Hi Dex,

anyway I've temporarily moved two 21 uHz instances from 5.17 to 8.54 kHz. 
http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm
(scroll down about 80% of the page). It's a long shot from you to east Bavaria but maybe something will show up in 13 hour FFT integrations. Let's also pray for some sunshine in Heidelberg.

Yes we've also experienced that tinnitus-like effect after 8 kHz transmissions. It's indeed a bit eery, but furtunately seems to go away after a few hours.  

73 and good luck,
Markus

-----Ursprüngliche Mitteilung-----
Von: Dexter McIntyre W4DEX <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 2. Dez 2017 16:19
Betreff: Re: LF: W4DEX at 8540 Hz in Todmorden

On Sat, Dec 2, 2017 at 9:13 AM, Markus Vester <[email protected]> wrote:

We'll need to set up new grabber instances at DL0AO for your frequency. Or would you consider QSYing into the "waterhole" near 8270 Hz?

Markus (DF6NM)

Markus,

Transmissions will be very sporadic so don't bother with an additional grabber.  I'll see if I can get down to 8270 without much time invested.  Lots of irons in the fire.  Just wanted to take advantage of the rusty copperweld wires before they break.  When that happens it's party over.

Nice to hear the coil sing once again.  Funny that when I turn the signal off I still hear it.  Maybe instead of being funny I should be concerned :)

 

73,

Dex