Radio Shack PRO-70 User Manual

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OWNER’S MANUAL

50-Channel Portable Scanner

Please read before using this equipment.

PRO-70

Cat. No. 20-310

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INTRODUCTION

Your new RadioShack PRO-70 50-Channel Portable
Scanner lets you in on all the action. This scanner gives
you direct access to over 22,000 exciting frequencies, in­cluding police and fire departments, ambulance services,
and amateur radio ser vices. You can select up to 50 chan­nels to scan, and you can change your selection at any
time.

The secret to your scanner’s ability to scan so many fre­quencies is it s custom-d esi gned micro pro cessor — a tiny,
built-in computer. Your scanner also has these special
features:

Ten Preprogrammed Search Bands

— let you search
for transmissions within preset frequency ranges, so you
can find intere sting frequencies more quickly.

Ten Preprogrammed Weather Frequencies

— keep

you informed about cur rent weather conditions.

Two-Second Automatic Scan Delay

— delays scanning
for 2 seconds before moving to another channel, so you
can hear more replies .

50 Channels

— let you st ore up to 50 of your favorite fr e-

quencies for easy recall and scanning.

Monitor Memory

— lets you temporarily save an active
frequency you locate during a direct search, until you de­cide whether or not you want to save it into a channel.

Memory Backup

— keeps the channel frequencies

stored in memory for abou t 1 hour during a power loss.

©

1997 Tandy Corporation.

RadioShack is a registered trademark used by Tandy Corporation.

U.S. Patent No’s. 3,794,925: 3,801,914: 3,961,261: 3,962,644:

4,027,251: 4,092,594: 4,123,715: 4,245,348.

All Rights Reserved.

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Channel Lockout — k eeps channels you select from be­ing scanned.

Key Lock — lets you lock the scanner’s keys to help pre­vent accidental ly changing the scanner ’s programming.

Flexible Antenna with BNC Connector — provides ex­cellent reception and is designed to help prevent antenna
breakage.

Liquid Crystal Display — makes it easy to view and
change programming information.

Display Backlight — makes the scanner easy to read in
low light situations.

Three Power Options — let you power the scanner from
internal batteries (non-rechargeable batteries or a re­chargeable scanner battery pack) or external AC or DC
power (using optional adapters).

We recommend you record your scanner’s serial number
here. This number is on the scanner’s back panel.

Serial Number:

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Your PRO-70 scanner contains the following prepro­grammed frequencies (divided into search bands). See
“Using Band Search” on Page 25.

Frequency

Band

Search

Range

Description

(in MHz)

0 29-30 10-Meter Amateur Radio
1 30-50 VHF Low
2 50-54 6-Meter Amateur Radio
3 137- 144 Aircraf t/ A ir Sho w s ,

Government
4 144-148 2-Meter Amateur Radio
5 148- 174 VHF Hi
6 380- 420 U.S . G over n m ent
7 420-450 70-Centimeter Amateur Radi o
8 450- 470 UHF Low
9 470- 512 UHF “ T ” Band

In addition, your scanner is preprogrammed with the fol­lowing weather service frequencies:

161.650 161.775 162.400 162.425

162.525 162.450 162.475

162.500 162.550 163.275

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This owner’s m anual also incl udes the section “A General
Guide to Scanning,” which helps you target frequency
ranges in your service area so you can search for a wide
variety of broadcasts.

FCC NOTICE

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

• Move your scanner away from the TV or radio

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

• Contact your loca l Radi oShack store for help

If you cannot eliminate the interference, the FCC requires
that you stop using yo ur scanner.

This device complies with Part 15 of the
eration is subject to the following conditions: (1) This de­vice must not cause harmful interference, and (2) This
device must accept any interference received, including
interference that may cause undesired operation.

Note:

Mobile use of this scanner is unlawful or requires a

permit in some areas. Check the laws in your area.

FCC Rules

. Op-

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SCANNING LEGALLY

Scanning is a fun and interesting hobby. You can hear
police and f ire departments, am bulance services, govern­ment agencies, private companies, amateur radio servic­es, air craft , and milit ary o peratio ns. It is legal to listen to
almost every transmission your scanner can receive.
However, there are some electronic and wire communi­cations that are illegal to intentionally intercept. These in­clude:

• Telephone conversations (cellular, cordless, or other
private means of telephone signal transmi ssion)

• Pager transmissions

• Scrambled or encrypted transmissions

According to the

vacy Act

possibly imprisoned for intentionally listening to, using, or
disclosing t he contents of such a transmission unless you
have the consent of a party to the communication (unless
such activity i s o therwi se il legal ). Thes e laws ch ange f rom
time to time and there might be state or local laws tha t also
affect legal scanner usage.

6

(ECPA), as amended, you could be fined and

Federal Electronic Communications Pri-

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CONTENTS

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

Power S ou r ce s ..................... .. ... ....... ... .. ....... ... .. .... 9

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

Using Standard AC Power .......... .................. 11

Using Vehicle Battery Power ........................ 12

Charging a Rechargeabl e Battery Pack ...... . 13

Connecting the Antenna ...................................... 14

Connecting an Optio nal Antenna .................. 15

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

Listening Safely ........................................... 16

Traffic Safety ................................................. 16

Connecting an Extension Speaker ...................... 17

Using the Belt Clip ............................................... 17

Understanding the PRO-70 ...................................... 18

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

A Look at the Display ........... .. .......... .. .................. 19

Operation ....... .. ...................... ... .. ....... ... .. ........ .. .. ....... 21

Turning On the Scanner and Setting SQUELCH . 21
Searching For and Storing Active Frequencies ... 22

Active Frequency References ...................... 22

Storing Frequenc ies ..................................... 23

Using Band Search ......... .......... .. .................. 25

Using Direct Search ...................................... 27

Using the Monitor Memory ................................... 28

Listening to the Monitor Memory .................. 28

Moving a Frequency from the Monitor

Memory to a Channel ................................... 28

Scanning the Stored Channels ............................ 29

Monitoring a Stored Channel ......................... ...... 30

Clearing a Stored Channel .................................. 31

Spec ia l F eatures ................. .. ... ....... .. ... ....... ... .. ......... 32

