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Re: VLF: Local VLF tests...

To: [email protected]
Subject: Re: VLF: Local VLF tests...
From: Stefan Schäfer <[email protected]>
Date: Mon, 09 Apr 2012 01:08:07 +0200
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PS: Eddie, my experimental CDF VLF grabber is locked to GQD/22.1 kHz. You know the waves sometimes become terminated so the S/N of that reference may be to weak sometimes. So there may be some phase glitches on the grabber that haven't actually happened.

73, Stefan

Am 09.04.2012 00:36, schrieb Stefan Schäfer:
Hi Eddie,

I don't think this is my signal. The DFCW shift is 3 mHz, so my upper frequency is 8969.98150 Hz. BTW my FFT and scroll rate settings are the same as used in the typical DFCW-6000 SL instance used by many VLF Grabber operator, like yours :-) So it should be easy to compare the traces.

Unfortunately the upload of my normal LF and VLF grabber is off now. However you can follow the transmission in the 424 uHz window at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html One call takes about 3 days :-) Soon i will try QRO and DFCW-60000, just for fun :-)

Good luck anyway and thanks for watching for the weak signal.

73, Stefan/DK7FC


Am 08.04.2012 11:49, schrieb qrss:
Stefan

There is a common start / finish minute on the dots in the att.capture.HH.m3 to the best of my measurement ability, they certainly coincide with your TX periods.

73 Eddie G3ZJO

Grabber:- http://g3zjo.bplaced.net/index.htm

Also :- http://www.g3zjo.talktalk.net/vlfgrabber.htm

On 08/04/2012 08:20, Stefan Schäfer wrote:
Hi Gerhard,

Yes, of course. I just meant the "official" researchers who do that work as their job to earn money and (have to) publish their work on conferences and in various papers. For them it is important to be "the first" one who describes a phenomen. We are in the situation to do what we want to do, just for fun and extremely relaxed :-) If our work is "new" then it is fine and if it is "re-inventing the wheel" then it is fine too :-)

73, Stefan/DK7FC

Am 07.04.2012 15:51, schrieb Gerhard Hickl:
Stefan !

I think WE ARE researchers in some way. Maybe not all of us do have the
theoretical background which is "necessary" do to "real" research
(whatever that means) but sometimes I think this could be an advantage.

73
OE3GHB
Gerhard







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