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Air traffic radio frequencies11/6/2023 Ramp Control - Used by large airline operations usually at hub airports.Airlines will usually have an Operations frequency at their hub airports as well. This frequency is used by aircraft to contact the airline's local airport staff when "in range" and on the ground. Operations - At an airline's non-hub airports, this is the main (and frequently the only) frequency used.Maintenance - At airports where the airline has a large operation and/or a maintenance base, this frequency may be used to directly contact maintenance personnel at the airport.Load Planning - Used by legacy carriers at the airline's hub airports.Dispatch frequencies are also used to contact maintenance staff at the airline's headquarters. Dispatch frequencies are used to contact the airline's dispatch staff which is usually located at the airline's headquarters. Sometimes the Dispatch and Operations frequencies are the same at a given airport. Dispatch - Many carriers have their own dispatch frequencies but some use the ARINC En Route Service instead as needed.There are several different uses for company frequencies by airlines: Please note that "common" frequencies are less likely to be valid in busier air traffic areas due to frequency congestion (e.g., the northeast USA and mid-Atlantic USA regions). There are no official "national" company frequency allocations, however among larger airlines there are common frequencies that you will find used by each at many different airports. ARINC continues to operate a VHF radio network (the ARINC En Route Service) which is used mostly by smaller airlines to relay messages to their dispatchers or to establish phone patches. (ARINC) used to be the spectrum manager for company frequencies but after a corporate reorganization, ASRI is now the spectrum manager. The primary users of these frequencies are airlines but they are also used by Fixed Base Operators (FBOs), corporate aviation bases, some medevac services and other entities.Īeronautical Radio, Inc. ASRI licenses all the frequencies with the FCC and assigns them to other users, so unfortunately the FCC data only provides part of the story but it is a start. More specific info can be found at: Aircraft Frequencies Aircraft Emergency/Distressĭomestic VHF/Operational Control ("Company Frequencies") Spectrum ManagementĪviation Spectrum Resources, Inc. Departure Control ( TRACON) - Routes air traffic immediately upon takeoff via a preferential departure route (PDR) leading away from the departure airport as the aircraft ascends to the en route phase of flight.ġ18.000 - 121.950 Air Traffic Control (See AirNav)ġ21.975 - 123.650 Unicom, multicom, Flight Services, Traffic Advisory (CTAF) at uncontrolled airportsġ23.675 - 128.800 Air Traffic Control (See AirNav)ġ28.825 - 132.000 Company Airlines Operational Controlġ32.025 - 136.475 Air Traffic Control (See AirNav)ġ36.500 - 136.975 Company Airlines Operational Control.Approach Control ( TRACON) - Directs several lines of descending aircraft into one smooth flowing line of aircraft as their courses take them closer to the destination airport.Once the aircraft leaves the airspace of the airport, the pilot will be handed off to a controller at a TRACON (Terminal Radar Approach Control) or an ARTCC Center (Air Route Traffic Control Centers), commonly called Air Traffic Control). Tower - The Tower Controller is responsible for the aircraft in the immediate area around the airport (Up to 3000 feet and 5 miles from the airport).Ground Control - The ground controller tells the pilot which taxiways to use to arrive at the correct runway.Clearance Delivery - The pilot uses this frequency to notify a controller of his flight intentions and to receive flight instructions and clearance for take-off.
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