Using the Keylock ................................................ 32

Locking Out Channels ......................................... 32

Using a 2-Second Delay ........ .. .......... ............ ...... 33

Using the Display Backlight ................................. 34

Listening to a Weat her Band ............................... 34

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A Gener a l S ca n n in g Gu id e ................ .. ... ....... ... .. ..... 36

Guide to Frequencies .......................................... 36

National Weather Frequencies ..................... 36

Ham Radio Frequencies ............................... 36

Birdie Frequencies ....................................... 37

Guide to the Action Bands ................................... 37

United States Broadcast Bands ........ ........... 37

Typical Band Usage ..................................... 38

Primary Usage .............................................. 38

Spec ifi ed In te r va ls .................. .. ... ....... ... .. ..... 39

Band Allocation ................................. ........... .. ...... 40

Avoiding Image Frequencies ............................... 45

Frequency Conversion ........................................ 46

Troubleshooting ........................................................ 47

Resetting/Initializing the Scanner ........................ 49

Resetting the Scanner .................................. 49

Initializing the Scanner ................................. 50

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

Spec if ic a ti on s ..... ............... .. ... .............. ... .. ........ .. .. ... 52

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PREPARATION

POWER SOURCES

You can power your scanner from any of three sources:

• Internal batteries or a rechargeable scanner battery

pack (not supplied — see “Using Batteries”)

• Standard AC power (with an optional AC adapter —

see “Using Standard AC Power” on Page 11)

• Vehicle battery power (with an optional DC adapter

— see “Using Vehicle Battery Power” on Page 12)

Notes:

• Connecting an AC or DC adapter to the scanner dis-

connects any internal batteries, but it does not dis­connect a rechargeable battery pack. If you install a
rechargeable battery pack, you can operate the
scanner and recharge the battery pack at the same
time. See “Using Batteries” and “Charging a
Rechargeable Battery Pack” on Page 13.

• If the scanner stops working properly after connect-

ing it to power, try resetting it. See “Resetting/Initial­izing the Scanner” on Page 49.

Using Batteries

You can power your s canner fro m six AA batte ries. For the
longest operation and best performance, we recommend
alkaline batteries, such as RadioShack Cat. No. 23-552.
You can also power the scanner from a rechargeable
scanner battery pack, such as Cat. No. 23-288.

Note:

You can also use six rechargeable nickel-cadmium
batteries (such as Cat. No. 23-125) to power the scanner.
To charge or recharge nickel-cadmium batteries, howev­er, you must remove them from the scanner and use an
external charg er (s uch as Cat. No. 23-134).

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Follow these steps to install batteries or a battery pack.

1. Press down on the battery com partment cover on the
bottom of the scanner and slide the cover in the
direction of the arr ow to r em ove it.

2. Pull up and slide the battery holder or battery pack
out of the battery compartment.

3. If you are installing individual batte ri es, insert six bat­teries in the battery holder as indicated by the polar­ity symbols (+ and –) mark ed on the bat tery holder.

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4. Slide the battery holder or battery pack into the com­partment.

Caution: The battery holder or battery pack fits only
one way inside the battery compartment. Do not
force it.

5. Replace the cover.

If

flashes on the disp lay, immediat el y repla ce all s ix

BATT

non-rechargeable batteries, remove and recharge all six
rechargeable batteries, or rec harge the battery pac k. See
“Charging a Rechargeable Battery Pack” on Page 13.

Caution: Always dispose of old batteries promptly and
properly. Do not bury or burn them.

Using Standard AC Power

To power the scanner from AC power, you need an AC
adapter such as RadioShack Cat. No. 273-1665. Plug the
adapter’s barrel plug into the scanner’s

PWR/DC 9V

Then plug the adapt er’s power mo dule in to a stan dard AC
outlet.

PWR/DC 9V

jack.

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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:

• You must use an AC adapter that supplies 9 volts
and delivers at least 300 milliamps. Its center tip
must be set to negative, and i ts plug must correctly fit
the scanner’s

PWR/DC 9V

jack. The recommended
adapter meets these specifications. Using an
adapter that does not meet these specifications
could damage the scanner or the adapter.

• When you finish using the AC adapter, disconnect it
from the AC outlet first. Then disconnect it from the
scanner.

Using Vehicle B attery Power

To power the scanner from your vehi cle’s cigarette lighter
socket, you need a DC Adapter, such as Cat. No. 270-

1560.

Cautions:

• You must use a DC adapter that supplies (regulated)
9-volt power and de livers at lea st 300 millia mps. Its
center tip must be set to negative, and its plug must
correctly fit the scanner’s

PWR/DC 9V

jack. The rec­ommended adapter meets these specifications.
Using an adapter that does not meet these specific a­tions 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 cigarette­lighter socket before you unplug it from the scanner.

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4

2

3

1

1. Connect the DC adapter’s orange barrel plug to the
adapter’s cable, wit h the tip set to – (negative).

2. Set the adapter’s volta ge switch to 9V.

3. Insert the barrel plug into the scanner’s

PWR/DC 9V

jack.

4. Plug the other end of the adapter into your vehicle’s
cigarette-lighter socket.

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.

Charging a Rechargeable Battery Pack

Your scanner has a built-in charging circuit that lets you
charge a recharge able scan ner ba tter y pack (Cat . No. 23­288, not supplied) while it is in the scanner. To charge a
battery pack, simply connect an appropriate AC or DC
adapter to the

PWR/DC 9V

jack.

Note:

If you want to take the battery pack out of the scan­ner to charge it, follow the instructions provided with the
battery pack.

It takes about 14-16 hours to recharge a battery pac k that
is fully discharged. You can operate the scanner while re­charging the battery pack, but the charging time is l ength­ened.

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Note: A rechargeable battery pack lasts longer and deliv­ers more power i f y ou occasio nally let it f ully disc harge. To
do this, sim ply us e the sc anner unti l
display. Then fully charge the battery pack.

Important! At the end of a rechargeable battery pack’s
useful life, it must be recycled or disposed of properly.
Contact your lo cal, county, or state hazar dous waste m an­agement authorit ies for inf ormation on r ecycling or dispos­al programs in your area. Some options that might be
available are: muni cipal cu rb-si de coll ecti on, drop- off bo x­es at retailers, recycling collection centers, and mail -back
programs.

appears on the

BATT

CONNECTING THE ANTENNA

Follow these steps to attach the supplied flexible antenna
to the

jack on the top of your sca nner.

