On 10th of December 1909 Prof. F. Braun and G. Marconi received
Nobel Prize for Physics at
Stockholm. Both gentlemen were honored for their developments in
the field of wireless
communication.
On the 100th anniversary of this occasion the Prof. Braun Day
(DL0PFB) makes a special
transmission with the longwave transmitter DDH47 (147,3 kHz) of
National Weather Service
Deutscher Wetterdienst.
On the night before Nobelday (9. December 2009) the transmitter is
available for 2 hours ( 23
- 01 UTC).
All people are invited to listen to the telegraphic transmissions
of DDH47 und radio
amateurs may contact DL0PFB on shortwave in cw only. DL0PFB
answers to calls on the
declared frequencies and keys DDH47 sometimes in parallel.
During silence periods (h+15-18 and h+45-48) of former maritime
radio service, there is ultra
slow keying ( 1 dot in 3 seconds ) for long distance tests. The
names of famous wireless
pioniers will be keyed in that time for prove of receiption!
Prof. Braun Day issued a special QSL card, contacts are exchanged
via DARC Bureau or
direct, when followed certain circumstances:
(Deutschland SASE, Europe postage 2 US Dollars, overseas postage 4
US Dollars, No IRC)
Contact: Prof. Braun Day, c/o J. Gerpott, Rebhuhnweg 21, 22880
Wedel, Germany
When: 9. Dezember 2009, 2300 UTC until 10. Dezember 2009, 0100
UTC
Transmit : DDH47 147,3 kHz und DL0PFB : ( 3565, 7025, 14052 kHz
+/- qrm),
Receive : DL0PFB only shortwave, see above
QRS3 : hourly +15 bis +18, and +45 bis +48, ulta slow keying 1 Dot
in 3 Seconds
Receiption reports are welcome, especially from overseas !
Internet:
