Distance measuring equipment: Difference between revisions
Jump to navigation
Jump to search
(Created page with '=Distance Measuring Equipment= A '''DME''' is a transponder-based radio navigation technology that measures distance by timing the propagation delay of VHF or UHF radio signals. …') |
No edit summary |
||
| Line 1: | Line 1: | ||
=Distance Measuring Equipment= | =Distance Measuring Equipment= | ||
A '''DME''' is a transponder-based radio navigation technology that measures distance by timing the propagation delay of VHF or UHF radio signals. [[http://en.wikipedia.org/wiki/Distance_measuring_equipment|Wikipedia]] | A '''DME''' is a transponder-based radio navigation technology that measures distance by timing the propagation delay of VHF or UHF radio signals. [[http://en.wikipedia.org/wiki/Distance_measuring_equipment|Wikipedia]] | ||
* A radio pulse takes around 12.36 microseconds to travel 1 nautical mile (1,852 m) to and from; this is also referred to as a radar-mile. | |||
* The aircraft interrogates the ground transponder with a series of pulse-pairs (interrogations) and, after a precise time delay (typically 50 microseconds), the ground station replies with an identical sequence of reply pulse-pairs. | |||
===Related=== | |||
* [[VOR-DME]] | |||
Revision as of 00:07, 4 June 2010
Distance Measuring Equipment
A DME is a transponder-based radio navigation technology that measures distance by timing the propagation delay of VHF or UHF radio signals. [[1]]
- A radio pulse takes around 12.36 microseconds to travel 1 nautical mile (1,852 m) to and from; this is also referred to as a radar-mile.
- The aircraft interrogates the ground transponder with a series of pulse-pairs (interrogations) and, after a precise time delay (typically 50 microseconds), the ground station replies with an identical sequence of reply pulse-pairs.