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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]
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz ). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication. To prevent interference between different users, the generation and transmission of radio ...
Shortwave (HF radio) is used by transoceanic aircraft for communications with air-traffic control centers out of VHF radio range. Most countries with HF citizens'-band allocations use 40 or 80 channels between approximately 26.5 MHz and 27.9 MHz, in 10 kHz steps. Due to antenna-length requirements and the band's long-distance propagation ...
Remote communications outlets ( RCO) are remote aviation band radio transceivers, established to extend the communication capabilities of Flight Information Centres (FIC) and flight service stations (FSS). Pilots can find RCO frequencies in charts or publications such as the Chart Supplement or Canada Flight Supplement. [1]
Air-to-ground communication. The earliest communication with aircraft was by visual signalling, ground-to-air only. Air-to-ground communication was first made possible by the development of two-way aerial telegraphy in 1912, soon followed by two-way radio. By the Second World War, radio had become the chief medium of air-to-ground and air-to ...
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012). [3]In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is within the responsibility of the appropriate national administration.
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. Pilots use the tower frequency to coordinate their ...
Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth, either the vessel or an obstruction. [1] [2] Like radiolocation, it is a type of radiodetermination . The basic principles are measurements from/to electric beacons, especially.