Radio Shack 20-461 User Manual Download

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Summary of Contents for 20-461

Page 1: ...OWNER S MANUAL c PRO 2037 Programmable Scanner Please read before using this equipment 1 V 0 O 0 40 0 0011 CXl lO 12D F o V Cat No 20 461 ltadie MeIt...

Page 2: ...nnel Storage Banks let you store 20 channels in each of ten banks to group channels so calls are easier to identify Monitor Memories let you tempo rarily save up to ten channels you lo cate during a f...

Page 3: ...scanner If the in terference goes away your scanner is causing the interference Try to elimi nate the interference by Moving your scanner away from the receiver Connecting your scanner to an out let t...

Page 4: ...g an External Speaker 10 UNDERSTANDING YOUR SCANNER 11 A Look at the Keyboard 11 A Look at the Display 12 UNDERSTANDING MEMORY 13 Channel Storage Banks 13 Monitor Memories 13 OPERATION 14 Turning On t...

Page 5: ...GENERAL GUIDE TO SCANNING 21 Guide to Frequencies 21 National Weather Frequencies 21 Ham Radio Frequencies 21 Birdies 22 Guide to the Action Bands 23 Typical Band Usage 23 Primary Usage 24 Specified...

Page 6: ...Frequency Antenna Length 30 174 MHz extend fully 380 512 MHz extend 2 segments 806 960 MHz collapse fully 1 segment only Connecting an Optional Antenna The telescoping antenna is adequate for strong l...

Page 7: ...o 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...

Page 8: ...specifica tions could seriously damage the scanner or the adapter Insert the DC adapter s small barrel plug into the DC 13 8 V jack on the scanner s back Then plug the other end of the DC adapter into...

Page 9: ...EADPHONES For private listening you can connect an optional pair of headphones with a 1 s inch plug to the scanner Use monaural heapdhones such as Cat No 20 210 Note Plugging in headphones auto matica...

Page 10: ...out side sounds when listening at normal volume levels they still present a traf fic hazard 10 You can connect an optional extemal speaker with a 1 s inch plug to the scanner Use an 8 ohm external sp...

Page 11: ...quency range you want to search and T search up or down from the currently displayed frequency MONITOR accesses the 10 monitor memories AM FM switches the scanner to the AM or FM mode PRIORITY sets an...

Page 12: ...the search di rection PRIORITY appears when you turn on the priority channel feature P appears when the scanner is set to the priority channel MONITOR appears when you lis ten to a monitor memory BAN...

Page 13: ...ent frequen cies Additionally there might be other law enforcement agencies such as state police county sheriffs or SWAT teams that use their own frequencies You could program all law enforce ment fre...

Page 14: ...s SCAN The scanner scans either up or down through all non locked channels in the active banks see Locking Out Channels To change the scanning direction press A or T Note An improper SQUELCH setting m...

Page 15: ...equencies into your scanner s channels Follow these steps to store frequencies 1 Press MANUAl Enter the channel number you want to program MANUAl 12345678010 BANK riririrtrtrt I CHLILlLI LILlLIO 2 Pre...

Page 16: ...he frequency range 5 Press ENTER 16 6 Press to search from the lower to the upper limit or press to search from the upper to the lower limit L SEARCH and or appear on the display MONITOR 1 2 3 4 5 6 7...

Page 17: ...0 BANK In rirtririrn Pl 0GRAM ILl I CH UULI LILIU J 3 Press MONITOR and the number of the monitor memory that has the frequency you want to store MONITOR and the frequency ap pear on the display MONIT...

Page 18: ...uses the default AM FM mode for each frequency The scanner keeps searching for frequencies in the se lected mode and AM or FM blinks on the display AM or FM blinks even if the mode of a frequency is t...

Page 19: ...n nel manually select the channel and press LOCK OUT so LOCK OUT dis appears from the display Notes You can still manually select locked out channels You cannot lock out all channels There must be at...

Page 20: ...Oc IBto reduce in terference or noise caused by signals from a strong local broadcast or to OdB to increase the reception of weak signals ATT OdB 10dB ILJIIIIlJI Note With the switch set to 10dB your...

Page 21: ...conditions This type of reception is unpredictable but often very interesting GUIDE TO FREQUENCIES National Weather Frequencies 161 650 MHz 162 425 MHz 162 475 MHz 161 775 MHz 162 400 MHz 162 440 MHz...

Page 22: ...cut out the birdie The most common birdies to watch for are listed below 32 100 MHz 32 250 MHz 42 975 MHz 44 085 MHz 48 185 MHz 52 400 MHz 150 150 MHz 155 500 MHz 166 200 MHz 171 250 MHz 171 550 MHz...

Page 23: ...t Wide Band Public Service Conventional Systems ConventionalfTrunked Systems Trunked Systems Public Safety High Range 33 Centimeter Amateur Private Trunked General Trunked Fixed Services Studio to Tra...

Page 24: ...r Units 460 025 464 975 MHz Remote Control Stations 465 025 469 975 MHz Note Remote control stations and mobile units operate at 5 MHz higher than their associated base stations and relay repeater uni...

Page 25: ...R Military Amateur Radio MARI Maritime Limited Coast Coast Guard Marine telephone Shipboard Radio Private stations MARS Military Affiliate Radio System MED Emergency Medical Services MIL U S Military...

Page 26: ...162 400 162 550 WTHR 162 5625 162 6375 GOVT MIL USXX 162 6625 MED 26 162 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 Wi...

Page 27: ..._ __ __ PSB 33 Centimeter Amateur Band 902 928 MHz 902 0000 928 0000 HAM Private Trunked 935 0125 939 9875 PTR General Trunked 940 0125 940 9875 GTR Fixed Services 941 0000 944 0000 GOVT Studio to Tra...

Page 28: ...programmed Reprogram the frequen frequencies cies correctly Programmed frequen Avoid programming frequen cies that are the same cies listed under Birdie Fre as birdie frequencies quencies or only list...

Page 29: ...authorization to operate it If your scanner is not operating as it should take it to your local Radio Shack store for assistance Handle the scanner gently and carefully Dropping it can damage cir cui...

Page 30: ...electivity 10 kHz 6 dB 20 kHz 50 dB IF Interference Ratio 257 5 MHz at 154 MHz 50 dB 21 4 MHz at 154 MHz 100 dB Scanning Rate 25 channels sec Search Rate 50 steps sec Priority Sampling 2 seconds Delay...

Page 31: ...NOTES 31...

Page 32: ...Nor does it cover a product subjected to misuse or accidental damage EXCEPT AS PROVIDED HEREIN RADIO SHACK MAKES NO WARRANTIES EXPRESS OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS F...

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