Radio Shack 20-511, Owner'S Manual

Page 1: ...Cat No 20 511 OWNER S MANUAL PRO 66 50 Channel Direct Entry Programmable Scanner Please read before using this equipment 20 511 fm Page 1 Wednesday August 4 1999 2 13 PM...

Page 2: ...mmable Channels let you store frequencies into the scan ner s memory Band Search lets you search the frequency bands for active fre quencies and direct the search upward or downward through the bands...

Page 3: ...tdoor antenna Audio Output Jack lets you connect optional earphones or head phones so you can listen privately or external speakers so you can lis ten in a noisy area Your scanner can receive all of t...

Page 4: ...erence even when it is op erating properly To determine whether your scanner is causing the in terference turn off your scanner If the interference goes away your scanner is causing it Try the followi...

Page 5: ...ld never in tentionally listen to These include Telephone conversations either cellular cordless or other private means of telephone signal transmission Pager transmissions Any scrambled or encrypted...

Page 6: ...d Setting Squelch 20 Storing Frequencies 21 Searching For and Storing Active Frequencies 22 Band Search 22 Direct Search 23 Search Skip Memory 24 Listening to the Monitor Memory 25 Moving a Frequency...

Page 7: ...7 Troubleshooting 36 Resetting the Scanner 37 Care and Maintenance 38 Specifications 39 20 511 fm Page 7 Wednesday August 4 1999 2 13 PM...

Page 8: ...charge nickel cadmium batteries inside the battery compartment However you must never use this circuit when you have installed non rechargeable batteries in the scanner Be sure to read Important Infor...

Page 9: ...old or weak batteries Batteries can leak chemicals that destroy electronic circuits 5 Replace the cover If flashes on the display and the scanner beeps every 15 seconds im mediately replace or recharg...

Page 10: ...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 s...

Page 11: ...talled rechargeable nickel cadmium batteries in the scanner remove the plastic cap from the CHARGE jack and put the cap in the POWER jack Connect the AC adapter to the CHARGE jack This powers the scan...

Page 12: ...icle s ciga rette lighter socket Always unplug the power cord from the vehi cle s cigarette lighter socket before you unplug it from the scanner Note The scanner receives a 12 volt input at the CHARGE...

Page 13: ...rge them It takes about 10 to 18 hours to recharge batteries that are fully dis charged You can operate the scanner while recharging nickel cadmium batteries but the charging time is lengthened The fi...

Page 14: ...ase antenna Your local RadioShack store sells a variety of antennas Always use 50 ohm coaxial cable such as RG 58 or RG 8 to connect an outdoor antenna For lengths over 50 feet use RG 8 low loss diele...

Page 15: ...o the lowest setting before you begin listening After you begin listening adjust the volume to a comfortable level Once you set the volume do not increase it Over time your ears adapt to the volume le...

Page 16: ...rovide more comfortable listening Plug the speaker cable s 1 8 inch mini plug into your scanner s jack ATTACHING THE BELT CLIP You can attach the supplied belt clip to make your scanner easier to use...

Page 17: ...fre quency during band or direct search CLEAR erases an incorrect entry or an error Enters the decimal point in a frequency MON 0 stores frequencies into and accesses the monitor memory Enters the num...

Page 18: ...you listen to a monitor memory WX appears when you scan the preprogrammed weather channels flashes when you lock the keypad flashes when batteries are low D appears when you program a channel for a 2...

Page 19: ...19 b appears during a band search d appears during a direct search H appears during a band search hold h appears during a direct search hold 20 511 fm Page 19 Wednesday August 4 1999 2 13 PM...

Page 20: ...t clicks If you already pro grammed channels the scanner automatically scans those chan nels 3 Press MANUAL to stop the scanning The display shows the cur rent channel 4 Turn VOLUME OFF clockwise to s...

Page 21: ...sitivity If reception is poor turn SQUELCH clockwise to decrease receiver sensitivity STORING FREQUENCIES Follow these steps to store frequencies into channels 1 Press MANUAL enter the channel number...

