Frequently Asked Frequencies - 1995

 For an overview of the FCC allocations for the 30 - 1400 MHz
 range, see the file fcc.allocations.
Cellular Telephone                    Railroads
Cordless Telephone                    Marine VHF
Mobile Telephone                      Aeronautical Frequencies
Air to Ground Telephone               Ambulances
800 MHz Air to Ground Telephone       Weather - NOAA broadcasts
Television                            Broadcast Remote Pickup
Cable TV                              Film and Video Production
Citizens Band                         Wireless mikes
FRS - Family Radio Service            Paired Frequencies
GMRS - General Mobile Radio Service   CTCSS (PL) Frequencies 
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Cellular Telephone

        Channels   Frequencies (base)    System      Use
        991-1023   869.040 - 870.000     A - RCC     voice
          1-312    870.030 - 879.360     A - RCC     voice
        313-333    879.390 - 879.990     A - RCC     data
        334-354    880.020 - 880.620     B - Telco   data
        355-666    880.650 - 889.980     B - Telco   voice
        667-716    890.010 - 891.480     A - RCC     voice
        717-799    891.510 - 893.970     B - Telco   voice

  Transmissions are FM (some systems are adding digital).       
  Channels are 30 kHz apart. Mobiles transmit 45 MHz below the
  base (824.040-848.970) and are usually repeated by the base.
  Channels 991-1023 are also identified as Channels 800-832.
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Cordless Telephone                   

       Chan  Base    Handset           Chan    Base    Handset
         1   43.72    48.76            16      46.61    49.67
         2   43.74    48.84            17  B   46.63    49.845
         3   43.82    48.86            18  C   46.67    49.86
         4   43.84    48.92            19      46.71    49.77
         5   43.92    49.02            20  D   46.73    49.875
         6   43.96    49.08            21  A   46.77    49.83
         7   44.12    49.10            22  E   46.83    49.89
         8   44.16    49.16            23      46.87    49.93
         9   44.18    49.20            24      46.93    49.99
        10   44.20    49.24            25      46.97    49.97
        11   44.32    49.28
        12   44.36    49.36          Channels A - E handset frequencies
        13   44.40    49.40          are also used for baby room
        14   44.46    49.46          monitors and low power
        15   44.48    49.50          handy-talkies.


    The original 10 channels were renumbered 16-25 in June 95     
    when the new channels 1-15 were added.    
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Mobile Telephone                             [22.501]

              VHF - 30 kHz spacing          UHF - 25 kHz spacing
    Base:    152.030 - 152.210  RCC        454.025 - 454.350  RCC
             152.510 - 152.810  telco      454.375 - 454.650  telco

    Mobile:  157.770 - 158.070  telco      459.025 - 459.350  RCC
             158.490 - 158.670  RCC        459.375 - 459.650  telco

   Transmissions are FM. Many of these channels may now be used
   for paging, specifically 152.78, which is a nationwide page.
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Air to Ground Telephone        

        Ch      Ground    Airborne
    Signaling   454.675  (459.675)
         6      454.700   459.700
         7      454.725   459.725
         5      454.750   459.750
         8      454.775   459.775
         4      454.800   459.800
         9      454.825   459.825
         3      454.850   459.850
        10      454.875   459.875
         2      454.900   459.900
        11      454.925   459.925
         1      454.950   459.950
        12      454.975   459.975

        Transmissions are FM. Ground stations repeat the airborne
    half of the conversation, and transmit a continuous tone when
    idle. From one to four channels are assigned in a particular
    area. Service is used on private aircraft.
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800 MHz Air to Ground Telephone    

              - -  Airborne  - -

       Block   Ch 1   -  Ch 29
        10   894.0055 - 894.1735
         9   894.2055 - 894.3735
         8   894.4055 - 894.5735          Guard Band -
         7   894.6055 - 894.7735           .x765-.x797
         6   894.8055 - 894.9735
         5   895.0055 - 895.1735          Control Channels -
         4   895.2055 - 895.3735           .x813-.x973
         3   895.4055 - 895.5735
         2   895.6055 - 895.7735
         1   895.8055 - 895.9735

    Transmissions are AM (or AM/SSB), and converting to digital.
    Channels are spaced 6 kHz apart. A specific block of 29 channels
    is assigned to each geographical area. Ground frequencies are 45
    MHz lower and do not echo the airborne half of the conversation.
    Service is used on passenger airlines.
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	______________________________________________________________________
Television 
Cable TV     

