Hello Toni,
Am 16.02.2011 17:39, schrieb HB9ASB:
A 100 to 300m Kite antenna. Wow. I would like to learn
more about it. Do you have a picture?
Oh well, there are many many pictures at:
http://www.qrz.com/db/DK7FC The bottom pictures of this page shows my
LF coil on a black PE barrel, about 2.3 mH when using the 100m antenna.
It has a tap now at 650 uH if i remember correctly :-)
For the latest pictures see :
http://mkorbit.de/2010/12/05/weltrekord-signalubertragung-auf-einer-langstwelle-vlf/
and http://mkorbit.de/2011/02/08/signalubertragung-auf-langstwelle-vlf/
If you have further questions, just ask :-)
73, Stefan
Hope you get well soon. Have a quick recovery!
73 de Toni
2011/2/16 Stefan Schäfer <[email protected]>
Hello Tony,
Currently i'm ill and have to stay in bed for some days. So i shouldn't
go out in the field in the weekend when there is strong wind and
cold... You know i'm using a 100m or 300m kite vertical antenna /p. So
i hope to find a suitable day within february. I will inform you then,
a day before, or two.
Tnx for the chance!
73, GL, Stefan
Am 16.02.2011 15:42, schrieb HB9ASB:
Hello Stefan
End of February it's all over and we go back to our shacks with the
tiny antennas. May be we will get an opportunity to use the tower
later, as I understand they will leave it as national heritage. The
next possibilities for a sked in CW is tomorrow evening. My friends
Iacopo and Claude-Alain will be at the station and I could advise them
by Email or phone. Or Friday early in the evening.
73 de Toni
2011/2/16 Stefan Schäfer <[email protected]>
Hi Toni,
Am 16.02.2011 14:08, schrieb HB9ASB:
Thanks Rik
I've read somewhere that DCF39 has 40kW EIRP. So we would have around
4W EIRP. Last week a station measured our field strength, 100km away
and came to 0.4WEIRP. This is probably a little bit to low. Anyway, it
shows me again, that most amateurs overestimate their ERP. Even Mal has
probably not the Watt he claims ;-)
73 de Toni
Yes, maybe that applies for me too ;-)
BTW, Toni, i would like to try a sked on 137/137 in CW from JN49IS36VH
with you if you are interested. When do you have to make QRT on that
antenna? Can't you ask them just to let the antenna arranged as it is,
for amateur purposes!? :-)
73, Stefan/DK7FC
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