Radio Shack 20-430 страница 11 Скачать руководство пользователя | Manualshive

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11

Note: Connecting an external speaker
disconnects the scanner’s internal
speaker.

CONNECTING AN
EARPHONE/
HEADPHONES

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

1

/

8

-

inch plug (such as Cat. No. 33-175 or
20-210) to the

jack on the front of

the scanner. This automatically dis-
connects the internal speaker.

Listening Safely

To protect your hearing, follow these
guidelines when you use an earphone
or headphones.

• Do not listen at extremely high

volume levels. Extended high-
volume listening can lead to per-
manent hearing loss.

• Set

VOLUME

to the lowest setting

before you begin listening. After
you begin listening, adjust

VOL-

UME

to a comfortable level.

• Once you set

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.

20-430.fm Page 11 Wednesday, August 4, 1999 1:29 PM

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Содержание 20-430

Страница 1: ...Owner s Manual Cat No 20 430 PRO 2050 VHF UHF Air 800MHz 300 Channel TrunkTracker Home Scanner Please read before using this equipment 20 430 fm Page 1 Wednesday August 4 1999 1 29 PM...

Страница 2: ...to an active fre quency so you can hear the call and response for that 2 way radio user and easily follow the conversation The scanner also lets you scan con ventional transmissions and is pre progra...

Страница 3: ...steps and scan at up to 50 channels per second to help you quickly find interesting broad casts The normal search speed is 100 steps per second Data Signal Skip lets you set the scanner to skip non mo...

Страница 4: ...sing your scanner This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interfer ence and 2 this device must accep...

Страница 5: ...onversations cellu lar cordless or other private means of telephone signal trans mission Pager transmissions Scrambled or encrypted transmis sions According to the Federal Electronic Communications Pr...

Страница 6: ...anks 16 Service Banks 16 Understanding Trunking 16 Operation 17 Turning On the Scanner and Setting Squelch 17 Storing Known Frequencies into Channels 17 Searching Service Banks 18 Limit Search 19 Scan...

Страница 7: ...an Lists While Searching 34 Automatically Storing an ID in a Scan List Location 34 Deleting a Stored ID 34 Scanning the Scan Lists 34 Scanning Type I and Hybrid Trunked Systems 35 Selecting a Preset F...

Страница 8: ...a screw 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...

Страница 9: ...ting instructions supplied with the antenna Then route the an tenna s cable to the scanner and con nect the cable to the ANT jack on the back of the scanner DC 12V ANT Cautions Do not run the cable ov...

Страница 10: ...its barrel plug into the DC 12V jack on the back of the scanner then plug the power cable into your vehicle s cigarette lighter socket Cautions If you use a DC cigarette lighter power cable with the...

Страница 11: ...y To protect your hearing follow these guidelines when you use an earphone or headphones Do not listen at extremely high volume levels Extended high volume listening can lead to per manent hearing los...

Страница 12: ...ry location called a channel which is grouped with your other channels in a channel storage bank You can then scan the channel storage banks to see if there is activity on the frequencies stored there...

Страница 13: ...s the channels that make up a memory bank Enters a decimal point CLEAR Clears an entry E enter Enters frequencies into channels or enters IDs into a scan list LIMIT t Sets the frequency range sets the...

Страница 14: ...will help you understand how your scanner operates LIST Appears with a number 1 5 to indicate the list num ber BANK Appears with numbers 1 10 to indicate the scan bank PUB Appears when you search the...

Страница 15: ...scanner is in the hold mode during a search DELAY Appears when you program a delay DATA Appears when the data skip function is active L O lockout Appears when you manually select a channel frequen cy...

Страница 16: ...rching through an entire band see Searching Service Banks on Page 18 UNDERSTANDING TRUNKING In the past groups that broadcast fre quently such as police departments were restricted to transmitting on...

Страница 17: ...hear a hissing sound the scanner does not scan properly STORING KNOWN FREQUENCIES INTO CHANNELS Good references for active frequen cies are the RadioShack Police Call Guide including Fire and Emergen...

