Radio Shack 200 Ch VHF/Air/UHF Home Scanner Manual de usuario

Cat. No. 20-422

OWNER’S MANUAL

Please read before using this equipment.

200CH VHF/Air/UHF Home Scanner

with Scanner Control Protocol and WX Alert

20-422.fm Page 1 Friday, January 7, 2000 12:54 PM

FEATURES

Your RadioShack 200Ch VHF/Air/UHF

Home Scanner lets you in on all the ac-

tion! This scanner gives you direct ac-

cess to over 23,000 frequencies,

including those used by police and fire

departments, ambulance and transpor-

tation services, government agencies,

and amateur radio services. You can se-

lect up to 200 channels to scan and you

can change selections at any time.

The scanner’s frequency bands let you

search specific, preset ranges of fre-

quencies quickly and easily.

Your scanner has all these special fea-

tures:

Weather Alert — warns you of serious

weather conditions by sounding an

alarm if the weather service transmits a

weather alert tone.

Weather Band Key — scans seven pre-

programmed weather channels to keep

you informed about current weather

conditions.

Scanner Control Protocol — lets you

download channel information (frequen-

cy, lockout, priority, delay) from your PC

to the scanner.

Ten 20-Channel Storage Banks — let

you store 20 channels in each of ten

banks to group channels so calls are

easier to identify.

Ten Monitor Memories — let you tem-

porarily save ten frequencies located

during a frequency search, so you can

decide if you want to store them perma-

nently.

Priority Channels — let you set the

scanner to check up to ten channels ev-

ery 2 seconds so you do not miss impor-

tant calls.

Band Search — lets you quickly and

easily search preset frequency ranges,

so you can find new and unlisted broad-

casts.

Direct Search — lets you search for a

transmission starting from a specified

frequency.

Search Skip — lets you select up to 20

frequencies for the scanner to skip dur-

ing a search, so you can search more

efficiently.

Two-Second Channel Scan/Search

Delay — lets you set the scanner so it

delays scanning or searching for 2 sec-

onds before moving to another channel/

frequency, so you can hear more re-

plies.

Lock-Out — keeps channels you select

from being scanned, so you can skip

over busy channels such as those with a

continuous transmission.

RadioShack is a registered trademark used by Tandy Corporation.

20-422.fm Page 2 Friday, January 7, 2000 12:54 PM

Key Confirmation Tones — the scan-

ner sounds a tone when you perform an

operation correctly and sounds an error

tone if you make an error.

Memory Backup — keeps channel fre-

quencies stored in memory for an ex-

tended time even if your scanner loses

power.

External Speaker Jack — lets you con-

nect an external speaker, or an ear-

phone or headphones for private

listening.

External Antenna Terminal — lets you

connect an external antenna (not sup-

plied) for improved reception.

Your scanner can receive all of these

frequencies:

• 29–54 MHz (10-Meter Amateur

Radio, VHF Lo, 6-Meter Amateur)

• 108–136.975 MHz (Aircraft)

• 137–174 MHz (Government, 2-

Meter Amateur Radio, VHF Hi)

• 406–512 MHz (UHF Lo, 70-Centi-

meter Amateur Radio, Government,

UHF “T” Band)

This table shows the preset frequency

steps your scanner uses for each fre-

quency range.

Note: The frequency steps are preset.

You cannot change them.

Your scanner can also receive these

preprogrammed weather channel fre-

quencies:

• 162.400 MHz

• 162.425 MHz

• 162.450 MHz

• 162.475 MHz

• 162.500 MHz

• 162.525 MHz

• 162.550 MHz

Frequency

Range (MHz) Step (kHz)

29–54 5

108–136.975 12.5

137–144 5

144–148 5

148–174 5

406–450 12.5

450–470 12.5

470–512 12.5

20-422.fm Page 3 Friday, January 7, 2000 12:54 PM

FCC NOTICE

Your scanner might cause TV or radio

interference even when it is operating

properly. To determine whether your

scanner is causing the interference, turn

off your scanner. If the interference goes

away, your scanner is causing it. Try to

eliminate the interference by:

• moving your scanner away from the

receiver

• connecting your scanner to an outlet

that is on a different electrical circuit

from the receiver

• contacting your local RadioShack

store for help

If you cannot eliminate the interference,

the FCC requires that you stop using

your scanner.

This device complies with Part 15 of the

FCC Rules

. Operation is subject to the

following conditions: (1) This device

must not cause harmful interference and

(2) this device must accept any interfer-

ence received, including interference

that may cause undesired operation.

