Jim
I find the majority of Grabbers are a poor guide to reception. I am able to
see and work stations that are not visible on the majority of Grabbers
around EU.
and those that are visible are generally very weak except they are local to
the Grabber.
This applies mostly to 137 Khz, and fortunately since I work in QSO mode
only and get direct reports I do not need Grabbers.
Beacon mode operators are at a disadvantage.
de G3KEV
----- Original Message -----
From: "James Moritz" <[email protected]>
To: <[email protected]>
Sent: Monday, January 24, 2011 5:48 PM
Subject: LF: Re: What freq. list can you recommend
> Dear Jurgen, LF Group,
>
> As well as the frequency listings mentioned, there are several on-line
> "grabbers" showing spectrograms of VLF signals in near real-time. These
are
> very useful to see if other people are receiving the same signals as you
> are, or if what you see is actually local QRM of various kinds. In DL for
> example there is DF6NM's grabber page at
> http://www.mydarc.de/df6nm/vlf/vlfgrabber.htm, and DK7FC's
> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html both
> currently in regular use. In the UK, Paul Nicholson maintains plots of the
> VLF spectrum at http://abelian.org/vlf/spectrum.shtml with an extended
> frequency range from 0 - 85kHz. There is also live streaming audio from
the
> lower "natural radio" part of the spectrum from this site.
>
> Cheers, Jim Moritz
> 73 de M0BMU
>
>
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