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Manual Radio Shack 20-423

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  • Radio Shack 20-423 - page 1

    20-423 Owner’s Manual Please read before us in g this e q uipment. A 200-Channel VHF/AIR/UHF Desktop Scanner with WX Alert ...

  • Radio Shack 20-423 - page 2

    2 Introduction ˆ Introduction Thank you for p urchasing the Radio Shack 200-Channel VHF/AIR/UHF Desktop Scanner. This scanner give s you direct access to over 25,000 frequencies, includi ng those used by police and fire departments, ambulance services, government agencies, air, and amateur radio services. You can select up to 200 channels to scan, ...

  • Radio Shack 20-423 - page 3

    3 Introduction Dual Conversion — helps prevent interference from image frequencies. Your scanner receives these frequenci es (MHz): FCC NOTICE Your scanner might cause TV or ra dio interference even when it is opera ting properly. To determine whethe r your scanner is causin g the in terference , turn of f your scanner. If the interference goes a ...

  • Radio Shack 20-423 - page 4

    4 Contents This scanner has been designed to prevent reception of illegal transmi ssions. This is done to comply with the legal requirement that scanners be manufactured so as to not be easily modifiable to pick up those transmissions. Do not open your scanner's case to make any modifications that c ould allow it to pick up transmissions that ...

  • Radio Shack 20-423 - page 5

    5 Contents Using the Delay Function ........... ............ .............. .............. ........... .............. .............. ..... 20 Locking Out Channels and Frequenci es ........................................................................ 20 Locking Out Channels ............ ........... .............. ............ .............. ..... ...

  • Radio Shack 20-423 - page 6

    6 Preparation ˆ Preparation POWER SOURCES Using AC Power You can power the scanner using the supplied 12V, 300mA AC adapter. Cautions: Y ou must use a Class 2 power source that supplies 12V DC and delivers at least 3 00 mA. Its center tip must be set to positive and its plug must fit the scanner's DC12V jack. The supplied adapter meets these ...

  • Radio Shack 20-423 - page 7

    7 Preparation 3 . Plug the cord into the vehicle’s cigarette-lighter socket. Notes : • If you use a 12V DC cord and your vehicle's en gine is runnin g, you might hear electrical noise on th e scanner caused by the engine . This is normal. • Mobile use of this scanner is un lawful or requires a permit in some areas. Check the laws in your ...

  • Radio Shack 20-423 - page 8

    8 Understanding Your Scanner the scanner and co nnect the cable to the ANT jack. Warning: U se extreme caution when you install or remove an outdoor antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touche s a power line, co ntact with the antenna, mast, cable, or guy wires can cause electrocut ...

  • Radio Shack 20-423 - page 9

    9 Understanding Your Scanner WX — scans through the seven preprogrammed weather channels. SCAN — scans through the programmed channels. MANUAL — stops scanning an d lets you directly enter a channel number. L/O RVW , L/O (Lock Out Review/Lock Out) — lets you review locked-out frequencies, or lets you lock out selected channels/ frequencies ...

  • Radio Shack 20-423 - page 10

    10 Understanding Your Scanner SRCH — appears during service bank and direct frequency searches. SCAN — appears when you scan channels. MAN — appears when you manually select a channel. PGM — appears while you program frequencies into the scanne r's chann els. PRI — appears when you turn on the priority feature. DLY — appears when y ...

  • Radio Shack 20-423 - page 11

    11 Understanding Your Scanner Service Banks The scanner is preprogrammed with the frequencies allocated by fire /p olice, aircraft, ham radio, and marine services. In these service banks, you can search through the frequencies and store them in channels fo r fire/police, ai rcraft, ham radio, and marine banks. This is handy for quickly finding acti ...

  • Radio Shack 20-423 - page 12

    12 Understanding Your Scanner Marine Channel Frequency (MHz) Channel Frequency (MHz) 06 156.3000 64 156.2250 07 156.3500 65 156.2750 08 156.4000 66 156.3250 09 156.4500 67 156.3750 10 156.5000 68 156.4250 1 1 156.5500 69 156. 4750 12 156.6000 70 156.5250 13 156.6500 71 156.5750 14 156.7000 72 156.6250 15 156.7500 73 156.6750 16 156.8000 74 156.7250 ...

