Aviation Frequencies (General)

 

121.500 - Emergencies
122.000 - Flight Advisory Service
122.200 - Flight Service Stations
122.700 - Unicom - Uncontrolled airports
122.725 - Unicom - Private airports
122.750 - Unicom - Air-to-air communications
122.800 - Unicom - Uncontrolled airports
122.900 - Search & resuce training, & uncontrolled airports
122.950 - Unicom - Controlled airports
123.000 - Unicom - Uncontrolled airports
123.025 - Helicopters - Air-to-air communications
123.050 - Unicom - Heliports
123.075 - Unicom - Heliports
123.100 - Search & Rescue
123.300 - Flight Schools
123.450 - Air-to-air communications (unofficial)
123.500 - Flight Schools
123.600 - Flight Service Stations - Uncontrolled airports
148.125 - Civil Air Patrol Repeaters - Secondary
148.150 - Civil Air Patrol Repeaters - Primary
156.300 - Aircraft-to-ship - safety
156.400 - Aircraft-to-ship - commercial
156.425 - Aircraft-to-ship - non-commercial
156.450 - Aircraft-to-ship - commercial
156.625 - Aircraft-to-ship - non-commercial
156.900 - Aircraft-to-ship - commercial
243.000 - Military Emergency "Guard"
255.400 - Flight Advisory Service
257.800 - Civilian Towers
311.000 - SAC Primary
321.000 - SAC Secondary
381.800 - USCG - Primary

 

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    Enroute - airline company freqs
        132.025 - 135.975    ATC - towers & ARTCC
        136.000 - 136.475    Enroute - international
        136.500 - 136.975    Enroute - 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, ballons, 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    Enroute airline ops - local area
        122.750              air-to-air - private arcft
        123.025              air-to-air - helicopter
        131.550              ACARS - digital (airlines)