Stefan schreef:
jan olieslagers schrieb:

-) where can I find a complete and authorative list of the Q-codes to
be used in aviation R/T?

I don't think the official documents are on the internet, but there are
a couple of private sites with lists. A German one:
http://www.htc.ch/de/der_Q_code.htm

Beautiful!
quoteDie Q-Codes werden zu Fragen, wenn ihnen ein Fragezeichen
folgt./quote
my translationQ-codes become questions when followed by a question
mark/tr
This irreproachable logic can only stem from the military.

I only hope I need not know the full list by heart for the radio exam!