Page 22: ...0125 MHz steps Without battery or external adapter power the scanner protects the frequencies stored in memory for about 60 minutes SEARCHING FOR AND STORING ACTIVE FREQUENCIES Band Search A band sear...

Page 23: ...yed press t or s If you tune to a search skip frequency L appears on the display See Search Skip Memory on Page 24 If you want to change the frequency band repeatedly press HOLD BAND The selected freq...

Page 24: ...S when the scanner stops on the fre quency during a band or direct search The scanner stores the frequen cy in memory and resumes the search To clear a single frequency from skip memory so the scanner...

Page 25: ...nto the scanner s monitor memory you can listen to it by press ing MANUAL then MON 0 MOVING A FREQUENCY FROM THE MONITOR MEMORY TO A CHANNEL Follow these steps to move a frequency stored in the monito...

Page 26: ...between a query and a reply To avoid missing a reply you can program a 2 second delay into any channel When the scanner stops on an active channel with a programmed delay it continues to monitor the c...

Page 27: ...ress MANUAL then press and hold L OUT S S until the scanner beeps twice about 3 seconds Note You cannot remove the lock out from empty channels MANUALLY SELECTING A CHANNEL You can continuously monito...

Page 28: ...scanner should stop within a few seconds then you hear the local weather broadcast If the broadcast is weak you can press WX E again to scan through the rest of the weather band USING THE KEYLOCK Once...

Page 29: ...evere you might be able to turn SQUELCH clockwise to cut out the birdie The birdie frequencies on this unit to watch for are To find the birdies in your scanner begin by disconnecting the antenna and...

Page 30: ...cast Wide Band 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...

Page 31: ...e at your local RadioShack store Abbreviations Services BIFC Boise ID Interagency Fire Cache BUS Business CAP Civil Air Patrol CB Citizens Band CCA Common Carrier CSB Conventional Systems CTSB Convent...

Page 32: ...Trucks TRAN Transportation Services Trucks Tow Trucks Buses Railroad Other TSB Trunked Systems TVn FM TV Audio Broadcast USXX Government Classified UTIL Power Water Utilities WTHR Weather VERY HIGH FR...

Page 33: ...POL PUB 156 255 157 425 OIL MARI 157 450 MED 157 470 157 515 TOW 157 530 157 725 IND TAXI 157 740 BUS 157 770 158 100 TELB 158 130 158 460 BUS IND OIL TELM UTIL 158 490 158 700 TELB 158 730 159 465 PO...

Page 34: ...25 IND OIL TELM UTIL 462 550 462 925 GMR BUS 462 9375 463 1875 MED 463 200 467 925 BUS FM TV Audio Broadcast UHF Wide Band 470 512 MHz Channels 14 through 69 in 6 MHz steps 475 750 Channel 14 481 750...

Page 35: ...rference on a weak or distant channel from a strong broadcast 21 7 MHz below the tuned frequency This is rare and the image signal is usually cleared whenever there is a broad cast on the actual frequ...

Page 36: ...ugged into a working AC or DC outlet Recharge the re chargeable batteries or replace the non rechargeable batter ies The optional AC or DC power adapter is not connected Be sure the adapter is fully i...

Page 37: ...ROBLEM POSSIBLE CAUSE REMEDY Poor or no recep tion Batteries are weak or dead Environment is not suitable for reception by the scanner Improperly con nected antenna Check the batteries or make sure th...

Page 38: ...s and can cause the scan ner to work improperly Use and store the scanner only in normal temperature envi ronments Temperature extremes can shorten the life of electronic devices damage batteries and...

Page 39: ...me 2 Seconds Acceptable RF Displacement 6 kHz IF Frequencies 10 85 MHz and 450 kHz Squelch Sensitivity Threshold Less than 0 4 mV Tight S N N 25 dB Built in Speaker 19 16 Inches 4 cm 8 Ohm 0 5 W Dynam...

Page 40: ...k store Warranty does not cover transportation costs Nor does it cover a product subjected to misuse or accidental damage EXCEPT AS PROVIDED HEREIN RADIOSHACK MAKES NO EXPRESS WARRANTIES AND ANY IMPLI...