1. 
   Q code
   The Q code is a standardized collection of three-letter message encodings, also known as a brevity code, all of which start with the letter "Q", initially developed for commercial radiotelegraph communication, and later adopted by other radio services, especially amateur radio. Although Q codes wer...
   Found op http://en.wikipedia.org/wiki/Q_code
   
   
2. 
   Q-Code
   A letter code used by aircraft in requests for information and used in the supply of information to aircraft. Items in the code relate to meteorological information, for example, QFE relates to station-level pressure.
   Found op http://www.bbc.co.uk/weather/weatherwise/glossary/q.shtml
   
   

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