, press HOLD or hold

down t or s for more than 1 second.

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Notes:

•

To step through the frequencies while HOLDis displayed, press

t or s.

If you tune to a search skip frequency, L/O appears (see

“Search Skip Memory” on Page 27).

To store a frequency into a channel while the frequency is

paused or held, see “Storing Active Frequencies.”

Storing Active Frequencies

To store an active frequency into a channel, press PROG while the fre-

quency is paused or held. The lowest available channel number flash-

es.

• To enter the frequency into that channel, press E.

• To change the channel, enter the desired channel number, then

press PROG.

The frequency currently stored in that channel (if any) appears for

about 2 seconds, then the new frequency appears. Press E to store the

new frequency.

Notes:

• If you previously stored a car number and frequency in a channel

(see “Storing a Car Number and Frequency” on Page 31), the

scanner clears the number and frequency when you store a new

frequency into that channel.

• If there are no empty channels, the channel number changes to 1

and FULLappears. To clear FULLfrom the display, press CLEAR.

SEARCH SKIP MEMORY

You can skip up to 20 specified frequencies during a service bank, di-

rect, or weather search. This lets you avoid unwanted frequencies or

ones you have already stored in a channel. You can specify all 20 fre-

quencies to be skipped during one type of search (direct search, for ex-

ample), or you can divide the frequencies you skip among two or all

three search types.

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To skip a frequency, press S/S when the

scanner stops on the frequency during a

search. The scanner stores the frequen-

cy in memory and automatically resumes

the search.

PROG

MA N

BAND

RACE

HOLD

SCAN

1-10

11-20 21-30

DA TA

31-40

41-50 51-60

PRIORITY

H/S

L-O UT

S/S

61-70

71-80 81-90

DEL

KEYLOCK CLEAR

91-100

W X

To clear a single frequency from search

skip memory so the scanner can stop on

it during a search, follow these steps.

1. Press HOLD to hold the search.

2. Press ⁾or ( to select the frequency. L/O appears.

3. Press S/S. L/O disappears from the display.

To clear all the search skip frequencies at once, during a search, press

HOLD, then hold down S/S until the scanner beeps twice (about 3 sec-

onds).

Notes:

• If you skip all the frequencies in the weather band, the scanner will

not start searching. In this case, the scanner sounds three beeps.

• If you program more than 20 frequencies to skip, each new fre-

quency replaces one you already stored, starting from the first fre-

quency you stored.

• You can manually select a skipped frequency. L/O appears on the

display when you select a skipped frequency.

MANUALLY SELECTING A CHANNEL

You can continuously monitor a single channel without scanning. This

is useful if you hear an emergency broadcast on a channel and do not

want to miss any details — even though there might be periods of si-

lence — or if you want to monitor a specific channel.

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Note: You cannot use this procedure to select a car number. See

“Viewing Frequencies Associated with a Car Number” on Page 33 to

select a car number.

To manually select a channel, press MAN, enter the channel number,

then press MAN again. Or, if your scanner is scanning and stops at the

desired channel, press MAN once.

Pressing MAN additional times causes your scanner to step through the

channels. To resume scanning, press SCAN.

SCANNING CHANNELS

To begin scanning channels, press SCAN. The scanner scans through

all non-locked channels in all banks that are turned on, from the lowest

to the highest channel number. (See “Turning Memory Banks On and

Off” and “Locking Out Channels” on Page 35).

When the scanner finds a transmission, it stops on it. Two seconds af-

ter the transmission ends, the scanner resumes scanning.

Note: If SQUELCH is adjusted so you always hear a hissing sound, the

scanner does not scan properly.

DELETING A FREQUENCY FROM A

CHANNEL

1. Press PROG.

2. Enter the channel number that contains the frequency you want to

delete, then press PROG.

3. Press DEL. The frequency is deleted.

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LISTENING TO WEATHER BROADCASTS

The FCC (Federal Communications Commission) has allocated fre-

quencies for use by the National Oceanic and Atmospheric Administra-

tion (NOAA). Regulatory agencies in other countries have also

allocated frequencies for use by their weather reporting authorities.

Your local weather reporting authority broadcasts your local forecast

and regional weather information on one or more of these frequencies.

If your scanner is within a weather reporting authority’s broadcast

range, you can scan these frequencies.