Type Ch.       Video         Audio    Type Ch.       Video         Audio
BC   2         55.25         59.75    BC   3         61.25         65.75
BC   4         67.25         71.75    BC   5         77.25         81.75
BC   6         83.25         87.75    BC   7        175.25        179.75
BC   8        181.25        185.75    BC   9        187.25        191.75
BC  10        193.25        197.75    BC  11        199.25        203.75
BC  12        205.25        209.75    BC  13        211.25        215.75
C   14        121.25        125.75    B   14        471.25        475.75
C   15        127.25        131.75    B   15        477.25        481.75
C   16        133.25        137.75    B   16        483.25        487.75
C   17        139.25        143.75    B   17        489.25        493.75
C   18        145.25        149.75    B   18        495.25        499.75
C   19        151.25        155.75    B   19        501.25        505.75
C   20        157.25        161.75    B   20        507.25        511.75
C   21        163.25        167.75    B   21        513.25        517.75
C   22        169.25        173.75    B   22        519.25        523.75
C   23        218.25        221.75    B   23        525.25        529.75
C   24        223.25        227.75    B   24        531.25        535.75
C   25        229.25        233.75    B   25        537.25        541.75
C   26        235.25        239.75    B   26        543.25        547.75
C   27        241.25        245.75    B   27        549.25        553.75
C   28        247.25        251.75    B   28        555.25        559.75
C   29        253.25        257.75    B   29        561.25        565.75
C   30        259.25        263.75    B   30        567.25        571.75
C   31        265.25        269.75    B   31        573.25        577.75
C   32        271.25        275.75    B   32        579.25        583.75
C   33        277.25        281.75    B   33        585.25        589.75
C   34        283.25        287.75    B   34        591.25        595.75
C   35        289.25        293.75    B   35        597.25        601.75
C   36        295.25        299.75    B   36        603.25        607.75
C   37        301.25        305.75    B   37        609.25        613.75
C   38        307.25        311.75    B   38        615.25        619.75
C   39        313.25        317.75    B   39        621.25        625.75
C   40        319.25        323.75    B   40        627.25        631.75
C   41        325.25        329.75    B   41        633.25        637.75
C   42        331.25        335.75    B   42        639.25        643.75
C   43        337.25        341.75    B   43        645.25        649.75
C   44        343.25        347.75    B   44        651.25        655.75
C   45        349.25        353.75    B   45        657.25        661.75
C   46        355.25        359.75    B   46        663.25        667.75
C   47        361.25        365.75    B   47        669.25        673.75
C   48        367.25        371.75    B   48        675.25        679.75
C   49        373.25        377.75    B   49        681.25        685.75
C   50        379.25        383.75    B   50        687.25        691.75
C   51        385.25        389.75    B   51        693.25        697.75
C   52        391.25        395.75    B   52        699.25        703.75
C   53        397.25        401.75    B   53        705.25        709.75
C   54        403.25        407.75    B   54        711.25        721.75
C   55        409.25        413.75    B   55        717.25        721.75
C   56        415.25        419.75    B   56        723.25        727.75
C   57        421.25        425.75    B   57        729.25        733.75
C   58        427.25        431.75    B   58        735.25        739.75
C   59        433.25        437.75    B   59        741.25        745.75
C   60        439.25        443.73    B   60        747.25        751.75
C   61        445.25        449.75    B   61        753.25        757.75
C   62        451.25        455.75    B   62        759.25        763.75
C   63        457.25        461.75    B   63        765.25        769.75
C   64        463.25        467.75    B   64        771.25        775.75
C   65        469.25        473.75    B   65        777.25        781.75
C   66        475.25        479.75    B   66        783.25        787.75    
C   67        481.25        485.75    B   67        789.25        793.75
C   68        487.25        491.75    B   68        795.25        799.75
C   69        493.25        497.75    B   69        801.25        805.75
C   70        499.25        503.75    B*  70        807.25        811.75
C   71        505.25        509.75    B*  71        813.25        817.75
C   72        511.25        515.75    B*  72        819.25        823.75
C   73        517.25        521.75    B*  73        825.25        829.75
C   74        523.25        527.75    B*  74        831.25        835.75
C   75        529.25        533.75    B*  75        837.25        841.75
C   76        535.25        539.75    B*  76        843.25        847.75
C   77        541.25        545.75    B*  77        849.25        853.75
C   78        547.25        551.75    B*  78        855.25        859.75
C   79        553.25        557.75    B*  79        861.25        865.75
C   80        559.25        563.75    B*  80        867.25        871.75
C   81        565.25        569.75    B*  81        873.25        877.75
C   82        571.25        575.75    B*  82        879.25        883.75
C   83        577.25        581.75    B*  83        885.25        889.75
C   85        583.25        587.75    C   86        589.25        593.75
C   87        595.25        599.75    C   88        601.25        605.75
C   89        507.25        611.75    C   90        613.25        617.75
C   91        619.25        623.75    C   92        625.25        629.75
C   93        631.25        635.75    C   94        637.25        641.75
C   95         91.25         95.75    C   96         97.25        101.75
C   97        103.25        107.75    C   98        109.25        113.75
C   99        115.25        119.75    C  100        643.25        647.75
C  101        649.25        653.75    C  102        655.25        659.75
C  103        661.25        665.75    C  104        667.25        671.75
C  105        673.25        677.75    C  106        679.25        683.75
C  107        685.25        689.75    C  108        691.25        695.75
C  109        697.25        701.75    C  110        703.25        707.75
C  111        709.25        713.75    C  112        715.25        719.75
C  113        721.25        725.75    C  114        727.25        731.75
C  115        733.25        737.75    C  116        739.25        743.75
C  117        745.25        749.75    C  118        751.25        755.75
C  119        757.25        761.75    C  120        763.25        767.75
C  121        769.25        773.75    C  122        775.25        779.75
C  123        781.25        785.75    C  124        787.25        791.75
C  125        793.25        797.75    C  126        799.25        803.75

