Search results
Results from the WOW.Com Content Network
The United States has 22 Air Route Traffic Control Centers (ARTCC). [1] They are operated by and are part of the Federal Aviation Administration of the U.S. Department of Transportation . An ARTCC controls aircraft flying in a specified region of airspace, known as a flight information region (FIR), typically during the en route portion of flight.
Area control centers (ACCs) control IFR air traffic in their flight information region (FIR). The current list of FIRs and ACCs is maintained by the International Civil Aviation Organization (ICAO). [1] Note that the cited ICAO source gives the shapefile coordinates for each FIR, and also its page source gives a list of current ACCs in text form.
In air traffic control, an area control center (ACC), also known as a center or en-route center, is a facility responsible for controlling aircraft flying in the airspace of a given flight information region (FIR) at high altitudes between airport approaches and departures.
Common traffic advisory frequency (CTAF) is the name given to the VHF radio frequency used for air-to-air communication at United States, and Australian non-towered airports. Many towered airports close their towers overnight, keeping the airport open for cargo operations and other activity.
The system is designed to accommodate air traffic growth and the introduction of new automation functions which will improve the safety and efficiency of the US National Airspace System (NAS). [ 5 ] Airport Surveillance Radar is beginning to be supplemented by ADS-B Automatic dependent surveillance-broadcast in the US and other parts of the world.
In ZBW, the areas are labeled A through E. Area A covers the majority of northeastern New York state. Area A handles a large quantity of traffic that has departed Boston Logan International Airport or other nearby airports, as well as descending arrivals destined to New York metropolitan airports and other airports in ZBW airspace.
In the United States, radio frequencies made available by the Federal Communications Commission for use as UNICOM are: [8] Airports with an Air Traffic Control tower or FSS (Alaska only) on the airport. [8] 122.950 MHz; Airports without an Air Traffic Control tower or FSS on the airport. [8] 122.700 MHz; 122.725 MHz; 122.800 MHz; 122.975 MHz ...
Military aircraft also use a dedicated UHF-AM band from 225.0 to 399.95 MHz for air-to-air and air-to-ground, including air traffic control communication. This band has a designated emergency and guard channel of 243.0 MHz. [2] [8] Radio aeronautical navigation aids use other frequencies.