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Radio beacons: Difference between revisions
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Distance Measuring Equipment ('''[[DME]]''') uses the same frequencies as a VOR. A DME tells the equipment on board of the aircraft the distance towards the transponder. It is two-way communication between the equipment on-board and the DME station to calculate the result. | Distance Measuring Equipment ('''[[DME]]''') uses the same frequencies as a VOR. A DME tells the equipment on board of the aircraft the distance towards the transponder. It is two-way communication between the equipment on-board and the DME station to calculate the result. | ||
While a VOR can be a stand-alone beacon, a DME will be paired with a VOR, a '''VOR-DME'''. Both senders will contain information about the other and tuning will be automatic. | While a VOR can be a stand-alone beacon, a DME will be paired with a VOR, a '''VOR-DME'''. Both senders will contain information about the other and tuning will be automatic. If the VOR station fails it defaults to a stand alone DME. | ||
For position finding only one VOR-DME station is needed since it gives the radial towards the station and the distance. Knowing the position of the VOR-DME station on the map will give the position of the aircraft on that map. | For position finding only one VOR-DME station is needed since it gives the radial towards the station and the distance. Knowing the position of the VOR-DME station on the map will give the position of the aircraft on that map. | ||