    BC = Both Broadcast and Cable         B  = Broadcast only 
    B* = Reassigned to Cellular, Pub. Ser. C  = Cable only

    Note the gaps between channels 4/5, 6/7, and 13/14.
    Frequencies in the 470-512 MHz range (Ch 14-20) may be assigned to
    Public Service mobile use in major metro areas.  No transmitters
    are allowed on 608-614 MHz (Ch 37).
    Each TV channel is 6 MHz wide. The video carrier is 1.25 MHz
    above the start of the range. The audio carrier is 0.25 MHz below
    the end of the range. Television audio is wideband FM.
    Some TV stations may be offset +/- 10 kHz.

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Citizens Band   

      Ch    Freq       Ch    Freq       Ch    Freq       Ch    Freq
       1   26.965      11   27.085      21   27.215      31   27.315
       2   26.975      12   27.105 *    22   27.225      32   27.325
       3   26.985      13   27.115      23   27.255 -    33   27.335
       4   27.005 *    14   27.125      24   27.235 -    34   27.345
       5   27.015      15   27.135      25   27.245 -    35   27.355
       6   27.025      16   27.155 *    26   27.265      36   27.365
       7   27.035      17   27.165      27   27.275      37   27.375
       8   27.055 *    18   27.175      28   27.285      38   27.385
       9   27.065      19   27.185      29   27.295      39   27.395
      10   27.075      20   27.205 *    30   27.305      40   27.405

   *  26.995, 27.045, 27.095, 27.145, 27.195  =>  Remote Control
      -  note break in sequence  (27.255 shared with R/C)
      Modulation is primarily AM, with some SSB in use.
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FRS - Family Radio Service 

     Ch     Freq          Ch     Freq
      1   462.5625         8   467.5625
      2   462.5875         9   467.5875
      3   462.6125        10   467.6125
      4   462.6375        11   467.6375
      5   462.6625        12   467.6625
      6   462.6875        13   467.6875
      7   462.7125        14   467.7125

    The FRS was authorized on 06 June 96. It uses FM with a peak  
    deviation of +/- 2.5 kHz. Maximum power is 0.5w ERP.              
    Channels 1 - 7 are shared with GMRS.
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GMRS - General Mobile Radio Service        
                                              

             Base/mobile    repeater I/P
              462.5500       467.5500
              462.5625
              462.5750       467.5750
              462.5875
              462.6000       467.6000
              462.6125
              462.6250       467.6250
              462.6375
              462.6500       467.6500
              462.6625
              462.6750       467.6750
              462.6875
              462.7000       467.7000
              462.7125
              462.7250       467.7250

        In addition to the station's licensed channel, 462.675 may
    be used for emergency and traveler's aid by all stations.
    Interstitial channels (462.xxx5) may be used only in simplex
    mode with voice transmissions of no more than 5 watts. They are
    shared with the Family Radio Service.
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Railroads     

        Ch     Freq
         2    159.810
         3    159.930         The channel designation is that
         4    160.050         assigned by the Association of
         5    160.185         American Railroads. Channels 2 thru 6
         6    160.200         are used only in Canada.
         7    160.215         Above channel 6, spacing is 15 KHz.
         8    160.230
        ..    .......
        96    161.550
        97    161.565
              452.325   452.775     Shared with trucking.             
              452.375   452.825     Mobiles 5 MHz higher.             
              452.425   452.875                                       
              452.475   452.900                                       
              452.925               Slave & remote-controlled         
              452.950                locomotives                     
              457.9375              ETM - End of Train Monitors       
              161.115               Norfolk-Southern ETMs 
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Marine VHF                                  
                   
