AW: Re: LF: Test signal on 5.33 kHz

[uwe-jannsen@kabelmail.de]

impressive work, Stefan.

Are you back on 2970Hz now?

yesterday at 0830UTC lightning destroyed  the soundcard and the LT1028 of the active abtenna.
but QRV agn, ahm SL acquisition status at times: 34%.

 

73

Uwe/dj8wx

 

Von: DK7FC <selberdenken@posteo.de>
Gesendet: 07.08.2016 14:32
An: <rsgb_lf_group@blacksheep.org>
Betreff: Re: LF: Test signal on 5.33 kHz

 

The experiment was stopped at 12:25 UTC.
The loading coil holds the high voltage. Now i will order another 2 kg
of 0.4mm wire to add more turns...

73, Stefan

Am 07.08.2016 12:20, schrieb DK7FC:
> Hi VLF,
>
> Since 10:08 UTC i'm running a test transmission on 5330 Hz. About 240
> mA antenna current leads to 12 kV across the D.U.T., my new loading
> coil which is intended for 2970 Hz. So far the inductance seems to be
> 1.9 H.
> I want to check if it actually holds the high voltage as to my
> estimation before i continue to add more turns. The estimation is that
> each winding stack has to hold 5 kV. I will then end up somewhere
> between 30 and 40 kV at 2970 Hz...
> An image:
> https://dl.dropboxusercontent.com/u/19882028/VLF/20160807_114115.jpg
>
> If someone wants to check if the signal is detectable in some
> distance....
>
> The signal will be on the air for at least one hour.
>
> 73, Stefan
>