ANT

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

2. Press the antenna down over the jack and turn the
antenna’s base clockwise until it locks into place.

14

ANT

jack.

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Connecting an Optional Antenna

The antenna connector on your sca nner makes it easy to
use the scanner wit h a variety of antennas. Instead of the
supplied anten na, you can attach a different one, such as
an external mobile antenna or outdoor base station ant en­na. Your local RadioShack store sells a variety of anten­nas.

Always use 50-ohm coaxial cable, such as RG-58 or RG­8, to connect an outdoor antenna. For lengths over 50
feet, use RG- 8 low- loss die lectr ic c oaxial ca ble. If yo ur an­tenna’s cable does not have a BNC connector, you will
also need a BNC adapter (also available at your local Ra­dioShack store).

Follow the instal lation instructi ons supplied with the anten­na, route the antenna cable to the scanner, then connect
it to the

ANT

jack.

Warning:

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

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CONNECTING AN EARPHONE/
HEADPHONES

For private listening, you can plug an earphone or mono
headphones (such as Cat. No. 33-175 or 20-210) into the

jack on top of your scanner. This automatically dis-

connects the internal speaker.

Listening Safely

To protect your hearing , foll ow these gui deli nes when you
use an earphone or headphones:

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

• Set the volume to the lowest setting before you begin
listening. Aft er 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 wear an earphone or headphones while you drive
a vehicle or ride a bicycl e. This can create a traffic hazard
and can be illegal in some areas.

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Even though some earphones and headphones let you
hear some outside sounds when you listen at normal lev­els, they still can present a traffic hazard.

CONNECTING AN EXTENSION
SPEAKER

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

541), positioned in the right place, might provide more
comfortable listening. Plug the speaker cable’s
mini-plug int o your scanner’s jack.

1

/8-inch

USING THE BELT CLIP

You can use the belt cl ip at tached to the back of the scan­ner for hands-free carrying when you are on the go. Sim­ply slide the belt clip over your belt or waistband.

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UNDERSTANDING THE PRO-70

A LOOK AT THE KEYPAD

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

WX

— scans through the 10
preprogrammed weather
channels.

BAND

— selects a prepro-

grammed search band.

SCAN

— scans through the

programmed channels.

MANUAL

— stops scanning and lets you directly enter a

channel number.

/ — begins searching up or down for active frequen-

cies, or selects the direction when you scan channels.

CLEAR

— clears an incorrect entry.

PGM

— programs frequencies into channels.

— locks/unlocks the key pad to prevent accident al en-

tries.

LIGHT

— turns on/off the display’s backlight.

Number Keys (

0/MON

— enters a zero or accesses the monitor memory.

./DLY

— enters a decimal point (neces sar y when pr ogr am-

1-9

) — enter a channel/frequency number.

ming frequencies), or programs a 2-second delay for the
selected channel.

E/L-OUT

— (enter/lockout) enters frequencies into chan-

nels, or locks out channels so they will not be scanned.
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A LOOK AT THE DISPLAY

The display has indi cators th at show the scanner ’s current
operation. A quick look at the display will help you under­stand how to operate your scanner.

— appears when you manually select a channel.

MAN

— appears when you scan channels.

SCAN

— appears when you scan or manually search the 10

WX

preprogrammed weather channels.

— appears when you listen to the mon it or memory.

MON

— appears when the batteri es are l ow.

BATT

— appears when you manually select a channel you

L/O

locked-out whi le scanning.

— appears during band and direct frequency

SRCH

searches.

/ — indicate the search or scan direction.

— appears when you program a 2-second delay

DELAY

for a channel.

— appears while you program frequencies into the

PGM

scanner’s channels.

— appears when you lock the keypad.

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— the digits that precede this indicator (1—50) show

ch

which channel the scann er is tuned to.

— appears during a direct frequency search.

–d

000.0000

which frequency th e scanner is tuned to.

Error
dUPL

quency that is already stored in another channel.

— the digits in the m iddle of th e displ ay sho w

— appears when you make an entry error.

— (duplicate) appears when you try to store a fre-

20

OFF

MAX

MIN

MAX

VOLUME

SQUELCH

OFF

MAX

MIN

MAX

VOLUME

SQUELCH

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OPERATION

TURNING ON THE SCANNER AND
SETTING SQUELCH

1. Turn

SQUELCH

fully counterclockwise before you

turn on the scanner.

2. Turn

VOLUME

clockwise until you hear a hissing

sound.

3. Turn

SQUELCH

clockwise, just unt il t he hissi ng sound

stops.

Note:

To listen t o a weak or dist ant station, t urn
counterclockwise. If reception is poor, turn
clockwise to cut out weak t ransmissions.

SQUELCH
SQUELCH

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SEARCHING FOR AND STORING
ACTIVE FREQUENCIES

Your scanner can store up to 51 frequencies. Each fre­quency can be stored in either a memor y called a cha nnel,
or the temporary memory called a monitor. This scanner
has 50 channels and one monitor memory.

You can store frequenc ies using any of these methods.

• Manually enter and store a specific frequency (see
“Storing Frequencies” on Page 23).

• Search for active frequencies within a range of pre­programmed frequencies and store selected fre­quencies in the scanner’s channel memories (see
“Using Band Search” on Page 25) .

• Search for active frequencies starting directly from
one specific frequency and store a frequency in the
scanner’s monitor memory (see “Using Direct
Search” on Page 27).

• Recall the monitor memory frequency and move that
frequency to a channel memory (see “Using the
Monit or Memo ry” on P ag e 28 ).

Active Frequency References

Good references for active frequencies are RadioShack ’s

Beyond Police Call, Police Call Radio Gui de Includi ng Fire
and Emergency Services
tory

, and

Radio!

magazine. We update these references

often, so be sure to get a curr ent copy.
If you do not have a r eferen ce to fr equen cies i n your ar ea,

or if you want to search for unlisted frequencies, use a
band search or direct search. See also “Guide to the Ac­tion Bands” on Page 37 in this manual.