Страница 18: ...The scanner also stores this setting in the chan nel 4 If you want to program the next channel in sequence press MAN UAL and repeat Steps 2 and 3 SEARCHING SERVICE BANKS You can search for public serv...

Страница 19: ...VC then SEARCH to select a service bank and begin searching 4 When the scanner stops on a transmission press HOLD The frequency appears 5 Press E to store the frequency into the channel LIMIT SEARCH I...

Страница 20: ...ocked out during scanning To scan in the trunk tracking mode see Scanning a Trunked Bank on Page 27 MANUALLY SELECTING A CHANNEL You can continuously monitor a single channel without scanning This is...

Страница 21: ...ner automatically adds a 2 second delay to every transmis sion it stops on in that band or limit range To turn off the 2 second delay press DELAY while the scanner is monitoring the channel or searchi...

Страница 22: ...to stop scanning then hold down L O until the scanner beeps twice Locking Out Frequencies To lock out a frequency during a limit search or service bank search press L O when the scanner stops on the...

Страница 23: ...ansmissions during a scan or search Note Since data signals are not gen erally found in the air band this fea ture does not work in the air service bank To turn on the data skip feature be sure the pr...

Страница 24: ...program as a priority channel To turn on the priority feature press PRIORITY during scanning PRI ap pears As you scan the bank the scanner checks the bank s priority channel every 2 seconds in each ba...

Страница 25: ...ion The police might decide to further divide its fleet into subfleets such as dispatch tactical operations detectives north south east and west side patrols and super visors All the available police...

Страница 26: ...nce in your area PROGRAMMING TRUNKED FREQUENCIES Before you program your scanner to track a trunked system consider the following Valid trunked system frequencies range from 851 0000 868 9875 in 12 5...

Страница 27: ...e trunked bank at a time Once you have stored frequen cies for a trunked system in one or more of the 10 available banks and you are scanning non trunked fre quencies follow these steps to begin trunk...

Страница 28: ...the scanner stays on the current ID 2 If you want to listen to a different ID use the number keys to enter the ID you want to hold LIST 1 appears 3 Press HOLD again HOLD flashes and the scanner monit...

Страница 29: ...to contin ue the scanner s previous function For more information about scan lists see Scan Lists on Page 31 Using Trunk Tracking Scan Delay Many trunked systems have a period of 2 or more seconds be...

Страница 30: ...re being used and generally monitor how much communication traffic is oc curring Each frequency you store in a trunking bank has a corresponding activity indi cator The indicator that remains on stead...

Страница 31: ...search or automatically Manually Storing IDs into Scan Lists 1 Select the trunking bank you want see Scanning a Trunked Bank on Page 27 2 After the scanner begins trunk tracking press MANUAL A scan l...

Страница 32: ...n and store an ID in that location during a search press PRIORITY to display the current scan list location then press E when your scanner stops on an ID you want to store To store an ID in the first...

Страница 33: ...g Systems on Page 25 You might also notice that you are missing responses when you hold on an active ID Unlike Type II systems Type I and hybrid systems require a fleet map that sets specific fleet su...

Страница 34: ...1024 2 S13 1 16 2048 4 S14 1 16 4096 8 Note www trunkscanner com plans to make preset fleet maps available as they become known If you do not already know the size codes used you will have to guess t...

Страница 35: ...e Code Block Size Code 0 S10 0 S1 1 S10 1 S1 2 S11 2 S2 3 S4 3 S2 4 S4 4 S3 5 S4 5 S3 6 S4 6 S4 7 S4 7 S4 E1P9 E1P10 Block Size Code Block Size Code 0 S4 0 S0 1 S4 1 S0 2 S0 2 S0 3 S0 3 S0 Block Size...

Страница 36: ...canner searches for transmissions you see Type I fleet and subfleet IDs such as 100 12 100 9 000 12 or 400 8 How do you know if the preset map you selected is correct Listen to see if you are followin...