SCANNING LEGALLY

Your scanner covers frequencies used

by many different groups including po-

lice and fire departments, ambulance

services, government agencies, private

companies, amateur radio services, mili-

tary operations, pager services, and

wireline (telephone and telegraph) ser-

vice providers. It is legal to listen to al-

most every transmission your scanner

can receive. However, there are some

transmissions you should never inten-

tionally listen to. These include:

• telephone conversations (cellular,

cordless, or other private means of

telephone signal transmission)

• pager transmissions

• any scrambled or encrypted trans-

missions

According to the Electronic Communica-

tions Privacy Act (ECPA), you are sub-

ject to fines and possible imprisonment

for intentionally listening to, using, or di-

vulging the contents of such a transmis-

sion unless you have the consent of a

party to the communication (unless such

activity is otherwise illegal).

This scanner has been designed to pre-

vent reception of illegal transmissions.

This is done to comply with the legal re-

quirement that scanners be manufac-

tured so as to not be easily modifiable to

pick up those transmissions. Do not

open your scanner’s case to make any

modifications that could allow it to pick

up transmissions that it is not legal to lis-

ten to. Doing so could subject you to le-

gal penalties.

We encourage responsible, legal scan-

ner use.

20-422.fm Page 4 Friday, January 7, 2000 12:54 PM

CONTENTS

Preparation .............................................................................................................. 6

Removing the Display Protector ......................................................................... 6

Connecting an Antenna ...................................................................................... 6

Connecting Power .............................................................................................. 7

Connecting an External Speaker ........................................................................ 8

Connecting an Earphone or Headphones .......................................................... 8

Understanding Your Scanner ................................................................................ 9

A Look at the Front Panel ................................................................................... 9

A Look at the Display ....................................................................................... 10

Understanding Banks and Bands ....................................................................... 12

Channel-Storage Banks ................................................................................... 12

Monitor Memories ............................................................................................. 12

Frequency Bands ............................................................................................. 12

Operation ............................................................................................................... 14

Turning On the Scanner/Setting Volume and Squelch ..................................... 14

Resetting the Scanner ...................................................................................... 14

Manually Storing Frequencies into Channels ................................................... 14

Searching For and Temporarily Storing Active Frequencies ............................ 15

Listening to Monitor Memories ......................................................................... 16

Moving a Frequency From a Monitor Memory to a Channel ............................ 17

Deleting a Frequency From a Channel ............................................................ 17

Scanning Channels .......................................................................................... 17

Manually Selecting a Channel .......................................................................... 18

Special Features ................................................................................................... 19

Delay ................................................................................................................ 19

Skipping Frequencies/Channels ....................................................................... 19

Priority .............................................................................................................. 20

Listening to the Weather Band ......................................................................... 21

Turning the Key Tone On or Off ........................................................................ 21

A General Guide to Scanning .............................................................................. 22

Guide to Frequencies ....................................................................................... 22

Guide to the Action Bands ................................................................................ 23

Band Allocation ................................................................................................ 24

Frequency Conversion ..................................................................................... 27

Troubleshooting .................................................................................................... 28

Care and Maintenance .......................................................................................... 29

Specifications ....................................................................................................... 30

20-422.fm Page 5 Friday, January 7, 2000 12:54 PM

PREPARATION

This scanner is designed for use in the

home as a base station. You can place it

on any flat surface such as a desk, shelf,

or table.

REMOVING THE DISPLAY

PROTECTOR

Your scanner’s display is protected dur-

ing shipment by a piece of film. Peel off

this film before you use the scanner.

CONNECTING AN

ANTENNA

Connecting the Supplied

Antenna

You must install an antenna before you

can operate the scanner.

The supplied telescoping antenna helps

your scanner receive strong local sig-

nals. To install the antenna, thread it

clockwise into the hole on the scanner’s

top.

The scanner’s sensitivity depends on

the antenna’s length and various envi-

ronmental conditions. For the best re-

ception of the transmissions you want to

hear, adjust the antenna’s length.

Connecting an Outdoor

Antenna

Instead of the supplied antenna, you can

connect an outdoor base-station anten-

na (not supplied) to your scanner. Your

local RadioShack store sells a variety of

antennas. Choose the one that best

meets your needs.

When deciding on a base-station anten-

na and its location, consider these

points:

• The antenna should be as high as

possible on the house.

• The antenna and its cable should be

as far as possible from sources of

electrical noise such as appliances

or other radios.

• The antenna should be vertical for

the best performance.

To connect a base-station antenna, first

remove the supplied antenna from the

scanner. Always use 50-ohm coaxial ca-

ble, such as RG-58 or RG-8, to connect

the base-station antenna. For lengths

over 50 feet, use RG-8 low-loss dielec-

tric coaxial cable. If the antenna cable’s

connector does not fit in the ANT jack,

you might also need an antenna plug

Frequency

(MHz) Antenna Length

29–54 Extend fully

108–174 Collapse one segment

406–512 Collapse both segments

20-422.fm Page 6 Friday, January 7, 2000 12:54 PM

adapter. Your local RadioShack store

carries a wide variety of coaxial antenna

cable and connectors.