22

,

Aeronautical Frequency Direc-

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Storing Frequencies

Follow these steps to store frequencies into your scan­ner’s channels.

PGM

.

1. Press
the scanner is in the programming mode.

2. Use the number keys to enter the channel number
(1-50) where you want to store the frequency, then

PGM

press
desired channel numbe r appears.

Notes:

• If you enter an invalid channel number,

appears on the display. Simply repeat this step.

• If a frequency is currently stored in the selected

channel, the channel number does not flash but
the current frequency number appears on the dis­play. You can either repeat this step to select a di f­ferent channel, or replace the current frequency
with a new one.

3. Use the number keys and
quency (including the decimal point) you want to
store in that chan nel.

appears on the display to indicate

PGM

again. Or, repeatedly press

./DLY

to enter the fre-

PGM

until the

Error

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4. Press

E/L-OUT

to store the frequency. The selected
channel number stops flashing, indicating that the
selected channel is stored.

Notes:

• If you entered an invalid frequency in Step 3,

Error

L-OUT

appears on the display after you press

. Simply repeat Steps 3 and 4 and enter a

valid frequency in Step 3.

• Your scanner automatically rounds the entered

frequency down to the nearest valid frequency.
For example, if you try to enter a frequency of

151.4730, your scanner accepts it as 151.4700.

• If you entered a frequency that is already s tored in

another channel,

(duplicate) and the low-

dUPL

est-numbered channel containing the duplicate
frequency flash on the display for about 3 sec­onds.

To store the duplicate frequency, press

E/L-OUT

again. To store a different frequency, repeat Steps
3 and 4, and enter a different frequency in Step 3.

5. Repeat Steps 2-4 to program another channel.

E/

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Using Band Search

If you do not know of a f requency to st ore, yo u can sea rch
your scanner’s preprogrammed search bands for active
frequencies, then store any that you find into your scan­ner’s channels.

Follow these steps to search for and store active frequen­cies using band searc h.

1. Press

2. To select a different band, within 2 seconds, enter

BAND

. The last selected band number (b fol-

lowed by a number, such as

) and the associated

b2

frequency search range appear on the display.

the desired band number (
descriptions) or repeatedly press

0-9

, see Page 4 for

BAND

until the
desired band number appears on the display. After
about 2 seconds,

appears, the next avail-

SRCH

able channel flashes, and the scanner begins
searching rapid ly upward in that band (fro m lowest to
highest frequency) for an active frequency.

Notes:

• To select a different band a fter the scanner beg ins

searching the current band, simply repeat this
step.

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• To reverse the rapid search direction at any time,
press and hold or for about 1second.

• To search the selected band upward or downward
in small increments (in steps of 5 or 12.5 kHz,
depending on the band), press and release or

so or disappears from the display. See

“Specified Intervals” on Page 39.

3. When the scanner finds an active frequency, it stops
scanning and displays that frequency’s number. To
store that frequency in the channel currently flashing
on the display, simply press

E/L-OUT

. The scanner
stores the frequency, then the next available channel
flashes on the display.

Notes

:

• You cannot store an active frequency in the moni-

tor memory during band sear ch.

• After you store a frequency into the last available

channel,
number. If you try to store a channel while
appears, Ch

appears instead of a channel

--ch

appears briefly on the display.

FULL

--ch

In order to stor e mo re frequencies, you must clear
some channels. See “Clearing a Stored Channel”
on Page 31.

4. To search for another active frequency in the
selected band, press and hold or for about 1
second, then repeat Step3.

To select a different band then search for another
active frequen cy, repeat Steps 2 and 3.

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Using Direct Search

During a direct search, the scanner searches upward or
downward, starting from a frequency you specify. Follow
these steps to use dir ect search.

1. Press

MANUAL

want to use as a starting poi nt for the search.

Note:

T o st art fro m a frequency al read y stored in one
of your scanner’s channels, press
enter the desired channel number, then press

UAL

PGM

or

2. Press and hold or for about 1 second to search
upward or downward.
on the display.

or

again.

PGM

, then enter the frequency you

MANUAL

–d, SRCH

, and or appear

or

PGM

MAN-

,

3. When the scanner stops on an active frequency, you
can either:

• Press

0/MON

to store it in the monitor memory.

• Press and hold or to continue the search.

27

20-310 .fm Page 28 We dnesday, August 4, 1999 10:49 AM

USING THE MONITOR MEMORY

After you st ore a freque ncy in t he s canner’ s monitor mem­ory during a direct search, you can recall it and move it to
one of your scanner’s channel memories.

Listening to the Monitor Memory

To recall a frequency stored in the monitor memory, sim­ply press
stored frequency appear on the display.

MANUAL

then

0/MON

.

MAN

then

MON

and the

Moving a Frequency from the Monitor
Memory t o a Channel

1. Press

2. Press

3. Press

28

MANUAL

you want to store the frequency, then press

and the selected channel number appear on

PGM

the display.

MON

appear on the display.

E/L-OUT

stops flashing, and the frequency is stored in the
selected channel.

, enter the channel number where

.

and the monitor memory frequency

MON

.

disappears, the channel n um ber

MON

PGM

.

20-310 .fm Page 29 We dnesday, August 4, 1999 10:49 AM

SCANNING THE STORED
CHANNELS

To set the scanner t o continuously scan t hrough all chan­nels with stored frequencies, simply press
and appear on the display, and the scanner begins to
rapidly scan upward unti l it finds an active frequency.

If the scanner finds an active frequency, it stops and dis­plays that c hannel and f requency number , then i t automa t­ically begins scanni ng again when the transmission ends
on that frequency .

Notes:

• To reverse the scanning direction, press or .

• To set the scanner to remain on the current channel
for 2 seconds after the transmission ends, see
“Using a 2-Second Delay” on Page 33.

• To set the scanner to remain on the current channel,
even after the transmission stops, press
any time during the transmission so
and
toring a Stored Channel” on Page 30).

• To lock out channels so the scanner does not stop
for a transmission on those channels, see “Locking
Out Channels” on Page 32.

disappears from the display (see “Moni-

SCAN

SCAN

MANUAL

MAN

.

appears

SCAN

at

29

20-310 .fm Page 30 We dnesday, August 4, 1999 10:49 AM

MONITORING A STORED CHANNEL

You can continuously monitor a specific 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 sile nce — or if you
simply want to monitor that channel.