Your scanner has 7 weather service frequencies preprogrammed. See

“National Weather Frequencies” on Page 40 for a list of these frequen-

cies.

To hear your local forecast and regional weather information, simply

press WX. Your scanner scans through the weather frequencies. Your

scanner should stop within a few seconds on your local weather broad-

cast.

To manually tune to a specific preprogrammed weather frequency,

press WX, then HOLD. Repeatedly press s or t to move forward or

backward through the frequencies.

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USING THE PRO-74 AT THE RACES

The PRO-74 is specially designed to help you listen to communications

at auto races. Drivers and their pit crews and corner watchers, pace

car drivers, security officers, emergency personnel, track officials, and

representatives of governing organizations such as NASCAR, SCCA,

and NHRA all use radios to communicate with each other during a

race. You might also hear transmissions from the news media and re-

porters, local police departments, and paramedics and doctors at the

local hospital. You can even listen to broadcasts by parking lot employ-

ees at the track, so you can find the best possible parking place when

you arrive.

The scanner’s quick-track memory lets you store a car number and fre-

quency in each of the scanner’s channels, associate one or more fre-

quencies stored in channels with a car number, and recall any

frequencies associated with that car number by entering the number.

You can store one car number by itself, one car number and frequency,

or one frequency by itself in each channel (for up to 100 car numbers

and frequencies).

For example, if you want to listen to communications between the driv-

er of car number 24 and that driver’s pit crew, find all the frequencies

used by the driver’s team by using the steps in “Searching the Service

Banks” on Page 25, using the supplied frequency guide, “Searching

from a Selected Frequency” on Page 26, or using frequencies you al-

ready know, then store a car number and the frequencies associated

with that car number in the scanner’s channels. Then, you can display

the car number as you scan those frequencies by using the information

in “Scanning by Car Number” on Page 33.

STORING A CAR NUMBER AND FREQUENCY

You can store a car number and frequency in each of the scanner’s

channels, and you can recall any frequencies associated with the car

number by entering the number. You can store one car number in each

channel (for up to 100 car numbers).

Note:

After you store a car number and a frequency, you can store ad-

ditional frequencies then associate those frequencies with the same

car number. See “Adding Frequencies to a Car Number” on Page 32.

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Follow these steps to store a car number and frequency.

1. Press MAN then RACE. RACEand Car No?---appears.

2. Enter the car number. If the number is one or two digits, enter the

number, then press RACE. If the number is three digits, enter the

number only. The car number and --- ---appear.

Notes:

•

If you add one or more leading zeros to a single-digit car num-

ber, your scanner recognizes them as different car numbers.

For example, you can enter 5 for one car number, 05 for

another car number, and 005for another car number.

•

To clear the display, press CLEAR/ before you press RACE.

3. Enter the frequency (including the decimal point) you want to

associate with the car number by using the number keys and

•

CLEAR/ .

4. Press E to store the frequency. The car number and frequency are

stored in the first available channel.

Adding Frequencies to a Car Number

Follow these steps to select a car number then associate additional fre-

quencies with that car number.

1. Press MAN then RACE. RACEand Car No?---appears.

2. Enter the car number. If the number is one or two digits, enter the

number, then press RACE. If the number is three digits, just enter

the number. The car number and the first frequency associated

with that number appears.

3. Repeatedly press s or t until ---.---appears.

4. Enter the frequency (including the decimal point) you want to

associate with the displayed car number by using the number keys

•

and CLEAR/ .

5. Press E to store the frequency. The frequency is associated with

the car number you entered.

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Viewing Frequencies Associated with a Car Number

After you store a car number and associate frequencies with that num-

ber, you can view all frequencies associated with the number.

1. Press MAN then RACE. RACEand Car No?---appears.

2. Enter the car number. If the number is one or two digits, enter the

number, then press RACE. If the number is three digits, just enter

the number. One of the frequencies associated with the car num-

ber appears.

3. Repeatedly press s or t to view each of the frequencies associated

with the car number you entered. When you have viewed all the

frequencies, the display shows ---.---.

Deleting a Frequency from a Car Number

1. Recall the car number.

2. Repeatedly press s or t until the frequency you want to delete

appears.

3. Hold down DEL for about 1 second. The scanner beeps and the

frequency disappears.

SCANNING BY CAR NUMBER

Once you store car numbers into channels, you can set the scanner so

it displays the car numbers you assigned to the channels as it scans

them.

