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RadioShack Pro 74 Vhf Uhf Race Scanner Reciever Owners Manual

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    							41 Chan-
    nel 
    No.Frequency Chan-
    nel 
    No.Frequency
    Ship Shore Ship Shore
    Birdie Frequencies
    Every scanner has birdie frequencies. Birdies are signals created in-
    side the scanner’s receiver. These operating frequencies might inter-
    fere with broadcasts on the same frequencies. If you program one of
    these frequencies, you hear only noise on that frequency. If the inter-
    ference is not severe, you might be able to turn 
    SQUELCH clockwise to
    cut out the birdie. The birdie frequencies (in MHz) found in this scanner
    are:
    19 156.9500 156.9500 79 156.9750 156.9750
    20 157.0000 161.6000 80 157.0250 157.0250
    21 157.0500 157.0500 81 157.0750 157.0750
    22 157.1000 157.1000 82 157.1250 157.1250
    23 157.1500 157.1500 83 157.1750 157.1750
    24 157.2000 161.8000 84 157.2250 161.8250
    25 157.2500 161.8500 85 157.2750 161.8750
    26 157.3000 161.9000 86 157.3250 161.9250
    27 157.3500 161.9500 87 157.3750 161.9750
    28 157.4000 162.0000 88 157.4250 157.4250
    31.2000 41.6000 52.6000 116.0375
    171.2500 410.0000 430.0000 480.4750
    489.1875 489.2500 489.3500 489.4500
    489.5000 813.4000 814.0000 932.6000
    932.8250 938.3750 940.9000
    Chan-
    nel 
    No.Frequency Chan-
    nel 
    No.Frequency
    Ship Shore Ship Shore
    20-513.fm  Page 41  Wednesday, August 4, 1999  2:39 PM 
    						
    							42
    To find the birdies in your particular scanner, begin by disconnecting the
    antenna and moving it away from the scanner. Make sure that no other
    nearby radios or TVs are turned on near the scanner. Use the search
    function to search every frequency range from its lowest to the highest
    frequency. Occasionally, the searching will stop as if it had found a sig-
    nal, often without any sound. That is a birdie. Make a list of all the birdies
    in your scanner for future reference.
    GUIDE TO THE ACTION BANDS
    Typical Band Usage
    VHF Band
    Low Range 29.00–50.00 MHz
    6-Meter Amateur 50.00–54.00 MHz
    U.S. Government 137.00–144.00 MHz
    2-Meter Amateur 144.00–148.00 MHz
    High Range 148.00–174.00 MHz
    UHF Band
    U.S. Government 406.00–420.00 MHz
    70-cm Amateur 420.00–450.00 MHz
    Low Range 450.00–470.00 MHz
    FM-TV Audio Broadcast, 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 866.00–868.93 MHz
    High Range 896.11–902.00 MHz
    33-Centimeter Amateur 902.00–928.00 MHz
    Private Trunked 935.00–940.00 MHz
    General Trunked 940.00–941.00 MHz
    Fixed Services 941.00–944.00 MHz
    Studio-to-Transmitter Broadcast Links 944.00–952.00 MHz
    Private Fixed Services, Paging 952.00–956.00 MHz
    20-513.fm  Page 42  Wednesday, August 4, 1999  2:39 PM 
    						
    							43
    Primary Usage
    As a general rule, most of the radio activity is concentrated on the fol-
    lowing frequencies:
    VHF Band
    UHF Band
    Note:
     Remote control stations and mobile units operate at 5 MHz high-
    er than their associated base stations and relay repeater units.
    BAND ALLOCATION
    To help decide which frequency ranges to scan, use the following list-
    ing of the typical services that use the frequencies your scanner re-
    ceives. These frequencies are subject to change, and might vary from
    area to area. For a more complete listing, refer to the book “Beyond
    Police Call,” available 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Conventional/Trunked SystemsActivities 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-Mobile “Paired” Frequencies 450.000–470.000 MHz
    Base Stations 451.025–454.950 MHz
    Mobile Units 456.025–459.950 MHz
    Repeater Units 460.025–464.975 MHz
    Control Stations 465.025–469.975 MHz
    20-513.fm  Page 43  Wednesday, August 4, 1999  2:39 PM 
    						
