Search results
Results From The WOW.Com Content Network
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 ...
The following is a list of full-power radio stations, HD Radio subchannels and low-power translators in the United States broadcasting Air1 programming, which can be sorted by their call signs, frequencies, city of license, state and broadcast area. Blue background indicates a low-power FM translator. Gray background indicates an HD Radio ...
Airband or aircraft band is the name for a group of frequencies in the VHF radio spectrum allocated to radio communication in civil aviation, sometimes also referred to as VHF, or phonetically as "Victor". Different sections of the band are used for radionavigational aids and air traffic control. [1] [2] [3]
Before 1 October 2002 it was known as the Global High Frequency System (GHFS). HFGCS stations tend to operate in the aviation bands clustered around 5, 6, 8 and 11/12 MHz, although other frequencies are in use.
The aircraft emergency frequency (also known in the USA as Guard) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress.The frequencies are 121.5 MHz for civilian, also known as International Air Distress (IAD), International Aeronautical Emergency Frequency, [1] or VHF Guard, [1] and 243.0 MHz—the second harmonic of VHF guard—for military ...
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.
Automatic terminal information service, or ATIS, is a continuous broadcast of recorded aeronautical information in busier terminal areas.ATIS broadcasts contain essential information, such as current weather information, active runways, available approaches, and any other information required by the pilots, such as important NOTAMs.
In 1917 AT&T invented the first American air-to-ground radio transmitter. They tested this device at Langley Field in Virginia and found it was a viable technology. [ 5 ] In May 1917, General George Squier of the U.S. Army Signal Corps contacted AT&T to develop an air-to-ground radio with a range of 2,000 yards.