Search results
Results from the WOW.Com Content Network
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.
Aircraft follow these pre-defined routes to complete a flight plan. Airways are numbered and standardized on charts. Colored airways are used for low to medium frequency stations like the NDB and are charted in brown on sectional charts. Green and red airways are plotted east and west, while amber and blue airways are plotted north and south.
Pilots can find RCO frequencies in charts or publications such as the Chart Supplement or Canada Flight Supplement. [1] The RCO is used to make a radio call to the outlet as if the pilot were making the call directly to the FSS or FIC. The outlet will relay the call (and the briefer's response) automatically.
US frequency allocations chart, 2016. Frequency allocation (or spectrum allocation) ... Aircraft 108–136 1 Land mobile (EU) 120–160 0.1 Land mobile 132–174
There are also CTAF(R) landing strips which require the aircraft intending to enter the area of operation to be fitted with a radio. The most common CTAF frequency is 126.7 MHz [1] at non-towered aerodromes, except for when two CTAF airports are near each other. Aerodromes using CTAF outside tower hours typically nominate a frequency that is ...
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 ...
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 primary HFGCS voice frequencies are 4724.0 kHz, 8992.0 kHz, 11175.0 kHz, and 15016.0 kHz.
VOR/DME symbol used on aeronautical charts. During the mid-1960s, ICAO began the process of introducing a standardized radio navigation system for medium-area coverage on the order of a few hundred kilometres. This system would replace the older Low-frequency radio range and similar systems used