    							44
    FIRE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Fire Department
    HAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio
    GOVT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government
    GMR  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio
    GTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked
    IND  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Police Department
    PUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services
     . . . . . . . . . . . .  (Public Safety, Local Government, Forestry Conservation)
    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 Companies)
    TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cordless Phones
    TELM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Telephone Maintenance
    TOW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Tow 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 FREQUENCY (VHF)
    VHF Low Band — (29.7–50 MHz — in 5 kHz steps)
    29.900–30.550  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
    30.580–31.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, PUB
    32.000–32.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
    33.020–33.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB
    34.010–34.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
    35.020–35.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM
    36.000–36.230  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
    36.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup
    36.270–36.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  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
    20-513.fm  Page 44  Wednesday, August 4, 1999  2:39 PM 
    						
    							45
    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, TELC
    6-Meter Amateur Band — (50–54 MHz)
    50.00–54.00  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
    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, MAR, MIL
    150.775–150.790  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
    150.815–150.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup
    150.995–151.475  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ROAD, POL
    151.490–151.955  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, BUS
    151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  TELM
    152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
    152.030–152.240  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
    152.270–152.480  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS
    152.510–152.840  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
    152.870–153.020  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV
    153.035–153.725  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, OIL, UTIL
    153.740–154.445  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PUB, FIRE
    154.490–154.570  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, BUS
    154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup
    154.600–154.625  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS
    154.655–156.240  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED, ROAD, 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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
    20-513.fm  Page 45  Wednesday, August 4, 1999  2:39 PM 
    						
    							46
    166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE
    166.275–169.400  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, BIFC
    169.445–169.505  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT
    169.55–169.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
    170.000–170.150  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE
    170.175–170.225  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT
    170.245–170.305  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Wireless Mikes
    170.350–170.400  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  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 FREQUENCY (UHF)
    U. S. Government Band (406–420 MHz)
    406.125–419.975  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, USXX
    70-cm Amateur Band (420–450 MHz)
    420.000–450.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
    Low Band (450–470 MHz)
    450.050–450.925  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV
    451.025–452.025  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, TELM, UTIL
    452.0375–453.00  . . . . . . . . . . . . . . . . . . . . . . .  IND, TAXI, TRAN TOW, NEWS
    453.0125–454.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, OIL
    454.025–454.975  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
    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 69 in 6 MHz steps)
    475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14
    481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15
    487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    511.750  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20
    Note:
     Some cities use the 470–512 MHz band for land/mobile service.
    20-513.fm  Page 46  Wednesday, August 4, 1999  2:39 PM 
    						
    							47
    Conventional 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 Safety Band – Locally Assigned
    866.0125–868.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
    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 MHz (million) = 1,000 kHz (thousand)
    To convert MHz to kHz, multiply the number of megahertz by 1,000:
    9.62 (MHz) x 1000  = 9620 kHz
    To convert from kHz to MHz, divide the number of kilohertz by 1,000:
    2780 (kHz) ¸ 1000 = 2.780 MHz
    To convert MHz to meters, divide 300 by the number of megahertz:
    300 ¸ 7.1 MHz = 42.25 meters
    20-513.fm  Page 47  Wednesday, August 4, 1999  2:39 PM 
    						