  • Radio Shack 20-423 - page 13

    13 Understanding Your Scanner Fire/Police Group Frequency Range (MHz) Step (kHz) 1 33.420–33.980 20 37.020–37.420 20 39.020–39.980 20 42.020–42.940 20 44.620–45.860 40 45.880 — 45.900 — 45.940–46.060 40 46.080–46.500 20 2 153.770–154.130 60 154.145–154.445 15 154.650–154.950 15 155.010–155.370 60 155.415–155.700 15 155.7 ...

  • Radio Shack 20-423 - page 14

    14 Operation ˆ Operation T UR NING ON THE SCANNER/SETTING V OLUME AND SQUELCH 1. T urn SQUELCH fully counterclockwise until the indicator points to MIN . 2. Slide POWER to ON to turn on the scanner . 3. T urn VOLUME clockwise until you hear a hissing sound. 4. T urn SQUELCH clockwise, just until the hissing sound stops. Notes: • T o listen to a ...

  • Radio Shack 20-423 - page 15

    15 Operation 4. T o progra m the next ch ann el in sequence, press PGM and repeat Steps 2 and 3. 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 “Understanding Service Banks/ Banks” on Page 10 ...

  • Radio Shack 20-423 - page 16

    16 Operation frequency flash for about 3 seconds. If you want to store the frequency anyway , press ENTER again. Y ou can delete the frequency later . 4. T o store the displaye d frequency in the selected channel, press PGM , press the channel number yo u want to ente r the channel and press PGM again, then press ENTER . The channel and frequency f ...

  • Radio Shack 20-423 - page 17

    17 Operation • If you entered a frequency that is already stored in another channel, - dUPL- and the lowe st-numbered channel containing the duplicate frequency flash for about 3 seconds. If you want to store the frequency anyway , press ENTER again. • T o store the displayed frequency in the selected channel, press PGM , press the channel numb ...

  • Radio Shack 20-423 - page 18

    18 Operation frequency number, then i t automatically begins scanning again when the transmission ends on that frequency. Scanning Options While scanning you can select from several options to enhance your scann ing enjoy- ment. • T o reve rse the scanning d irection at any time, press 8 8 8 8 or 9 9 9 9 . • T o set the scann er to remain on th ...

  • Radio Shack 20-423 - page 19

    19 Operation 5. T o clear ano th er channel, use the number keys to enter that channel number , then press PGM again. Or, repeatedly press PGM until the desired channel number appears. Th en repeat Step 4. LISTENING TO THE MARINE BANK 1. T o listen to the marine ban k, repe atedly press BAND until MARINE appears. 2. T o change the channe l, press e ...

  • Radio Shack 20-423 - page 20

    20 Special Features ˆ Special Features USING THE DELAY FUNCTION Many agencies use a two-way radio system that 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 frequ ency. When your scanner stops on any cha nnel or frequency with a programmed delay, DLY ap ...

  • Radio Shack 20-423 - page 21

    21 Special Features Reviewing Locked-Out Frequencies To review the freq uencies you locked ou t, hold down L/O (L/O RVW) at least 2 seconds during a search. L-r appears. As you press 8 8 8 8 or 9 9 9 9 , all locked-out frequenci es appear in sequence. When you reach the highest frequency, the scanne r beeps twice then returns to the lowest lo cked- ...

  • Radio Shack 20-423 - page 22

    22 Special Features 2. While you hold down 2 and ENTER , turn on the scanner . The display sh ows oFF tonE or on tonE . Then re lease th e keys. USING A COMPUTER TO PROGRAM THE SCANNER You can connect your scan ner to a personal computer and program frequencies into th e scanner from the computer using an o ptional cable and software. Note: The nec ...

