a 'historic' recording from 1972, made in New Hampshire, USA
(rb)
another historic recording,
from 1983, made by Rudy van Dalen while in Philadelphia, PA,
USA
220711z Jan 2002, 7335,0
kHz J3E-U (by ti25)
the QSL card from 1971 (rb)
a fine QSL card from the collection of Frank Schüttig
this QSL dates from 2001 (Tom Rösner)
Check yourself the website
of the National Research Council !
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Callsigns:
CHU
Frequencies Voice:
3330
7335
7850
14670