    							48
    TROUBLESHOOTING
    If you have problems, here are some suggestions that might help. If
    none do, take your scanner to your local RadioShack store for as-
    sistance.
    PROBLEM POSSIBLE CAUSE REMEDY
    Keys do not work or 
    display changes at 
    random.Undetermined error. Reset the scanner (see 
    “Resetting the Scanner” 
    on Page 49).
    Scanner is on but 
    will not scan.SQUELCH is not 
    correctly adjusted.Adjust SQUELCH clock-
    wise.
    Only one channel or 
    no channels are 
    stored.Store frequencies into 
    more than one channel.
    Scanner is totally 
    inoperative.No power. Check the batteries or 
    make sure the scanner 
    is plugged into a working 
    AC or DC outlet.
    Be sure the adapter’s 
    barrel plug is fully 
    plugged into the 
    POWER jack.
    Recharge the recharge-
    able batteries or replace 
    the non-rechargeable 
    batteries.
    The scanner’s dis-
    play dims or the 
    scanner sounds a 
    tone every 15
    –30 
    seconds.Batteries are not 
    correctly installed.Make sure the batteries 
    are installed with the 
    proper polarity (+ to + 
    and – to –).
    Batteries are low. Recharge the recharge-
    able batteries or replace 
    the non-rechargeable 
    batteries.
    Keypad does not 
    work.The keylock func-
    tion is activated.To turn off the keylock, 
    press KEYLOCK until 
    K/L disappears.
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    							49
    BATT.Lo  appears.The batteries are 
    weak.Recharge rechargeable 
    batteries, or replace non-
    rechargeable batteries.  PROBLEM POSSIBLE CAUSE REMEDY
    RESETTING THE SCANNER
    If the scanner’s display locks up or does not work properly after you
    connect power, you might need to reset the scanner. 
    Caution:
     This procedure clears all the information you have stored into
    the scanner (such as frequencies and car numbers). Before you reset
    the scanner, try turning it off and on to see if it begins working properly.
    Reset the scanner only when you are sure it is not working properly.
    1. Turn off the scanner.
    2. While you hold down the 
    2 and 9 keys, turn on the scanner. 
    If you still have problems after resetting the scanner, take it to your lo-
    cal RadioShack store.
    Poor or no recep-
    tion.Batteries are weak 
    or dead.Check the batteries, or 
    make sure the scanner 
    is plugged into a working 
    AC or DC outlet.
    Error appears. Frequency entered 
    incorrectly.Re-enter the frequency 
    correctly, including the 
    decimal point.
    While scanning, the 
    scanner locks on 
    frequencies that 
    have an unclear 
    transmission.Stored frequencies 
    are the same as 
    “birdie” frequencies.Avoid storing frequen-
    cies listed under “Birdie 
    Frequencies” on 
    Page 41, or only listen to 
    them manually.  PROBLEM POSSIBLE CAUSE REMEDY
    20-513.fm  Page 49  Wednesday, August 4, 1999  2:39 PM 
    						
    							50
    CARE AND MAINTENANCE
    Your RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz Race
    Scanner is an example of superior design and craftsmanship. The fol-
    lowing suggestions will help you care for your scanner so you can en-
    joy it for years. 
    Keep the scanner dry. If it gets wet, wipe it dry immedi-
    ately. Liquids can contain minerals that can corrode the
    electronic circuits.
    Use only batteries of the required size and recommended
    type. Always remove old and weak batteries. They can
    leak chemicals that destroy electronic circuits.
    Handle the scanner gently and carefully. Dropping it can
    damage circuit boards and cases and can cause the
    scanner to work improperly.
    Use and store the scanner only in normal temperature
    environments. Temperature extremes can shorten the
    life of electronic devices, damage batteries, and distort or
    melt plastic parts.
    Keep the scanner away from dust and dirt, which can
    cause premature wear of parts.
    Wipe the scanner with a damp cloth occasionally to keep
    it looking new. Do not use harsh chemicals, cleaning sol-
    vents, or strong detergents to clean the scanner.
    Modifying or tampering with your scanner’s internal components can
    cause a malfunction, invalidate the scanner’s warranty, and void your
    FCC authorization to operate it. If your scanner is not operating as it
    should, take it to your local RadioShack store for assistance.
    20-513.fm  Page 50  Wednesday, August 4, 1999  2:39 PM 
    						
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