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LF: RE: Crossing the Alps on the 46 km band

To: <[email protected]>
Subject: LF: RE: Crossing the Alps on the 46 km band
From: <[email protected]>
Date: Mon, 23 May 2016 10:02:49 -0400
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Nice work, I think of 510 km at 6.47 kHz as a new frontier in part because 
modal (Hollingworth) effects are so sensitive to (everything?) at distances and 
frequencies in that neighborhood. LWPC and other VLF modeling tools may at best 
provide a rough estimate of seasonal averages in that realm. Adding the Alps to 
your configuration makes your result a valuable first for propagation studies, 
in my opinion.


Jim AA5BW    

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of DK7FC
Sent: Saturday, May 21, 2016 10:06 AM
To: [email protected]; Renato Romero
Subject: VLF: Crossing the Alps on the 46 km band


I managed to leave a trace on Renato Romereos updated VLF dreamers grabber 
spectrogram at
The 510 km path crosses the alps, see
There is a clear trace at 6470.0000 Hz with an estimated SNR of up to 15 dB. It 
would be possible to send my call in DFCW-60000 i think.
My carrier is running since 21:30 UTC last night and is still on the air. Most 
likely i will continue to run it until 4 UTC tomorrow, then i'm starting a new 
EbNaut message.
The grabber has proved to run stable and sensitive, an invitation for other 
stations beeing able to transmit on 8.27 kHz or 6.47 kHz.

73, Stefan

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