VOR DME MAY (Mayfield) - High Hurstwood, East Sussex, UK - Ground Based Air Navigation Support Structures on Waymarking.com

VOR DME aircraft navigation aid located High Hurstwood and Fairwarp in East Sussex, within the High Weald Area of Outstanding Natural Beauty. It operates at 117.9MHz and is used for high- and low-level enroute navigation.

The name, Mayfield, is inherited from the town of Mayfileld, 6 miles (10km) to the east.

The structure is located within private farmland and behind a locked gate, which means it is not possible to get any closer than 160m to the navaid.

The general principal of VOR technology is to have two seperate 30Hz modulations on the VHF transmissions from the VOR station. The VOR is arranged such that one of the 30Hz signals remains in the same phase at all reception positions around the VOR (Reference signal). The other 30Hz signal received (Variable signal) will differ in phase by exactly the angular displacement of the receiver around the VOR from the Zero radial. The aircraft receiver demodulates the two 30Hz signals and simply compares their phase difference.

DME is a secondary radar system which determines slant distance between aircraft and ground station.

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Reference: [Web Link] NavAid Type: Radio Frequency

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