061539z Apr 2003, 17996,0
kHz, A1A (by ti25)
a
short QSL letter for the 66,66 kHz signal of RBU (Patrick Robic,
1997)
this nice QSL came in 1998 (by ti25)
another nice QSL edition, issued 2001 (Vladimir Rozhkov)
a very colorful QSL card from 2004 (Frank Schüttig)
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Callsigns:
RBU
RWM
Frequencies Morse Telegraphy:
66.66
4996
9996
14996
17996