To scan by car number, repeatedly press RACE until BANKand RACE

appear, then press SCAN. As the scanner scans channels, the car

numbers you stored appear in the order you stored them into their

channels, from the lowest to the highest channel.

Notes:

• If no car number is assigned to a channel, ---appears instead of

the car number.

• If SQUELCH is adjusted so you always hear a hissing sound, the

scanner does not scan properly.

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FINDING WHAT CAR NUMBERS ARE IN

WHAT CHANNELS

If you are listening to a channel and want to know what car number you

are hearing, simply press RACE twice. If a car number has been asso-

ciated with this frequency, the car number and frequency appear.

Press RACE twice to return to normal channel listening.

To see what car numbers are stored, press MAN then RACE, then re-

DATA

peatedly press

to highest) show.

. The car numbers (from lowest channel number

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SPECIAL FEATURES

TURNING MEMORY BANKS ON AND OFF

You can turn each memory bank on and off. When you turn off a bank,

the scanner does not scan any of the 10 channels in that bank.

While scanning, press the number key that corresponds to the bank

you want to turn on or off. When BANKappears, the scanner scans all

the channels within the displayed banks that are not locked out (see

“Locking Out Channels”).

Notes:

• You can manually select any channel within a bank, even if that

bank is turned off.

• You cannot turn off all banks. One bank must always be active.

LOCKING OUT CHANNELS

You can increase the scanning speed by locking out channels that

have a continuous transmission, such as a weather channel. To lock

L-OUT

out a channel, manually select the channel, then press

appears. You can still manually select locked out channels.

so L/O

To remove the lockout from a channel, manually select the channel

L-OUT

and press

so L/Odisappears from the display. Or, to unlock all

MAN

channels or frequencies in the banks that are turned on, press

L-OUT

stop scanning, then hold down

until the scanner beeps twice.

Note:

and then lock

If you select a weather frequency by pressing

out that frequency, the scanner stores the frequency in its search skip

memory. Follow the steps under “Search Skip Memory” on Page 27 to

remove the lockout from the weather frequency.

PRIORITY

The priority feature lets you scan through channels and still not miss

important or interesting calls on specific channels. You can program

one channel in each bank as a priority channel (for up to a total of 10

priority channels). If the priority feature is turned on, as the scanner

scans a bank, the scanner checks that bank’s priority channel every 2

seconds for activity.

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The scanner automatically designates each bank's first channel as its

priority channel. Follow these steps to select a different channel as the

priority channel.

1. Press PROG.

2. Enter the channel number you want to select as the priority chan-

nel, then press PRIORITY.

appears to the right of the channel

number.

PROG

MAN

B AN D

RACE

SCAN

1-10

11-20 21-30

HOLD

D A TA

BANK

31-40

41-50 51-60

L-OUT

S/S

PRIORITY

H/S

61-70

71-80 81-90

PG M

MHz

DEL

91-100

CLEAR

KEYLOCK

3. Repeat Steps 1–2 for the channel in each bank you want to pro-

gram as a priority channel.

To confirm all priority channel numbers, press PROG, then repeatedly

press PRIORITY to step through the priority channels.

To turn on the priority feature, press PRIORITY during scanning. PRI

appears.

To turn off the priority feature, press PRIORITY again. PRIdisappears.

Notes:

• The priority feature must be turned off to use the data skip feature

(see “Skipping Data Signals” on Page 39).

•_BAY_No_Ku ₁can lock out priority

channels. If you lock out all

priority channels,

LOCOUt

C H

and_{MA N}appear when you turn

L/O

on the priority feature.

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USING THE KEYLOCK

Once you set up and store channels into your scanner, you can protect

it from accidental changes by turning on the keylock feature. When

locked, the only controls that operate are SCAN, MAN, KEYLOCK/

VOLUME, and SQUELCH.

To turn on the keylock, hold down KEYLOCK until K/Lappears. To turn

it off, hold down KEYLOCK until K/Ldisappears.

PR OG

MA N

BAND

RACE

SCAN

BANK

K/L

1-10

21-30

11-20

HOLD

D ATA

C H

MHz

31-40

41-50 51-60

PRIORITY L-O UT

PG M

H/S

S/S

61-70

71- 80 81- 90

DEL

91-100

KEYLOCK CLEAR

W X

USING THE DISPLAY BACKLIGHT

You can turn on the display backlight for easy viewing at night. Press

to turn it on for 15 seconds. To turn it off before 15 seconds

elapse, press the button again.

