Observatoire de Paris :
the CQ call from FTH42 before the start of the time signals, recorded 1981 (rb)
Maarten van Delft received this letter in 1965, accompanied...
...by these 2 pictures from the time laboratory.
this QSL card from Ary Boender verifies all daily transmissions that could be received in 1983
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Callsigns:
FTA83
FTH42
FTK77
FTN87
Frequencies Voice:
10775
Frequencies Morse Telegraphy:
84
7428
10775
13873