Страница 37: ...signed to Blocks 0 and 4 S14 can only be assigned to Block 0 Since these size codes require multi ple blocks you will be prompted for the next available block when pro gramming a fleet map For example...

Страница 38: ...fre quency If the interference is not severe you might be able to turn SQUELCH clockwise to cut out the birdie This scanner s birdie frequen cies in MHz are To find the birdies in your individual scan...

Страница 39: ...470 00 512 00 MHz Public Service 806 00 823 93 MHz Conventional Systems 851 00 856 00 MHz Conventional Trunked Systems 856 00 861 00 MHz Trunked Systems 861 00 866 00 MHz Public Safety 866 00 868 93...

Страница 40: ...e listing re fer to the Police Call Radio Guide in cluding Fire and Emergency Services available at your local Ra dioShack store AbbreviationsServices BIFCBoise ID Interagency Fire Cache BUSBusiness C...

Страница 41: ...servation PSB Public Safety PTR Private Trunked ROAD Road Highway Maintenance RTV Radio TV Remote Broadcast Pickup TAXI Taxi Services TELB Mobile Telephone Aircraft Radio Common Carrier Landline Compa...

Страница 42: ...121 500 AIR Emergency 121 510 136 000 AIR U S Government Band 137 144 MHz 137 000 144 000 GOVT MIL 2 Meter Amateur Band 144 148 MHz 144 000 148 000 HAM VHF High Band 148 174 MHz 148 050 150 345 CAP M...

Страница 43: ...0 400 GOVT MIL 170 425 170 450 BIFC 170 475 PUB 170 4875 173 175 GOVT PUB Wireless Mikes 173 225 173 5375 MOV NEWS UTIL MIL 173 5625 173 5875 MIL Medical Crash Crews 173 60 173 9875 GOVT ULTRA HIGH FR...

Страница 44: ...tional Systems Band Locally Assigned 851 0125 855 9875 CSB Conventional Trunked Systems Band Locally Assigned 856 0125 860 9875 CTSB Trunked Systems Band Locally Assigned 861 0125 865 9875 TSB Public...

Страница 45: ...necessary conversions 1 MHz million 1 000 kHz thousand To convert MHz to kHz multiply the number of megahertz by 1 000 9 62 MHz 1000 9620 kHz To convert from kHz to MHz divide the number of kilohertz...

Страница 46: ...barrel plug is fully inserted into the DC 12V jack The scanner must be reset Reset the scanner see Resetting the Scanner on Page 49 Poor or no reception An antenna is not con nected or connected incor...

Страница 47: ...ave stored are not active Scan another transmis sion Scanner will not acquire a data channel SQUELCH is not cor rectly adjusted for trunk tracking Adjust squelch for trunk tracking See Setting Squelch...

Страница 48: ...unk s fre quencies have been entered Enter all of the trunk s frequencies Channel activity indica tors are lighting but no sound is heard The transmission might be a private or tele phone interconnect...

Страница 49: ...ck Caution This procedure clears all the information you have programmed into the scanner Use this procedure only when you are sure your scanner is not working properly 1 Turn off the scanner 2 While...

Страница 50: ...tore the scanner only in normal temperature environments Temperature extremes can shorten the life of electronic devices and distort or melt plastic parts Keep the scanner away from dust and dirt whic...

Страница 51: ...z in 12 5 kHz steps Public Service Trunking Repeater 851 0000 868 9875 MHz in 12 5 kHz steps Public Service 896 1125 956 0000 MHz in 12 5 kHz steps Channels of Operation Any 300 channels in any band c...

Страница 52: ...2 Volts DC such as Cat No 270 1533 Dimensions 23 4 81 16 711 16 Inches HWD 70 205 195 mm Weight 26 5 oz 750 g Specifications are typical individual units might vary Specifications are subject to chang...

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

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

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

Страница 56: ...ring the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option unless otherwise provided by law a correct th...

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