CHANGING SEARCH SPEEDS

The PRO-74 has two search speeds.

Normal Search

Hypersearch

100 steps/second

300 steps/second

To switch between normal and Hypersearch speeds, during a service

bank or direct search, press H/S. HYPERappears during Hypersearch.

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Notes:

• You can use Hypersearch only in the 5 kHz step bands (29–54

MHz and 137–174 MHz.

• Since the marine service bank is not in one of the 5 kHz step

bands, you cannot use Hypersearch in the marine service bank.

TURNING THE KEY TONE OFF/ON

Your scanner comes set so each time you press a key, you hear a

tone. To turn off the key tone, follow these steps.

1. Turn off the scanner.

2. While holding down L-OUT/S/S, turn on the scanner. OFF bEEP

appears for about 3 seconds.

PROG

MA N

BAND

RACE

SCAN

1-10

21-30

11-20

HOLD

A TA

31-40

41-50 51-60

PRIORITY L-O UT

H/S

S/S

61-70

71- 80 81-90

DEL

91-100

K EYL OC K C L EA R

W X

To turn the key tone back on, repeat these steps so onbEEPappears.

TURNING THE BATTERY SAVE FUNCTION

OFF/ON

To save battery power when a channel is manually selected or when

you are programming the scanner, the scanner has a battery save

function which automatically sets the scanner to a standby mode if no

button is pressed for 5 seconds when no signal is detected, and sets

the scanner back to full power mode when it detects a button press or

receives a signal. The battery save function is set to on at the factory,

but you can change it.

appears when the function is active.

Note: If priority is turned on, the battery save function does not work

even if a channel is manually selected.

To turn the battery save function off or back on, turn off the scanner,

then hold down PRIORITY/H/S and turn on the scanner. OFFSAVEor

onSAVEbriefly appears.

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SKIPPING DATA SIGNALS

You can set the scanner so it skips nonmodulated or data signals (such

as modem transmissions) during a search or scan.

Note:

Since data signals are not generally found in the air band, this

feature does not work in the air band.

DATA

To turn on the data skip feature, press

appears. To turn

DATA

disappears.

DATA

off the feature, press

again.

DATA

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A GENERAL GUIDE TO SCANNING

Reception of the frequencies covered by your scanner is mainly “line-

of-sight.” That means you usually cannot hear stations that are beyond

the horizon.

GUIDE TO FREQUENCIES

National Weather Frequencies

162.400

162.425

162.450

162.475

162.500

162.525

162.550

Canadian Weather Frequencies

161.650

161.775

163.275

Note:

The Canadian frequencies are not preprogrammed in this scan-

ner, but you can manually search or store them.

VHF FM Marine Frequencies

Chan-

nel

No.

Frequency

Chan-

nel

No.

Frequency

Ship

Shore

Ship

Shore

156.3000

156.3500

156.4000

156.4500

156.3000

156.3500

156.4000

156.4500

156.5000

156.5500

156.6000

156.6500

156.7000

156.7500

156.8000

156.8500

64 156.2550

65 156.2750

66 156.3250

67 156.3750

68 156.4250

69 156.4750

70 156.5250

71 156.5750

72 156.6250

73 156.6750

74 156.7250

77 156.8750

156.2550

156.2750

156.3250

156.3750

156.4250

156.4750

156.5250

156.5750

156.6250

156.6750

156.7250

156.8750

10 156.5000

11 156.5500

12 156.6000

13 156.6500

14 156.7000

15 156.7500

16 156.8000

17 156.8500

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Chan-

nel

No.

Frequency

Chan-

nel

No.

Frequency

Ship

Shore

Ship

Shore

Chan-

nel

No.

Frequency

Chan-

nel

No.

