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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.
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khz mhz frequency aircraft band channel channels spacing also use audio frequencies radio 33 communication control countries voice transmissions air
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| VOR beacons | instance of | These are reserved for navigational aids | 0.80 | text |
| and precision approach systems such as ILS localizers.As of 2012 | instance of | These are reserved for navigational aids | 0.80 | text |
| most countries divide the upper 19 MHz into 760 channels for amplitude modulation voice transmissions | instance of | These are reserved for navigational aids | 0.80 | text |
| on frequencies from 118 to 136.975 MHz | instance of | These are reserved for navigational aids | 0.80 | text |
| in steps of 25 kHz | instance of | These are reserved for navigational aids | 0.80 | text |
| government agencies | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| commercial company advisory | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| search | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| rescue | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| military aircraft | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| glider | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
| ballooning air-to-ground | instance of | Some channels between 123.100 and 135.950 are available in the US to other users | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.