Follow these steps to manually select a channel.

1. Press

2. Enter the channel number.

3. Press

MANUAL

MANUAL

.

again.

30

20-310 .fm Page 31 We dnesday, August 4, 1999 10:49 AM

CLEARING A STORED CHANNEL

If you no longer want a frequency stored in a channel
(and you do not want to replace that frequency with a dif­ferent one), follow these steps to clear the stored fre­quency.

1. Select the channel that you want to clear.

2. Press

3. Press

4. Press

PGM

.

appears on the display.

PGM

CLEAR

. The frequency number flashes on the

display.

E/L-OUT

Channels” on Page 32) appears, the channel num­ber flashes, and the frequency number changes to

000.0000

cleared.

.

(lockout — see “Locking Out

L/O

on the display to indicate the channel is

5. To clear another channel, use the number keys to
enter that channel number (1-50), then press
again. Or, repeatedly press
channel number appears. Then repeat Steps 3-4.

PGM

until the desired

PGM

31

20-310 .fm Page 32 We dnesday, August 4, 1999 10:49 AM

SPECIAL FEATURES

USING THE KEYLOCK

Once you program your scanner, you can protect it from
accidental program changes by turning on the keylock
feature. When the keypad is lock ed, the only contr ols that
operate are
Page 34),

Note:

scanning channels or monitoring a single channel, which­ever feature you last selected.

To turn on the keylock, press and hold for about 3
seconds until appears on the display. To turn it off,
press and hold for about 3 seconds until disap­pears from the displ ay.

LIGHT

(see “Using the Display Backlight” on

VOLUME

The keylock does not prevent the scanner from

, and

SQUELCH

.

LOCKING OUT CHANNELS

You can increase the effective scanning speed by locking
out individual channels that have a continuous transmis­sion, such as a weather channel (see “National Weather
Frequencies” on Page 36) or birdie fr equency (s ee “ Bird ie
Frequencies” on Page 37). To lock out a channel, select
that channel t hen press
play.

32

E/L-OUT

.

appears on the di s-

L/O

20-310 .fm Page 33 We dnesday, August 4, 1999 10:49 AM

To remove the l ock-out from a channel, select that chan­nel again, th en press
display.

Notes:

• You can manually select locked-out channels.

• Your scanner automatically locks out empty chan­nels.

E/L-OUT

so

disappears fr om the

L/O

USING A 2-SECOND DELAY

Many agencies use a t wo-wa y radi o syst em th at has a pe­riod of several seconds between a query and a reply. To
avoid missing a reply, you can program a 2-second delay
into any channel or frequency. When your scanner stops
on a channel or fr equency wi th a pr ogra mmed del ay,

appears on the display and the scanner continues to

LAY

monitor that frequency for 2 seconds after the transmis­sion stops befor e resum ing scanning.

You can program a 2-second delay in these three ways:

• If the scanner is scanning and stops on an active
channel, quick ly press
ning again.

• If the desired channel is not selected, manually
select the channel, then press

./DLY

before it continues scan-

./DLY

.

DE-

33

20-310 .fm Page 34 We dnesday, August 4, 1999 10:49 AM

• If the scanner is in the search mode, press
while the scanner is searching.
the display and the scanner automatically adds a 2­second delay to every transmission it stops on.

To turn off the 2- sec ond d elay, press
ner is monitoring the ch annel or frequen cy.
pears from the displ ay.

DELAY

./DLY

while the sc an-

DELAY

./DLY

appears on

disap-

USING THE DISPLAY BACKLIGHT

You can turn on the display’ s back light for easy viewi ng in
the dark. Pres s
onds. To turn off the light before 5 seconds elapse, press

LIGHT

again.

LIGHT

to turn on t he d ispla y lig ht for 5 se c-

LISTENING TO A WEATHER BAND

The FCC (Federal Communications Commission) has al­located 11 channels for use by the National Oceanic and
Atmospheric Administration (NOAA). NOAA broadcasts
your local forecast and regional weather information on
one or more of these channels. We have programmed
your scanner with 10 of the U.S. frequencies most com­monly used by NOAA.

34

20-310 .fm Page 35 We dnesday, August 4, 1999 10:49 AM

To hear your local forecast and regional weather informa­tion, simply press
through the weather band, and and

WX

. Your scanner begins to scan

appear on the

WX

display. To reverse the scanning direction, press or .

Your scanner sho uld s top with in a few s econd s o n your l o­cal weather broadcast. If the broadcast is weak, you can
press or again to resume scanning.

Note:

To manually select a preprogrammed weather

channel, you can:

• repeatedly press

WX

until

appears on the dis-

MAN

play, then repeatedly press or to move forward
or backward t hrough the channels.

• press the number (

0-9

) of the channel you want to li s-

ten to.

35

20-310 .fm Page 36 We dnesday, August 4, 1999 10:49 AM

A GENERAL SCANNING GUIDE

Reception of the frequencies covered by your scanner i s
mainly “line-o f-si ght.” This means you us ually cann ot hear
stations that are beyond the horizon.

GUIDE TO FREQUENCIES

National Weather Frequencies

161.650 161.775 162.400 162.425

162.440* 162 .450 162.475 162.500

162.525 162.550 163.275

*Not preprogrammed in this scan ner, but you can manual­ly program it.

Ham Radio Frequencies

Ham radio operators often transmit emergency informa­tion when other means of communication break down.
The following chart shows the fr equencies t his scanner r e­ceives that Ham radio operators normally use:

Wavelengt h

(meters)

10-meter 29.000–29.700
6-meter 50.000–54.000
2-meter 144.000–148.000
70-cm 420.000–450.000

Note:

Your scanner cannot receive AM transmissions on

these bands.

36

Frequency

(MHz)

20-310 .fm Page 37 We dnesday, August 4, 1999 10:49 AM

Birdie Frequencies

Every scanner has birdie frequencies. Birdies are signals
created inside the scanner’s receiver. These operating
frequencies might interfere with broadcasts on the same
frequencies. If you p rogram one of th ese freq uencies , you
hear only no ise on t hat f requency . If t he int erfe renc e is not
severe, you might be able to turn
cut out the birdie.