Frequency

Ship

Shore

Ship

Shore

19 156.9500

20 157.0000

21 157.0500

22 157.1000

23 157.1500

24 157.2000

25 157.2500

26 157.3000

27 157.3500

28 157.4000

156.9500

161.6000

157.0500

157.1000

157.1500

161.8000

161.8500

161.9000

161.9500

162.0000

79 156.9750

80 157.0250

81 157.0750

82 157.1250

83 157.1750

84 157.2250

85 157.2750

86 157.3250

87 157.3750

88 157.4250

156.9750

157.0250

157.0750

157.1250

157.1750

161.8250

161.8750

161.9250

161.9750

157.4250

Birdie Frequencies

Every scanner has birdie frequencies. Birdies are signals created in-

side the scanner’s receiver. These operating frequencies might inter-

fere with broadcasts on the same frequencies. If you program one of

these frequencies, you hear only noise on that frequency. If the inter-

ference is not severe, you might be able to turn SQUELCH clockwise to

cut out the birdie. The birdie frequencies (in MHz) found in this scanner

are:

31.2000

171.2500

489.1875

489.5000

932.8250

41.6000

410.0000

489.2500

813.4000

938.3750

52.6000

430.0000

489.3500

814.0000

940.9000

116.0375

480.4750

489.4500

932.6000

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To find the birdies in your particular scanner, begin by disconnecting the

antenna and moving it away from the scanner. Make sure that no other

nearby radios or TVs are turned on near the scanner. Use the search

function to search every frequency range from its lowest to the highest

frequency. Occasionally, the searching will stop as if it had found a sig-

nal, often without any sound. That is a birdie. Make a list of all the birdies

in your scanner for future reference.

GUIDE TO THE ACTION BANDS

Typical Band Usage

VHF Band

Low Range

29.00–50.00 MHz

50.00–54.00 MHz

137.00–144.00 MHz

144.00–148.00 MHz

148.00–174.00 MHz

6-Meter Amateur

U.S. Government

2-Meter Amateur

High Range

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

33-Centimeter Amateur

Private Trunked

General Trunked

Fixed Services

Studio-to-Transmitter Broadcast Links

Private Fixed Services, Paging

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

952.00–956.00 MHz

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Primary Usage

As a general rule, most of the radio activity is concentrated on the fol-

lowing frequencies:

VHF Band

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

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

Mobile Units

Repeater Units

Control Stations

Note: Remote control stations and mobile units operate at 5 MHz high-

er than their associated base stations and relay repeater units.

BAND ALLOCATION

To help decide which frequency ranges to scan, use the following list-

ing of the typical services that use the frequencies your scanner re-

ceives. These frequencies are subject to change, and might vary from

area to area. For a more complete listing, refer to the book “Beyond

Police Call,” available at your local RadioShack store.

Abbreviations

Services

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

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

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

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

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

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

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

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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

VERY HIGH FREQUENCY (VHF)

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

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

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

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

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

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

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

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

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

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

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

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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

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

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

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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)

U. S. Government Band (406–420 MHz)

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

70-cm 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

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.

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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

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) x 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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TROUBLESHOOTING

If you have problems, here are some suggestions that might help. If

none do, take your scanner to your local RadioShack store for as-

sistance.

PROBLEM

POSSIBLE CAUSE

REMEDY

Keys do not work or

display changes at

random.

Undetermined error.

Reset the scanner (see

“Resetting the Scanner”

on Page 49).

Scanner is on but

will not scan.

SQUELCH is not

correctly adjusted.

Adjust SQUELCH clock-

wise.

Only one channel or

no channels are

stored.

Store frequencies into

more than one channel.

Scanner is totally

inoperative.

No power.

Check the batteries or

make sure the scanner

is plugged into a working

AC or DC outlet.

Be sure the adapter’s

barrel plug is fully

plugged into the

POWER jack.

Recharge the recharge-

able batteries or replace

the non-rechargeable

batteries.

The scanner’s dis-

play dims or the

scanner sounds a

Batteries are not

correctly installed.

Make sure the batteries

are installed with the

proper polarity (+ to +

tone every 15 30

–

and to ).

–

seconds.

Batteries are low.

Recharge the recharge-

able batteries or replace

the non-rechargeable

batteries.

Keypad does not

work.

The keylock func-

tion is activated.

To turn off the keylock,

press KEYLOCK until

disappears.

K/L

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PROBLEM

POSSIBLE CAUSE

REMEDY

The batteries are

Recharge rechargeable

batteries, or replace non-

rechargeable batteries.

BATT.Lo

appears.

weak.

PROBLEM

POSSIBLE CAUSE

REMEDY

Poor or no recep-

tion.

Batteries are weak

or dead.

Check the batteries, or

make sure the scanner

is plugged into a working

AC or DC outlet.

appears.

Frequency entered

incorrectly.

