Some years ago (Ok some 35 years ago) I used to be a very small cog in in high powered VLF transmissions from Antarctica running 100's of Kw at a few KHz -and the memories of my knives, forks and kitchen utensils humming at me whilst eating me ham and eggs whilst the Tx was keyed are fond memories. Sadly that Base (Siple) closed the year of so after I left the continent.
Conditions over the (North) pole were improving but Ive just got another k=4 or more warning so we will see what happens tonight.
> Date: Wed, 13 Nov 2013 12:46:18 +0100
> From:
[email protected]> To:
[email protected]> Subject: Re: LF: VLF KL7L 8.97 kHz
>
> 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
> >>
> >>
>
