Voice remains the primary and controlling air/ground communications means. The CPDLC's principal operating criteria are: As a flight progresses from one sector to another, the pilot is requested to change to the appropriate sector discrete frequency.Ĭontroller Pilot Data Link Communications ( CPDLC) is a system that supplements air/ground voice communications.
Each sector is handled by one or a team of controllers and has its own sector discrete frequency. Flight plan filing, en route weather, weather forecasts, and similar data should be requested through FSSs, company radio, or appropriate military facilities capable of performing these services.Īn ARTCC is divided into sectors. Since IFR operations are expedited through the use of direct communications, pilots are requested to use these frequencies strictly for communications pertinent to the control of IFR aircraft. Although they may be several hundred miles away from the ARTCC, they are remoted to the various ARTCCs by land lines or microwave links. These sites are located throughout the U.S. Maximum communications coverage is possible through the use of Remote Center Air/Ground ( RCAG) sites comprised of both VHF and UHF transmitters and receivers. ARTCCs are capable of direct communications with IFR air traffic on certain frequencies.Direct Communications, Controllers and Pilots.FAA Form 7233−4 International Flight Plan UAS Pilot Testing, Certification and Responsibilities.Aeronautical Charts and Related Publications.Bird Hazards and Flight Over National Refuges, Parks, and Forests.Cold Temperature Barometric Altimeter Errors, Setting Procedures and Cold Temperature Airports (CTA).Barometric Altimeter Errors and Setting Procedures.Aircraft Rescue and Fire Fighting Communications.National Security and Interception Procedures.Pilot/Controller Roles and Responsibilities.Operational Policy/Procedures for the Gulf of Mexico 50 NM Lateral Separation Initiative.Operational Policy/Procedures for Reduced Vertical Separation Minimum (RVSM) in the Domestic U.S., Alaska, Offshore Airspace and the San Juan FIR.Radio Communications Phraseology and Techniques.