The birdie frequencies on this unit to watch for are:

29.900 30.455 30.735 31.480

32.090 32.530 33.580 38.400

51.200 51.225 140.800 143.430

144.000 147.200 153.600 156.800

160.000 162.200 166.400

To find the birdies i n your scanner, begi n by disconnect ing
the antenna and moving it away from the receiver. Make
sure that no other nearby radio or TV sets are turned on
near the scanner . Use the sear ch funct ion and s can ev ery
frequency band from its lowest frequency to the highest.
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 particular scanner for future
reference.

SQUELCH

clockwise to

GUIDE TO THE ACTION BANDS

United States Broadcast Bands

In the United States, there are several broadcast bands.
The standard AM and FM bands are probably the most
well known. There are als o four televisi on audio broadc ast
bands — the lower three transm it on the VHF band and
the fourth transmits on the UHF band.

37

20-310 .fm Page 38 We dnesday, August 4, 1999 10:49 AM

Typical Band Usage

HF Band (3.00–30.0 MHz)

10-Meter Amateur 29.00–29.70 MHz
High Range 29.70–29.90 MHz

VHF Band (30.00–300.0 MHz)

Low Range 30.00–50.00 MHz
6-Meter Amateur 50.00–54.00 MHz
U.S. Government 137.00–144.00 MH z
2-Meter Amateur 144.00–148.00 MH z
High Range 148.00–174.00 MHz

UHF Band(300.00 MHz–3. 0 GHz)

Military Aircraft 380.00–384.00 MHz
U.S. Government 406.00–420.00 MH z
70-Centimeter Ama teur 420.00–450.00 MH z
Low Range 450.00–470.00 MHz
FM-TV Audio Broadcast,

Wide Band 470.00–512.00 MH z

Primary Usage

As a general rul e, most of t he radio ac tivity i s concentra ted
on the following frequencies:

VHF Band

Activities Frequencies (MHz)

Government, Polic e, and Fire 153.785–155.980
Emergency Services 158.730–159.460
Railroad 160.000–161.900

38

20-310 .fm Page 39 We dnesday, August 4, 1999 10:49 AM

UHF Band

Activities Frequencies (MHz)

Land-Mobile
“Paired” Frequencies 450.000–470.000

Base Stations 451.025–454.950
Mobile Units 456.025–459.950
Relay Repeater Units 460.025–464.975
Remote Control Stations 465.025–469.975

Note: Remote con trol stat ions an d mobi le un its o per ate at
5 MHz higher than their associ ated base stations and re­lay repeater uni ts.

Specified Intervals

Frequencies in diff eren t bands ar e acce ssibl e only at spe­cific intervals. For example:

Frequency Range(s) Specified Interval

29–54 and 137–144 MHz 5.0 kHz steps
380–512 12.5 kHz steps

Note: Your scanner automatically rounds the enter ed fre­quency down to the closest valid frequ ency. For example,
if you try to enter 151.473, your scanner accepts this as

151.470.

39

20-310 .fm Page 40 We dnesday, August 4, 1999 10:49 AM

BAND ALLOCATION

To help decide which frequency ranges to scan, use the
following listing of the typical services that use the fre­quencies your scanner receives. These frequencies are
subject to change, and might vary from area to area. For
a mor e co mp lete lis ting , re fer to

Including Fire and Emergency Services

local RadioShack store.

Abbreviations Services

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

BIFC............. .. ............ .Boise (ID) Interagenc y Fir e Cache

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

CAP ......... .. ... ....... .. ... .............. ... .. ....... ... .. ...Civil Air Patro l

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

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

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

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

FIRE.... .. ............... .. ... ....... .. ... ....... ... .. ...... Fir e D e p ar tm e n t

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

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

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

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

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

(Manufacturing, Construction, Farming, Forest Products)

MAR....................... ... .. ....... ... .. ......Milita r y A m a te u r R a di o

MARI......................... .. ... ....... .. ... .. M a rit im e Li m ited Coas t

(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 .. ... ....... ... .. ....... ... .. ....... ... .. ........ .. .. .Polic e De p ar tm e n t

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

(Public Safety, Local Govt., Forestry Conservation)

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

Polic e Call Radio G uide

, available at your

40

20-310 .fm Page 41 We dnesday, August 4, 1999 10:49 AM

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

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

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

TAXI....... ... .. ....... ... .. ....... ... .. ........ .. .. ........ .. ...Tax i S e rv ic e s

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

(Aircraft, Radi o Com mo n Carrier, Landline companies)

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

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

TOW................................................................T ow Trucks

TRAN ... ....... .. ... ....... ... .. ....... ... .. ... Transpo r ta tion Serv ices

(Tr u cks, Tow T rucks, Buses, Railroad, Other)

TSB...... .. ... ....... .. ... ....... .. ... ....... ... .. ....... . Trunk e d Sys tems

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

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

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

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

High Frequency ( HF) Hi — (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)
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

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

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

36.250...................................................Oil Spill Clean-Up

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

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

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

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

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

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

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

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

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

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

46.600–46.990............................................. GOVT, TELC

41

20-310 .fm Page 42 We dnesday, August 4, 1999 10:49 AM

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

47.42 0........ ... .. ....... ... .. ....... ... .. ........ .Amer ic an Re d C ro s s

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 (138–144 MHz)

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

2-Meter Amateur Band (144–148 MHz)

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

VHF-Hi BAND (148–174 MHz)

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

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

150.815–150.965.......... ....................... .....................TOW

150.980................... ............ ........... .. .....Oil Spill Clean Up

150.995–151.130.......... ....................... ...................ROAD

151.145–151.475.......... ....................... ......................POL

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

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

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

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

152.270–152.465............ .. .. ..............................IND, TAXI

152.480................... ............ ........... .. ............ .. ............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 Clean-Up

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

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

156.255.......................................................................OIL

156.275–157.425.....................................................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

42

20-310 .fm Page 43 We dnesday, August 4, 1999 10:49 AM

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

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

161.580.......................................................................OIL

161.600–162.000............................................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........... .. .................... .. ....................Wireless Mics