        Ch     Ship             Ch     Ship
                                60    156.025
         1    156.050           61    156.075
         2    156.100           62    156.125
         3    156.150           63    156.175
         4    156.200           64    156.225
        ..    .......           ..    .......
        25    157.250           85    157.275
        26    157.300           86    157.325
        27    157.350           87    157.375
        28    157.400           88    157.425

       Shore stations are 4.600 MHz above the ship frequency. In
    U.S. waters the shore frequency may be used on Channels  20, 24-28 &
    84-87.  Channels  1-5 & 60-64 are shared with other services. Channels  75
    & 76 are reserved as guard bands for channel 16.

       Specific assignments include:
              06    156.300    Inter-ship Safety
              09    156.450    General use by recreational vessels
              13    156.650    Bridge-to-Bridge
              15    156.750    Weather, notices, etc
              16    156.800    General Calling / Distress
              22    157.100    Coast Guard Liaison

    AMTS - Automated Maritime Telecommunications System  

    Transmit frequencies  (@ 25 kHz intervals)

         Group    Channels              Coast                 Ship
            D   101-120    216.0125 - 216.4875    - - -      - - -
            C   121-140    216.5125 - 216.9875    - - -      - - -
            B   141-160    217.0125 - 217.4875   219.0125 - 219.4875
            A   161-180    217.5125 - 217.9875   219.5125 - 219.9875
      Ship transmit frequencies in groups C & D are not authorized.
      Coastal stations in groups C & D are not currently assignable.

    On-board Communications:                          

        Ch     mobile    repeater
         1    467.750    457.525
         2    467.775    457.550
         3    467.800    457.575
         4    467.825    457.600
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Aeronautical Frequencies 

        108.000 - 117.950    NavAids - VOR & localizer, 50 kHz step
        118.000 - 121.400    ATC - towers & ARTCC
        121.600 - 121.925    ATC - airport ground control
        122.000 - 122.650    Flight Service Stations,   50 kHz step
        122.700 - 123.500    * (see below)
        123.600 - 128.800    ATC - towers & ARTCC
        128.825 - 132.000    En route - airline company frequencies
        132.025 - 135.975    ATC - towers & ARTCC
        136.000 - 136.475    En route - international
        136.500 - 136.975    En route - domestic & international

            25 kHz default spacing,  AM for voice

   UNICOM - Aeronautical advisory station at airport 

        122.700   122.725
        122.800   123.000
        122.950              at airport w/ full-time tower
        122.975              above 10,000'
        123.050   123.075    at heliports

   Multicom - common freq. at uncontrolled facilities  
      
        122.850
        122.900              primary CTAF
        122.925              Fed/State natural resources

   FSS - FAA Flight Service Stations      

        122.000   122.050    EFAS "Flight Watch"
        122.100              receive only (w/VOR)
        122.200              standard FSS
        123.600   123.650    AAS Airport Advisory Svc

   Aviation Support - training, gliders, balloons, etc 

        121.950
        123.300   123.500
        122.775   122.850    aviation services

   Misc.
        121.500              standard emergency freq.,  ELTs
        123.100              Search And Rescue - actual
        122.900              Search And Rescue - training
        123.100              control tower at special events
        122.825   122.875    En route airline ops - local area
        122.750              air-to-air - private aircraft
        123.025              air-to-air - helicopter
        131.550              ACARS - digital (airlines)
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Ambulances           
             Hospital   Ambulance
    Med-9     462.950    467.950        Med-9 and Med-10 may be
    Med-10    462.975    467.975        used for dispatch.
    Med-1     463.000    468.000
    Med-2     463.025    468.025
    Med-3     463.050    468.050        Med-1 thru Med-8 are
    Med-4     463.075    468.075        assigned as a block and
    Med-5     463.100    468.100        any channel may be used.
    Med-6     463.125    468.125
    Med-7     463.150    468.150
    Med-8     463.175    468.175

    HEAR   155.340   Intersystem   (Hospital Emergency Ambulance Radio)
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Public Safety Intersystem            

    Police                                               
       39.46   intersystem operations only
       45.86   intersystem operations only
      155.370  (widely used, but not a Federal allocation)
      155.475  statewide emergency nets
      173.075  stolen vehicle recovery (LoJack)
      154.665 .680 .695 }  State Police
      154.905 .920 .935 }  coordinated
      155.445 .460 .490 }  operations

