a recording from 2012 of
NV's morse signal, with Lille *LL
in the background (rb)
these 2 approach charts for Amsterdam airport date from 1981...
...and were sent to Rudy van Dalen in 1982
Ary Boender made this fine picture in 2008
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Callsigns:
NV
Frequencies Morse Telegraphy:
332
352