169.500........... .. .................... .. ................................GOVT

169.505........... .. .................... .. ....................Wireless Mics

169.55–169.9875.................. ............ ..GOVT, MIL, USXX

170.000........... ................................. .........................BIFC

170.025–170.150.................. ............ .. .GOVT, RTV, FIRE

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

170.245–170.305........................................Wireless Mics

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

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

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

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

173.225–173.375.................. ............ .. MOV, NEWS, UTIL

173.3875–173.5375........................................... .. .......MIL

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

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

Ultra High Frequency (UHF) (300 MHZ–3 GHz)
Military Airc raft Band (319.1–383.9 MHz)

380.000–383.900..........................................Coast Guard

U. S. Government Band (406–450 MHz)

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

70-cm Amateur Band (420–45 0 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

43

20-310 .fm Page 44 We dnesday, August 4, 1999 10:49 AM

453.0125–453.9875...................................................PUB

454.000.......................................................................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

462.550–462.725.......... ....................... .................... .GMR

462.750–462.925.......... ....................... .................... ..BUS

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

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

FM-TV Audio Broadcast,
UHF Wide Band (470–512 MHz)
(Channels 14 through 20 in 6 MHz steps)

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

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

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

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

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

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

512.000...........................................................Channel 20

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

44

20-310 .fm Page 45 We dnesday, August 4, 1999 10:49 AM

AVOIDING IMAGE FREQUENCIES

You might discover one of your re gular stations o n anoth­er frequency that is not listed. Thi s might be what is known
as an image frequency. For example, you might find a ser­vice that regularly uses a frequency of 453.275 also on

474.675.
To see if it is an image, do a little math.

Note the new frequency. 474.675
Double the interme diate frequency

of 10.7 MHz (21.400 ) and subtract it
from the new frequency. –21.400

If the answer is the regular frequency, 453.275
then you have tuned to an image.

Occasionally you might get in ter ference on a weak or dis­tant channel f rom a strong broadcast 21.4 MHz below the
tuned frequenc y. This is rar e, and t he im age sign al is u su­ally cleared whenever there is a broadcast on the actual
frequency.

45

20-310 .fm Page 46 We dnesday, August 4, 1999 10:49 AM

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 (t housand)

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

30.62 MHz × 1000 = 30,620 kHz

To convert from kHz to MHz, divide the num ber of kHz by
1,000.

127,800 kHz ÷ 1000 = 127.8 MHz

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

÷

300

50 MHz = 6 meters

46

20-310 .fm Page 47 We dnesday, August 4, 1999 10:49 AM

TROUBLESHOOTING

If your scanner is not working as it should, these sugges­tions might help you eliminate the pr oblem. If the scanner
still does not operate properly, take it to your local Ra­dioShack store for assistance.

PROBLEM

Scanner is
totally inop­erative.

Poor or no
reception

Error
appears on
the display.

Keypad
does not
work.

POSSIBLE

CAUSES

The batteries
are dead.

The optional
AC or DC
power adapter
is not con­nected.

Improperly
connected
antenna.

Programmed
frequencies a re
the same as
birdie frequen­cies.

Programming
error.

Keylock is
turned on.

REMEDIES

Replace the batter­ies with fresh ones
or recharge the bat­tery pack.

Be sure the adapter
is fully ins e rted into

PWR/DC 9V

the
jack.

Be sure the
antenna is properly
connected.

Avoid program­ming frequencies
listed under “Birdie
Frequencies” on
Page 37 or only
select them manu­ally.

Reprogram the fre­quency correctl y.

Turn off keylock.

47

20-310 .fm Page 48 We dnesday, August 4, 1999 10:49 AM

PROBLEM

Keys do not
work or dis­play
changes.

Scanner is
on but will
not scan.

In the scan
mode, the
scanner
locks on fre­quencies
that have an
unclear
transmis­sion.

POSSIBLE

CAUSES

Undetermined
error.

REMEDIES

Turn the scanner
off then on agai n,
or reset the scan­ner (see “Reset­ting/Initializing the
Scanner” on Page

49).

SQUELCH

correctly
adjusted.

is not

SQUELCH

Adjust
clockwise (s ee
“Turning On the
Scanner and Set­ting SQUELCH” on
Page 21).

Birdies. Avoid program-

ming frequencies
listed under “Birdie
Frequencies” on
Page 37 or only lis­ten to them manu­ally.

48

20-310 .fm Page 49 We dnesday, August 4, 1999 10:49 AM

RESETTING/INITIALIZING THE
SCANNER

If the scanner ’s di splay l ocks up o r do es not wor k proper ly
after you connect a power source , you might need to reset
or initialize the scanner.

IMPORTANT!

scanner (see “Resetting the Scanner”). If that does not
work, you can initialize the scanner (see “Initializing the
Scanner” o n Page 50); howev er, t his c lears all info rmat ion
stored in you r scanner’s memory.

If you h ave pr oble ms, firs t try to reset t he

Resetting the Scanner

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

2. Insert a pointe d object, such as a straightened paper
clip, into the reset openi ng on the side of the scanner
(as shown below) and gently press then release the
reset button inside the opening.

Note:

If the scanner still does not work properl y, you might
need to initialize the scanner (see “Initializing the Scan­ner” on Page 50).

49

20-310 .fm Page 50 We dnesday, August 4, 1999 10:49 AM

Initializing the Scanner

Caution:

This procedur e clears all i nformation you stored
in the scanner’s m em ory. Initialize the scanner only when
you are sure the scanner is not working properly.

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

2. Press and hold

3. While holding down

CLEAR

.

CLEAR

, insert a pointed object,
such as a straightened paper clip, into the reset
opening on the side of the scanner and gently press
then release the reset button inside the opening.

4. When the display reappears, release

Note:

You must release

RESET

before releasing

CLEAR

.

CLEAR

otherwise the memory mig ht not clear.

,

50

20-310 .fm Page 51 We dnesday, August 4, 1999 10:49 AM

CARE AND MAINTENANCE

To enjoy your RadioShack PRO-70 50-Channel Portable
Scanner for a long time:

Keep the scanner dry. If it gets wet, wipe it dry
immediately . Liqui ds can cont ain m inerals t hat
can corrode the el ectronic circuits .