Re-enter the frequency

correctly, including the

decimal point.

Error

While scanning, the

scanner locks on

frequencies that

have an unclear

transmission.

Stored frequencies

are the same as

“birdie” frequencies.

Avoid storing frequen-

cies listed under “Birdie

Frequencies” on

Page 41, or only listen to

them manually.

RESETTING THE SCANNER

If the scanner’s display locks up or does not work properly after you

connect power, you might need to reset the scanner.

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

the scanner (such as frequencies and car numbers). Before you reset

the scanner, try turning it off and on to see if it begins working properly.

Reset the scanner only when you are sure it is not working properly.

1. Turn off the scanner.

2. While you hold down the 2 and 9 keys, turn on the scanner.

If you still have problems after resetting the scanner, take it to your lo-

cal RadioShack store.

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CARE AND MAINTENANCE

Your RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz Race

Scanner is an example of superior design and craftsmanship. The fol-

lowing suggestions will help you care for your scanner so you can en-

joy it for years.

Keep the scanner dry. If it gets wet, wipe it dry immedi-

ately. Liquids can contain minerals that can corrode the

electronic circuits.

Use only batteries of the required size and recommended

type. Always remove old and weak batteries. They can

leak chemicals that destroy electronic circuits.

Handle the scanner gently and carefully. Dropping it can

damage circuit 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, damage batteries, 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 sol-

vents, or strong detergents to clean the scanner.

Modifying or tampering with your scanner’s internal components can

cause a malfunction, invalidate the scanner’s warranty, and void your

FCC authorization 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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SPECIFICATIONS

Frequency Coverage ............................... 29–54 MHz (in 5 kHz steps)

108–136.975 MHz (in 12.5 kHz steps)

137–174 MHz (in 5 kHz steps)

406–512 MHz (in 12.5 kHz steps)

806.0000–823.9375 MHz (in 12.5 kHz steps)

851.0000–868.9375 MHz (in 12.5 kHz steps)

896.1125–956.0000 MHz (in 12.5 kHz steps)

Channels ........................................................................................ 100

Sensitivity: (FM: 20 dB S/N at 3 kHz deviation)

(AM: 20 dB S/N at 60% modulation)

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

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

137–174 MHz ..................................................................... 0.4 µV

406–512 MHz ..................................................................... 0.3 µV

806–956 MHz ..................................................................... 0.8 µV

Scan Speed ............................................................. 50 Channels/Sec.

Search Speed .............................................................. 100 Steps/Sec.

Priority Sampling .................................................................. 2 Seconds

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

IF Frequencies ........................... 380.7 MHz, 10.85 MHz, and 450 kHz

Audio Power ........................................................... 330 mW Maximum

Built-in Speaker ............... 1⁷/¹⁶Inches (36 mm) 8 Ohm, Dynamic Type

Maximum Current Drain ........................................................... 160 mA

Power Requirement ................... 4 AA Alkaline Batteries (6.0 VDC), or

4 AA Rechargeable Ni-Cd Batteries (4.8 VDC), or

AC Adapter (Cat. No. 273-1665), or

DC Adapter (Cat. No. 270-1560)

Dimensions (HWD) ........................................ 6¹/²× 2⁵/⁸× 1¹¹/¹⁶Inches

(163.9 × 66 × 43.3 mm)

Weight (w/o batteries and antenna) ............................................ 8.1 oz

(228.9 g)

Specifications are typical; individual units might vary. Specifications are

subject to change and improvement without notice.

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Limited One-Year Warranty

This product is warranted by RadioShack against manufacturing defects in material

and workmanship under normal use for one (1) year from the date of purchase from

RadioShack company-owned stores and authorized RadioShack franchisees and

dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS

WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MER-

CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN

DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CON-

TAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO

LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR

ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-

RECTLY OR INDIRECTLY BY USE OR PERFORMANCE 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, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL,

INCIDENTAL, OR CONSEQUENTIAL DAMAGES, 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 exclu-

sions 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. Ra-

dioShack 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 Ra-

dioShack. 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 re-

mainder of the original warranty period. You will be charged for repair or replacement

of the product made after the expiration 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 in-

structions, improper installation or maintenance, alteration, lightning or other inci-

dence of excess voltage or current; (b) any repairs other than those provided by a

RadioShack 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

UBZZ01292ZZ

Printed in the Philippines

6A8

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