    Fire                                                  
       45.88   intersystem, primarily base-mobile
      154.265 .280 .295  mutual aid

    Emergency Medical                                     
      155.340  HEAR - Hospital Emergency Ambulance Radio
      460.525 .550  inter/intra system w/ Police & Fire
         (also see FAF-Ambulances for MED channels)

    Public Safety - all
      220.8025-220.8475  Mutual Aid (5 kHz intervals)      
      866.0125 .5125 }
      867.0125 .5125 }  Mutual Aid                      
      868.0125       }

    (mobile frequencies:  220 +1 MHz;  460 +5 MHz;  860 -45 MHz)
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Weather - NOAA broadcasts     
        Ch     Freq.
         1    162.550            161.650  }  Environment Canada
         2    162.400            161.775  }    (marine weather)
         3    162.475
         4    162.425
         5    162.450            The weather alert signal is          
         6    162.500            a 1050 kHz tone for ~5 seconds.         
         7    162.525
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Broadcast Remote Pickup                

             25.87  -  26.45   @  20/40 kHz intervals
            152.87  - 153.35   @  60 kHz intervals
            161.64  - 161.76   @  30 kHz intervals
            450.050 - 450.850  }  @  50/100 kHz
            455.050 - 455.850  }     intervals

Film and Video Production                      

            152.87   152.90   152.93   152.96   152.99   153.02
            173.225  173.275  173.325  173.375

Wireless mikes                                        

            169.445  169.505  170.245  170.305
            171.045  171.105  171.845  171.905
            plus unused FM/TV broadcast channels  
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Dot Frequencies                        

     Dot color                          Other
      Red       151.625  itinerant       "J" Dot      467.7625
      Purple    151.955                  "K" Dot      467.8125
      Blue      154.570                  Silver Star  467.850
      Green     154.600                  Gold Star    467.875
      White     462.575  GMRS            Red Star     467.900
      Black     462.625  GMRS            Blue Star    467.925
      Orange    462.675  GMRS
      Brown     464.500  itinerant
      Yellow    464.550  itinerant

    "Dot" stickers are used by the manufacturer or distributor to
    indicate the frequency of otherwise identical transceivers. They
    are often found in rental inventories and on construction sites.
    Additional itinerant frequencies include 27.49, 35.04, 43.04,
    151.505, 158.400, 469.500 and 469.550 MHz.
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Paired Frequencies                               

    Base/Repeater mobile i/p      offset       
    152-152 MHz   157-158 MHz     +5.26 MHz     (Taxi)                
                                  +5.26/+6.46   (Mobile Phone)        
    160-162       156-157         -4.6          (Marine VHF)          
    217-218       219-220         +2            (Marine AMTS)         
    220-221       221-222         +1                                  
    422-425       427-430         +5            (Great Lakes border)  
    450-465       455-470         +5            (10 MHz segments)     
    470-509       473-512         +3            (6 MHz segments)      
    851-896       806-851        -45                                  
    935-940       896-901        -39                                  
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CTCSS (PL) Frequencies            
    Freq    Designator     Freq    Designator     Freq    Designator 
    (Hz)     EIA  Ham      (Hz)     EIA  Ham      (Hz)     EIA  Ham
     67.0    L1   01       110.9    2Z   15       179.9    6B   29
     71.9    L2   02       114.8    2A   16       186.2    7Z   30   
     74.4    WA   03       118.8    2B   17       192.8    7A   31   
     77.0    L3   04       123.0    3Z   18       203.5    M1   32   
     79.7    SP   05       127.3    3A   19       206.5    8Z
     82.5    L4   06       131.8    3B   20       210.7    M2   33   
     85.4    YA   07       136.5    4Z   21       218.1    M3   34   
     88.5    L4A  08       141.3    4A   22       225.7    M4   35   
     91.5    ZZ   09       146.2    4B   23       229.1    9Z        
     94.8    L5   10       151.4    5Z   24       233.6    M5   36   
     97.4    ZB   11       156.7    5A   25       241.8    M6   37   
    100.0    1Z   12       162.2    5B   26       250.3    M7   38   
    103.5    1A   13       167.9    6Z   27       254.1    OZ        
    107.2    1B   14       173.8    6A   28
                                                                     
        Motorola differs from EIA with:  XZ (L1), XA (L2), XB (L3),  
    YZ (L4), YB (L4A), ZA (L5). ICOMM does not use 97.4 and uses one
    less than the amateur numbers above that (i.e. ICOM #25 = 162.2).