Once you choose an antenna, follow the

mounting instructions supplied with the

antenna. Then route the antenna’s cable

to the scanner and connect the cable to

the ANT jack on the back of the scanner.

Cautions:

• Do not run the cable over sharp

edges or moving parts that might

damage it.

• Do not run the cable next to power

cables or other antenna cables.

• Follow all cautions and warnings

included with your antenna.

CONNECTING POWER

Use the supplied 10V, 300-mA AC

adapter to power the scanner.

Warning: Do not use the AC adapter’s

polarized plug with an extension cord re-

ceptacle unless the blades can be fully

inserted to prevent blade exposure.

Cautions:

You must use a Class 2

power source that supplies

10V AC and delivers 300

mA. Its plug must fit the scanner’s

AC 10V jack. The supplied adapter

meets these specifications. Using

an adapter that does not meet these

specifications could damage the

scanner or the adapter.

• A replacement adapter is available

by special order through your local

RadioShack store.

• Always connect the AC adapter to

the scanner before you connect it to

AC power. When you finish, discon-

nect the adapter from AC power be-

fore you disconnect it from the

scanner.

Insert the AC adapter’s barrel plug into

the AC 10V jack on the back of the scan-

ner, then plug the AC adapter into a

standard AC outlet.

20-422.fm Page 7 Friday, January 7, 2000 12:54 PM

CONNECTING AN

EXTERNAL SPEAKER

You can connect an optional external

speaker with a 1/8-inch (3.5-mm) plug to

the scanner. Use an 8-ohm external

speaker that can handle at least 2.5

watts of power. Your local RadioShack

store sells scanner accessories, includ-

ing external speakers.

Insert the speaker’s plug into the EXT.

SP. jack on the back of the scanner.

Note: Plugging in an external speaker

disconnects the scanner’s internal

speaker.

CONNECTING AN

EARPHONE OR

HEADPHONES

You can connect an optional earphone

or pair of monaural headphones with a 1/8-

inch (3.5-mm) plug to the scanner. Your

local RadioShack store sells a complete

line of earphones and headphones.

Insert the earphone’s or headphones’

plug into the EXT. SP. jack on the back of

the scanner.

Note: Plugging in an earphone or head-

phones disconnects the scanner’s inter-

nal speaker.

Listening Safely

To protect your hearing, follow these

guidelines when you use an earphone/

headphones.

• Set the volume to the lowest setting

before you begin listening. After you

begin listening, adjust the volume to

a comfortable level.

• Do not listen at extremely high vol-

ume levels. Extended high-volume

listening can lead to permanent

hearing loss.

• Once you set the volume, do not

increase it. Over time, your ears

adapt to the volume level, so a vol-

ume level that does not cause dis-

comfort might still damage your

hearing.

20-422.fm Page 8 Friday, January 7, 2000 12:54 PM

UNDERSTANDING YOUR SCANNER

A LOOK AT THE FRONT PANEL

VOLUME Turns the scanner on or off and adjusts the volume.

SQUELCH Adjusts the scanner’s squelch.

/ Sets the search direction.

BAND Searches a band you select.

DELAY Programs a 2-second delay for the selected channel; sets a

delay for all active frequencies during a search.

ALERT/PRIORITY Sets the scanner to the weather alert mode; turns priority on

or off for a particular channel.

MONITOR Stores frequencies into, and accesses, the ten monitor

memories.

S/S-LOCKOUT Skips a specified frequency during a band or direct search

(search/skip/lockout) or locks out selected channels during scanning.

HOLD Pauses the scanner during a search.

PROGRAM Programs frequencies into channels.

SCAN Scans through the channels.

MANUAL Stops scanning to let you listen to a monitor memory or di-

rectly enter a channel number.

20-422.fm Page 9 Friday, January 7, 2000 12:54 PM

1–9, 0 Each key has a single-digit label, and the 1–9and 0 keys

also have a range of numbers. Use the digits on the keys to

enter the numbers for a channel or a frequency. Use the

range of numbers above the key (61–80, for example) to se-

lect or deselect the channels in a channel-storage bank.

CLEAR/.Clears an incorrect entry, or enters the decimal point when

you enter a frequency.

WX/E Scans the seven preprogrammed weather channels; stores

frequencies into channels.

A LOOK AT THE DISPLAY

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

look at the display will help you understand your scanner.

BANK Appears with a number (1–10) to its right to show which

channel-storage banks are turned on for scanning.

MON Appears with a number (1–10) to its right to show which

monitor memory you are listening to.

Appears when you tune to a priority channel.

CH Appears with a number (1–200) to its left to show which

channel the scanner is tuned to.

SCAN Appears when you scan channels.

MAN Appears when you manually select a channel.

PGM Appears when you program the scanner.

20-422.fm Page 10 Friday, January 7, 2000 12:54 PM

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