Re: LF: New VLF Grabber in Darmstadt

[pws <pws@legal-medicine.de>]

Hi Stefan,

You wrote:
> ... Today i want to inform
> you about a new VLF Grabber at the Technical University of Darmstadt,
> http://skmail.ikp.physik.tu-darmstadt.de/gvw/grabber.html run by Christoph
> Maurer who is working in the nuclear science institute. Seems they want to
> observe the VLF spectrum and try to make some earthquake precursors.
> ...

Missing many usual suspects at LF like MSF, 60 kHz or 81 kHz from Inskip 
etc. Instead 45.9 kHz, Sicily, appears at reasonable strength.
May be they are running a loop with E/W-nulls?

Furthermore those typical rise of noise floor from soundcards
running at high sampling rates is visible. So, some 15-20 dB
more gain especially above 30 kHz is recommended.

Peter, Kiel
http://df3lp.de