Re: LF: RE: DK7FC's 3rd VLF transmission

[Gary - G4WGT <g4wgt@tiscali.co.uk>]

Hi All,

Running SpecLab here using Marcus's 3.8mHz 60s configuration, with 0.8M loop with battery powered op-amp (OP27) pre-amp into sound card.

Good Luck Stefan,

73, Gary - G4WGT.

On 21 March 2010 11:07, Dave G3WCB <ganymede444@btopenworld.com> wrote:

Dear all.

 

I'm also set up to receive on 8970 hz now....although I don't know how effective it will be.  I have resonated my 137 kHz TX antenna with a 1 H inductor, and I can hear the 11.905 Alpha station clearly. I measure it as -70 dBm in a 24Hz bandwidth using W&G SPM-30.

 

Good luck!

 

73, Dave G3WCB IO91RM, nr Windsor, S.E. England  

-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Markus Vester
Sent: 21 March 2010 10:49
To: rsgb_lf_group@blacksheep.org
Subject: VLF: DK7FC's 3rd VLF transmission

Dear LF,

 

just talked to Stefan, and he said he will start a little later than expected, probably sometime after 13:00 UT. He also confirmed that the frequency will be 8970 (not 8790) Hz.

 

Best wishes, and keeping fingers crossed...

 

Markus

 

----- Original Message -----

From: Wolfgang Büscher

To: rsgb_lf_group@blacksheep.org

Sent: Sunday, March 21, 2010 8:50 AM

Subject: Re: AW: VLF: DK7FC's 3rd VLF transmission

Greetings all,

Just getting ready for a field trip and checked the mail again:

Stefan wrote:
> Hello Nicolas, Dreamers,
> 
> Just start with DFCW-600 on 8,79000 kHz.

Really 8.790 kHz now, or center frequency again at 8.970 kHz as in the
last test ? Markus, can you confirm the frequency ? Guess the latter is
the right frequency, since Markus' spectrogram is also centered on 8970
Hz, not 8790 :

http://www.mydarc.de/df6nm/vlf/vlfgrabber.htm

I will leave my VLF stream (via Paul's server) running from home for a
some time, see http://abelian.org/vlf/
Not sure if I will have internet access at the remote site to check it,
and not even sure if the compression (which is involved in the audio
streaming) will leave such signals intact. Anyway, we'll see.

73,
  Wolf  - DL4YHF/p from JO42FD or JO42FC soon (depending on the noise
level found at various sites) .