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Re: VLF: 8970 Hz transmissions, soon again here

To: <[email protected]>
Subject: Re: VLF: 8970 Hz transmissions, soon again here
From: "Markus Vester" <[email protected]>
Date: Sat, 26 Nov 2011 17:55:37 +0100
Cc: "Paul" <[email protected]>
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Once more, Paul Nicholson is showing a good trace:
 
 
... well done!
 
Markus
 
Sent: Saturday, November 26, 2011 4:33 PM
Subject: Re: VLF: 8970 Hz transmissions, soon again here

Stefan,
 
around 15:00, your sig on 8970.008 was visible in Nuernberg, peaking ~ 20 dB SNR in 0.48 mHz.
 
Viel Glück,
Markus (DF6NM)

Sent: Saturday, November 26, 2011 3:57 PM
Cc: Paul
Subject: Re: VLF: 8970 Hz transmissions, soon again here

VLF,

I'm now running 350W into the system and get about 0.8 A antenna
current. Strong audible partial discharges occurr on a parallel fixed
plate capacitor, spaced by 3 cola bottles (0.33l ;-) ). At 550 mH i have
25 kV rms on the antenna and coil which seems to be no problem at all.

The frequency is still a bit unstable since i took the DDS VFO which is
more comfortable to find the resonance. I will now try to slightly QRO
and then apply a fiber optic cable carrying the GPS locked frequency
coming from the PC/SpecLab, hopefully without to many phase glitches.
Currently i may have an offset of some 20...30 mHz and a slight drift
but it is a first successfully test :-)

73, Stefan/DK7FC


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