Hi Laurence,
They installed a 2.5 MW wind power plant exactly where i've done my
experiments in 2010/11. Obviously it is a good QTH when you need wind
:-) So i cannot use that QTH any more. I would need to find a new one.
I don't want to say that the VLF times are over for me, maybe there will
come another season sometime. A lot can be done! :-)
What about your location in AK? Is there no chance that YOU begin to do
some TX experiments, by using an "earth antenna" (uuuh, some excitement
grows in me when thinking back)? You should have the place to install a
very long one! You just need some wire, maybe 1...2mm diameter and some
100m long. A dipole would be interesting. Maybe you can use it for other
bands as well! If i would live close to a forest, a lonely forest (here
they seem to clean it and cut some trees here and there to sell them
periodically!), i would have such an antenna and i would add 100m pieces
to the ends from time to time :-)
With 700m wire and 250 W RF power i made 45km in DFCW-600. So if the
dipole ends are close to your home QTH (actually you can use a simple
long wire, not a dipole, then you will need just one /p ground made of
earth rods), then you can run 1 or 2 kW (or 3 :-) ) and your home earth
system is the first end of the radiator. 2 kW against 250W is +12 dB.
Since you are not limited in time (like me, when beeing /p with that
small generator), people can try in "DFCW-60000" or 47 uHz! Another 20
dB! :-)
And if you use a 7000m wire, is it then 10x the loop area? Would that be
another 20 dB? :-)
Maybe you can gain VE7BDQ or VE7TIL (you remember?) and some other
stations in a range below 1000 km for first tests! :-)
BTW without the need for a loading coil of several 100 mH there is no
sound that nerves the XYL so it's very friendly to all :-)
Give it a try! +100m each week!
And keep us informed about the progress!
73, Stefan/DK7FC
Am 13.11.2013 06:14, schrieb Laurence KL7 L:
Subject: VLF DK7FC ?
Stefan – is there any (any?) chance we can persuade you to goto your favorite field
location and shove up the Kite again over the winter period for another run at VLF over the
Pole – Ive improved my s/n here down in the lower reaches and you never know?
Thanks
Long haul up here at the moment is just awful – pretty auroras and snow….
Laurence (and others!) kl7l
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