Use only fresh batteries of the recommended
size and type. Always remove old and weak
batteries. They can leak chemicals that de­stroy electronic circuits.

Handle the sc anner gent ly an d c arefull y. Drop­ping it can damage circuit boards and cases
and can cause the scanner t o work imprope rly.

Use and store the scann er only i n normal tem­perature environments. Temperature ex­tremes can shorten the life of electronic
devices, dam age batteries, and distort or melt
plastic par ts.

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 looki ng new. Do not use hars h
chemicals, cleaning solvents, or strong deter­gents to clean th e scanner.

Modifying or tamper ing with the sca nner ’s i nternal compo­nents can cause a malfunction and might invalidate its
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 f or assistance.

51

20-310 .fm Page 52 We dnesday, August 4, 1999 10:49 AM

SPECIFICATIONS

Frequency Coverage:

Ham............................... 29–30 MHz (5.0 kHz st eps)

VHF Lo .......................... 30–50 MHz (5.0 kHz steps)

Ham............................... 50–54 MHz (5.0 kHz st eps)

Government............... 137–144 M Hz (5.0 kHz steps)

Ham........................... 144–148 MHz (5.0 kHz steps)

VHF Hi....................... 148–174 MHz (5.0 kHz steps)

Ham/Government.... 380–450 MHz (12.5 kHz steps)

UHF Lo.................... 450–470 MHz (12.5 kHz steps)

UHF Hi (T)............... 470–512 MHz (12.5 kHz steps)

Channels of Operation:.......... .. .......... .. ........ 50 Channels

and 1 Monitor Memory

Sensitivity (20 dB S/N):

29–54 MHz......................................................1.0 µV

137–174 MHz............................................... .. .1.0 µV

380–512 MHz............................................... .. .1.0 µV

Selectivity:

±10 kHz . ..................... ... .. ........ .. .. ........ .. ... ....... –6 d B

±18 kHz . ..................... ... .. ........ .. .. ........ .. ... ..... –50 d B

Spurious Rejection:

29–54 MHz.................................... 50 dB at 40 MHz

137–174 MHz. ............................. 50 dB at 154 MHz

Scanning Rate ........................Up to 25 channels/second

Search Rate ................................. Up to 50 steps/second

Delay Time ...................................................... 2 seconds

Intermediate Frequencies (IF):

1st.............................................................. 10.7 MHz

2nd............ .. .......... ............ .................... .. ..... 455 kHz

IF Rejection: 10.7 MHz ....................... 70 dB at 154 MHz

Squelch Sensitivity:

Threshold....................................... Less than 1.0 µV

Tight................................................... (S+N)/N 25 dB

Antenna Impedance........................................... 50 Ohms

52

20-310 .fm Page 53 We dnesday, August 4, 1999 10:49 AM

Audio Output Power (10%THD)........... 200 mW Nominal

3

Built-in Speaker 1

/8 Inch (36 mm) 8 ohm, Dynamic Type

Power Requirements ..................+9 V DC, 6 AA batteries

AC Adapter (Cat. No. 273-1665)
DC Adapter (Cat. No. 270-1560)

Rechargeable Batt ery Pack (Cat. No. 23-288)

Current Drain (Squelched)..................... .. .. .......... .. .50 mA

Dimensions (HWD) ................... 6

3

/4 × 27/16 × 19/16 Inches

(171 × 62 × 40 mm)

Weight............................ ... .. ............... .. ... ....... ... .. ....8.1 o z

(229 g)

Supplied Accessory ......................... ................... Antenna

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

53

20-310 .fm Page 54 We dnesday, August 4, 1999 10:49 AM

NOTES

54

20-310 .fm Page 55 We dnesday, August 4, 1999 10:49 AM

55

y

y

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y

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y

g

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g

20-310 .fm Page 56 We dnesday, August 4, 1999 10:49 AM

Limited One-Year Warranty

This product is warranted by RadioShack against manufactur ing defects in
material and workmanship under normal use for one (1)
purchase from RadioShack compan
dioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra­dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED
WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FIT­NESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO
THE DURATION OF THE WRITTEN LIMITE D WARRANTIES CONTAINED
HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO
LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PE R­SON OR EN TI TY WI TH RE SP EC T TO A NY L I ABILITY, LOSS OR DA MA GE
CAUSED DIRECTLY 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 DAMA GE S, EV EN IF Rad i oSh a ck HAS BE EN ADVI S ED OF TH E PO S­SIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how lon
or the exclusion of inc id ental or cons eque ntia l d ama
tions or exclusions ma
In the event of a pro duct defect du rin
and the RadioShack sales receipt as proof of purchase date to an
dioShack store. RadioSh ack will, at its optio n, unless otherwise prov ided b
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 des i
the purchase price. Al l replace d par ts and pr oducts , and pr odu cts on whi ch a
refund is made, become the propert
parts and products ma
paired or replaced parts and products are warrant ed for the remainder of the
ori

inal warranty period. You will be charged for repair or replacem ent of the
product made after the expiration of the warrant
This w arran t
to acts of God, a buse, ac cident, mis use, i mproper or abnormal usa
to follow instructions, imprope r installation or mai ntenance, alteration, li
nin
those provided b
such as fuses or batteries; (d) cosmeti c dama
or insurance costs; or (f) costs o f pro duct remova l, insta llation , set-up service
ad

ustment or reinstallation.
This warra nt
ri

hts which vary from state to state.

does not cove r: (a) da mage or failure ca used by or attributable

or other incidence of excess voltage or current; (b) any repairs other than

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

not apply to you.

be used in the performance of warranty servic e. Re-

a RadioShack Authorized Service Facility; (c) consumables

ives you specific l egal rights, and you may also have ot her

RadioShack Customer Relations, Dept. W,

-owned stores and authorized Ra-

the warranty period, take the product

of RadioShack. New or reconditioned

e; (e) transportation, ship pin

We Service What We Sell

ear from the date of

an implied warranty lasts

es, so the a bove limi ta-

Ra-

n; or (c) refund

period.

e, failure

ht-

3/97

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

GE-95D-1652

5A7 Printed in Hong Kong