Re: LF: DK7FC's 2nd VLF TX test...

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Do we have firm confirmation of the reception of Stefan's 8.97kHz signals at distance yet? From the evidence seen so far this looks likely, but it would be good to have the details confirmed for the record books and to satisfy the sceptics. Even Mal may have a go on 8.9kHz if this test transmission was as successful as it appears, HI.

What was the final TX and antenna arrangement and what did those who received the signals use for antennas and receivers?

73s
Roger G3XBM

2010/3/14 Stefan Schäfer <schaefer@hst.tu-darmstadt.de>

...will be most probably tomorrow, the 15. March.

Due to best wind forecasts, no rain and moderate temperatures i plan to do my 2nd VLF TX test in the afternoon on 8,9700 kHz. It is the first time that the new coil is tested. The variometer part and shielding paint hasn't been attached yet but it will not take much time.

Perhaps there will be some resonating problems but i do not expect them. I try to measure the antenna current and/or the voltage.

The TX starting time is not exactly sure but perhaps arround 14 UTC. Hopefully one can see something on the DF6NM's VLF grabber.

Bernd/DF8ZR will be QRV in abt 16km Distance.

Marco/DD7PC, will you be QRV in the evening? Our QRB is 53km, that would be a moderate distance ;-)

Bernd told me that many stns have become QRV in the last weeks in the local region. They will be informed by him and maybe they produce some nice screenshots.

Maybe i do not reach the full planned 20kV rms but it will be more than the 1,6kV from the last test ;-)

So, hpe to report something new from the VLF front next :-)

vy 73, Stefan/DK7FC

-- 

http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/G3XBM
G3XBM    GQRP 1678      ISWL G11088