Radio Shack 20-419 Page 26 Owner'S Manual Download | Manualshive

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26

A GENERAL GUIDE TO SCANNING

Reception of the frequencies covered by your scanner is mainly “line-of-sight.” That
means you usually cannot hear stations that are beyond the horizon.

HAM RADIO FREQUENCIES

Ham radio operators often broadcast emergency information when other means of
communication break down.

The following chart shows the voice frequencies that you can monitor:

NATIONAL WEATHER FREQUENCIES

Wavelength

(Meters)

Voice (MHz)

10

-

meter

29.000

-

29.700

6

-

meter

50.100

-

54.000

2

-

meter

144.100

-

148.000

70

-

cm

420.000

-

450.000

162.400

162.425

162.450

162.475

162.500

162.525

162.550

20-419.fm Page 26 Wednesday, March 24, 1999 2:43 PM

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Summary of Contents for 20-419

Page 1: ...Cat No 20 419 OWNER S MANUAL PRO 2049 90 Channel Direct Entry Programmable Scanner Please read before using this equipment 20 419 fm Page 1 Wednesday March 24 1999 2 43 PM ...

Page 2: ...rage Priority Channels let you set the scanner to check up to three channels every 2 seconds so you do not miss important calls Band Search lets you quickly and easily search preset frequency rang es so you can find new and unlisted broadcasts 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 ski...

Page 3: ...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 We recommend you record your scan ner s serial number here The number is on the scanner s ...

Page 4: ...ansmission your scanner can receive However there are some transmissions you should never intentionally 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 Communi cations Privacy Act ECPA you are subject to fines and possible imprison ment...

Page 5: ...Turning On the Scanner Setting Volume and Squelch 17 Resetting the Scanner 17 Manually Storing Frequencies Into Channels 18 Searching For and Temporarily Storing Active Frequencies 19 Band Search 19 Direct Search 20 Listening to Monitor Memories 20 Moving a Frequency from a Monitor Memory to a Channel 21 Deleting a Frequency from a Channel 21 Scanning Channels 21 Manually Selecting a Channel 22 Sp...

Page 6: ... Frequencies 27 United States Broadcast Band 27 Guide to the Action Bands 28 Typical Band Usage 28 Primary Usage 28 Band Allocation 29 Avoiding Image Frequencies 33 Frequency Conversion 33 Troubleshooting 34 Care and Maintenance 35 Specifications 36 20 419 fm Page 6 Wednesday March 24 1999 2 43 PM ...

Page 7: ...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 antenna not supplied to your scan ner Your local RadioShack store sells a variety of antennas Choose the one that best meets your needs When deciding on a base station an ten...

Page 8: ...es 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 The scanner s supplied AC adapter lets you power the scanner from a standard AC outlet To connect power to the scanner insert the AC adapter s barrel plug into the AC 10V jack on the back of the scanner then plug the ...

Page 9: ...can handle at least 2 5 watts of power Your local Ra dioShack store sells scanner accesso ries including 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 HEADPHONES You can connect an optional ear phone or pair of monaural head phones with a 1 8 inch 3 5...

Page 10: ...rphone or headphones adjust OFF VOLUME to a comfortable level Do not listen at extremely high volume levels Extended high vol ume listening can lead to perma nent hearing loss Once you set OFF 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 20 419 fm Page 10 Wednesday March 24 1999 2 43 PM ...

Page 11: ...uency Bands on Page 15 DELAY Programs a 2 second delay for the selected channel PRIORITY Sets and turns on or off priority for a particular channel MONITOR Stores frequencies into and accesses the three monitor memories See Monitor Memories on Page 15 S S LOCKOUT Skips a specified frequency during a band or direct search search skip lockout or locks out selected channels during scanning WEATHER Sc...

Page 12: ...or a frequen cy Use the range of numbers above the key 61 90 for example to select the channels in a channel stor age bank See Channel Storage Banks on Page 15 Also pressing HOLD 0 during a search pauses the scanner CLEAR Clears an incorrect entry or enters the decimal point when you enter a frequency E Enter Stores frequencies into channels See Manually Stor ing Frequencies into Channels on Page ...

Page 13: ... 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 PRI Appears when the priority feature is turned on L O lockout Appears when you skip a channel or frequency when you manually select a channel or frequency that is locked out or skipped or when a frequency is stored i...

Page 14: ...e search direction during a search b Appears instead of the channel number during a band search d Appears instead of the channel number during a direct search H Appears during a band search hold h Appears during a direct search hold 20 419 fm Page 14 Wednesday March 24 1999 2 43 PM ...

Page 15: ...law enforcement agencies such as state police county sheriffs or SWAT teams that use their own frequencies You could program all law enforce ment frequencies starting with Chan nel 1 the first channel in Bank 1 then program the fire department para medic and other public safety fre quencies starting with Channel 31 the first channel in Bank 2 MONITOR MEMORIES Monitor memories are temporary stor ag...

Page 16: ...ore You can store any frequency into a monitor memory You cannot change or delete any of the frequencies in the frequency bands Displayed Frequency Band Range Typical Usage Frequency Coverage MHz Step kHz 29 54 10 Meter Amateur Radio VHF Lo 6 Meter Amateur Radio 29 000 to 54 000 5 0 108 137 Aircraft 108 000 to 136 975 12 5 137 144 Government 137 000 to 144 000 5 0 144 148 2 Meter Amateur Radio 144...

Page 17: ...ockwise If the scanner will not scan turn SQUELCH further clockwise RESETTING THE SCANNER You might need to reset the scanner in any of the following conditions before you use it for the first time to clear anything that might already have been stored in mem ory if the scanner s display locks up if the scanner does not work prop erly after you connect power if the scanner is dropped or sub jected ...

Page 18: ...g the number keys enter the channel number where you want to store a frequency 3 Press PROGRAM B and the bank number the selected channel number and CH PGM L O if the selected channel number is empty and 000 000 or the previously programmed fre quency appear on the display 4 Using the number keys enter the frequency you want to store into that channel including the deci mal point Note Your scanner...

Page 19: ...cur rent monitor memory blinks on the display Then the scanner starts to search the frequencies in the band When the scanner finds a transmission it stops and displays the frequency s number until the transmission stops then it starts searching again 2 To manually search the band press HOLD after the scanner starts automatically searching the frequencies The scanner displays H hold or and a freque...

Page 20: ...d 3 4 When the scanner finds an active frequency you can do any of the following save the frequency into the cur rent monitor memory by press ing MONITOR continue searching or change the search direction by pressing or stop searching and listen to the frequency by pressing HOLD H hold appears To manually step through fre quencies one at a time after you stop a search repeatedly press or To continu...

Page 21: ...es the frequency in the selected channel DELETING A FREQUENCY FROM A CHANNEL 1 If the scanner is scanning press MANUAL 2 Use the number keys to enter the channel number containing the frequency you want to delete 3 Press PROGRAM 4 Press 0 then E The frequency is deleted from the channel To delete a frequency from a monitor memory store a new frequency in that monitor memory SCANNING CHANNELS Note ...

Page 22: ...ng Frequencies Channels on Page 23 MANUALLY SELECTING A CHANNEL You can continuously monitor a spe cific channel without scanning This is useful if you hear an emergency broadcast on a channel and want to hear all the details even though there might be periods of silence or if you want to monitor only a specific chan nel or a locked out channel Follow these steps to manually select a channel 1 Pre...

Page 23: ...ress DELAY during the search DLY appears on the display and the scanner automatically adds a 2 second delay to every transmis sion it stops on To turn off delay on any channel or frequency select that channel or fre quency then press DELAY DLY disap pears SKIPPING FREQUENCIES CHANNELS You can scan channels and search for frequencies faster by skipping ones that have a continuous transmission such ...

Page 24: ...e off see Turning the Key Tone On or Off on Page 25 the scanner does not beep when you hold down LOCKOUT PRIORITY The priority feature lets you scan through programmed channels and still not miss important or interesting calls on specific channels You can program one stored channel in each bank as a priority channel up to 3 to tal As the scanner scans it checks the priority channels in each select...

Page 25: ...ncies to broadcast local forecasts and regional weather information We have preprogrammed your scanner with these frequencies Note For a list of all 7 national weath er frequencies see National Weather Frequencies on Page 26 To scan the preprogrammed weather channels press WEATHER WX appears and the scanner searches the weather channels and stops on an active broad cast If a broadcast is weak pres...

Page 26: ...perators often broadcast emergency information when other means of communication break down The following chart shows the voice frequencies that you can monitor NATIONAL WEATHER FREQUENCIES Wavelength Meters Voice MHz 10 meter 29 000 29 700 6 meter 50 100 54 000 2 meter 144 100 148 000 70 cm 420 000 450 000 162 400 162 425 162 450 162 475 162 500 162 525 162 550 20 419 fm Page 26 Wednesday March 2...

Page 27: ...ake sure that no other nearby radio or TV sets are turned on near the scan ner Use the search function and search every frequency range from its lowest frequency to the highest Occa sionally the searching will stop as if it had found a signal often without any sound That is a birdie Make a list of all the birdies in your scanner for future reference UNITED STATES BROADCAST BAND In the United State...