  • Radio Shack 20-423 - page 23

    23 Guide to the Action Bands ˆ Guide to the Action Bands T ypical Band Usage Primary Usage As a general rule, most of the radio activity is concentrated on the following fre que ncies: VHF Band UHF Band Note: Remote control stations and mobil e units operate at 5 MHz higher than their associated base stations and relay repeater units. HF Band (3.0 ...

  • Radio Shack 20-423 - page 24

    24 Guide to the Action Bands BAND ALLOCATION To help decide which frequency ranges to scan, use the followin g listing of the typical services that use the frequencies your scanner re ceives. These frequencies are subj ect to change, and might vary from area to area. For a more complete listing, refer to the Beyond Police Call , available at your l ...

  • Radio Shack 20-423 - page 25

    25 Guide to the Action Bands VERY HIGH FREQUENCY (VHF) — (30 MHz – 300 MHz) VHF Low Band (29.7–50 MHz — in 5 kHz steps) 29.700–29.790 ................................................................................................................. .... IND 29.900–30.550 ................................................................... ...

  • Radio Shack 20-423 - page 26

    26 Guide to the Action Bands 157.470–157.515 .............................................................................................................. TO W 157.530–157.725 ....................................................................................................... IND, T A XI 157.740 .......... .............. ........... ....... ...

  • Radio Shack 20-423 - page 27

    27 Guide to the Action Bands 462.9375–463.1875 ........................................................................................................... M ED 463.200–467.925 ............................................................................................................... . B U S FM-TV Audio Broadcast, UHF Wide Ba nd (470–512 M ...

  • Radio Shack 20-423 - page 28

    28 Troubleshooting ˆ T roubleshooting If your scanner stops operating properly, these suggestions might help you eliminate the problem. If the scan ner still does not ope rate properly, take it to your local R adioShack store for assistance. RESETTING/INITIALIZING THE SCANNER If the scanner's displ ay locks up or does not work properly after ...

  • Radio Shack 20-423 - page 29

    29 Troubleshooting Initializing the Scanner Important : This procedure clears all infor- mation you stored in the scanner's memory. Initialize the scanner only wh en you are su re the scanner is not working properl y. 1. T urn off the scanner , then turn it on again. 2. Hold down MON/CL . 3. While you hold down MON/CL , insert a pointed object ...

  • Radio Shack 20-423 - page 30

    30 Specifications ˆ Specifications Frequency Coverage: Ham ................................................................................................ 29–30 MHz (5.0 kHz Steps) VHF Lo ........................................................................................... 30–50 MHz (5.0 kHz Steps) Ham .................................. ...

  • Radio Shack 20-423 - page 31

    31 Specifications Audio Output Power (10% THD) ........ .............. .............. .............. .............. ......... 0.8 W Nominal Built-in Speaker ............................................................ 3 inch (77 mm), 8-Ohm, Dynamic T ype Power Requirements ........ ............... .............. .............. .............. ...... ...

  • Radio Shack 20-423 - page 32

    20-423 GE-01D-5370 11 A 0 1 Printed in China A RadioShack Corporation Fort Worth, Texas 76102 Limited One-Y ear Warranty This product is warranted by RadioShack against manufactu ring defects in material and workman- ship under normal use for one (1 ) year from t he da te of pu rchase from Radi oSha ck compan y- owned stores and authorized RadioSha ...

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Documents that we receive from a manufacturer of a Radio Shack 20-423 can be divided into several groups. They are, among others:
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- or energy labels Radio Shack 20-423
All of them are important, but the most important information from the point of view of use of the device are in the user manual Radio Shack 20-423.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Radio Shack 20-423, service manual, brief instructions and user manuals Radio Shack 20-423. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Radio Shack 20-423.

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A complete manual for the device Radio Shack 20-423, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Radio Shack 20-423 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Radio Shack 20-423.

A complete Radio Shack manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Radio Shack 20-423 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Radio Shack 20-423, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Radio Shack 20-423, that we can find in the current document
3. Tips how to use the basic functions of the device Radio Shack 20-423 - which should help us in our first steps of using Radio Shack 20-423
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Radio Shack 20-423
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Radio Shack 20-423 in a specific country, if it was not possible to solve the problem on our own.

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