here is a recording from 1986 (rb) Y3S never transmitted an ID,
so these 2 minutes just give you the sound and the coding, but
no identification
in 1964, Maarten van Delft received an interesting letter with
this nice picture from institute - you see some parts of the
antenna
the above letter gives some interesting
details on the schedules of the 5 MHz time signal stations MSF and HBN
in those days
this letter confirms the
time signals transmitted on 'Stimme der DDR' on longwave 182
kHz (Ary Boender)
from Hans-Friedrich Dumrese,
a verification under the old callsign DIZ from 1971
slightly different version from the files of Wilfried Westrupp
(1971)
this QSL folder still holds the old 'DIZ' callsign (Frank Schüttig)
here a QSL issued by the PTT (Tom Rösner, 1981)
a new version QSL Folder for 'Y3S' with detailed transmission
format (rb, 1984)
------------------------------------------------------------
Callsigns:
DIZ
Y3S
Frequencies Morse Telegraphy:
4525