Page 28: ...teur 144 00 148 00 MHz High Range 148 00 174 00 MHz UHF Band 300 00 MHz 3 0 GHz U S Government 406 00 420 00 MHz 70 Centimeter Amateur 420 00 450 00 MHz Low Range 450 00 470 00 MHz FM TV Audio Broadcast Wide Band 470 00 512 00 MHz Activities Frequencies Government Police and Fire 153 785 155 980 MHz Emergency Services 158 730 159 460 MHz Railroad 160 000 161 900 MHz Activities Frequencies Land Mob...

Page 29: ... Industrial Services Manufacturing Construction Farming Forest Products MAR 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 MOV Motion Picture Video Industry NEW New Mobile Narrow NEWS Relay Press Newspaper Reporters OIL Oil Petroleum Industry POL Po...

Page 30: ...IL 35 020 35 980 BUS PUB IND TELM 36 000 36 230 GOVT MIL 36 230 36 990 Oil Spill Cleanup GOVT MIL 37 020 37 980 PUB IND 38 000 39 000 GOVT MIL 39 020 39 980 PUB 40 000 42 000 GOVT MIL MARI 42 020 42 940 POL 42 960 43 180 IND 43 220 43 680 TELM IND PUB 43 700 44 600 TRAN 44 620 46 580 POL PUB 46 600 46 990 GOVT TELC 47 020 47 400 PUB 47 420 American Red Cross 47 440 49 580 IND PUB 49 610 49 990 MIL...

Page 31: ...130 158 460 BUS IND OIL TELM UTIL 158 490 158 700 TELB 158 730 159 465 POL PUB ROAD 159 480 OIL 159 495 161 565 TRAN 161 580 162 000 OIL MARI RTV 162 0125 162 35 GOVT MIL USXX 162 400 162 550 WTHR 162 5625 162 6375 GOVT MIL USXX 162 6625 MED 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 169 445 169 505 Wireless Mikes GOVT 1...

Page 32: ...ELB 455 050 455 925 RTV 457 525 457 600 BUS 458 025 458 175 MED 460 0125 460 6375 FIRE POL PUB 460 650 462 175 BUS 462 1875 462 450 BUS IND 462 4625 462 525 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 20 in 6 MHz steps 475 750 Channel 14 481 750 Channel 15 487 750 Channel 16 512 000 Channel ...

Page 33: ...nterference on a weak or distant channel from a strong broadcast 42 8 MHz below the tuned frequency This is rare and the image signal is usually cleared whenever there is a broadcast on the actual frequency FREQUENCY CONVERSION The tuning location of a station can be expressed in frequency kHz or MHz or in wavelength meters The following information can help you make the necessary conversions 1 MH...

Page 34: ...etal frames or material in the building Change the scanner s location and try again The scanner s keys do not work The display shows random seg ments The scanner might be locked Reset the scanner See Resetting the Scan ner on Page 17 Scanner does not work at all Check that the power supply is work ing The scanner might be locked Reset the scanner See Resetting the Scan ner on Page 17 Scanner locks...

Page 35: ...elt plastic parts Keep the scanner away from dust and dirt which can cause premature wear of parts Handle the scanner gently and carefully Dropping it can damage cir cuit boards and cases and can cause the scanner to work improperly Wipe the scanner with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong deter gents to clean the scanner Modifyin...

Page 36: ... 5 kHz steps UHF T 470 512 MHz in 12 5 kHz steps Channels of Operation Any 90 channels in any band combinations 30 channels 3 banks and 3 monitor channels Sensitivity 20 dB S N with 3 kHz deviation for FM 60 modulation for AM 29 54 MHz 0 5 µV 108 136 975 MHz 1 8 µV 137 174 MHz 0 6 µV 406 512 MHz 0 6 µV Selectivity 10 kHz 6 dB 16 kHz 50 dB Direct Search Speed Band Search Speed 20 Steps Sec Max Scan...

Page 37: ...ays Nominal Built In Speaker 21 4 Inch 57 mm 8 Ohm Dynamic Type AC Adapter 10 Volts AC Dimensions HWD 21 4 91 4 611 16 Inches 57 235 170 mm Weight without AC Adapter 1 lb 0 6 oz 470 g Specifications are typical individual units might vary Specifications are subject to change and improvement without notice 20 419 fm Page 37 Wednesday March 24 1999 2 43 PM ...

Page 38: ...38 NOTES 20 419 fm Page 38 Wednesday March 24 1999 2 43 PM ...

Page 39: ...39 20 419 fm Page 39 Wednesday March 24 1999 2 43 PM ...

Page 40: ...during 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 un less otherwise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts and products and product...

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