Q code definition[PDF]
The Q code is a standardized collection of three-letter message encodings initially developed for commercial radiotelegraph communication, and later adopted by other radio services.
They start with the letter "Q".
Although Q codes were created when radio used Morse code exclusively, they continued to be employed after the introduction of voice transmissions.
Q code in aeronautics
|QFE||Atmospheric pressure at a specified datum such as airfield runway threshold.|
|QNH||Atmospheric pressure at mean sea level (may be either a local, measured pressure or a regional forecast pressure (RPS)).|
|QNE||Indicated altitude at the landing runway threshold when 1013.25hPa (or 29.92inHg) is set in the altimeter’s Kollsman window.|
|QDM||Magnetic bearing to a station (ex: VOR)|
|QDL||Series of bearings taken at regular intervals|
|QDR||Magnetic bearing from a station|
|QFU||Magnetic bearing of the runway in use|
|QGE||Controlled descent through clouds|
|QGH||Controlled descent through clouds|
|QTE||True bearing from a station|
|QTF||Position in relation to a point of reference or in latitude and longitude|
|QUJ||True bearing to a station|
- VID 150259 - Creation
- VID 256272 - Wiki integration
- VID 150259 - Update January 2020
DATE OF SUBMISSION
- 13:43, 27 January 2020
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