Message-ID: <38740255.E470F291@netscapeonline.co.uk>
Date: Wed, 05 Jan 2000 18:47:49 -0800
From: "g3kev" <g3kev@netscapeonline.co.uk>
Organization: Netscape Online member
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To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: The 137.0 signal ??? more
References: <3.0.1.16.20000105105623.2c7f712a@mail.cc.kuleuven.ac.be>
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Hi All. The signal on 137 khz. I have heard this signal before. Yesterday it was
about S5 about 1500/1700 utc and then it was about S8 during the evening
1900/2200utc. It could be spurious from another signal on lf. Those with df loops
might be able to give, at least a direction.
The commercial operators could locate it precisely. A simple system like SSL
would be able to give a distance and location. Does anyone have this facility or
know of one who has.
At  this frequency a couple of simple loop antennas or more dispersed around
europe could give a fairly accurate fix. No speculation needed.


Rik Strobbe wrote:

> I monitored the 137kHz 'mistery signal' last night :
> 1. Although it sounds RTTY-like I cannot see any mark /space lines with GRAM
> 2. It came out of the noise arround 21.30UT and built up (with some QSB
> periods) until 23.00UT (when I went to bed). I left the ON5OO software
> running all night (from 22UT until 08UT) the signal was still there (and
> loud) at that time.
> I will have a look at the data from the ON5OO software tonight.
>
> At 21:43 4/01/00 -0000, you wrote:
> > Hi all, the mystery grows deeper...I enclose a copy of an e-mail from
> >Jon...
> >--------------------------------------------------
> >Well, I can confirm that this is *not* CFH.  Our transmitter is
> >still powered off.  I had to call the site as all I have here is again
> >wideband noise.  It is drizzling and when you walk by the high-voltage
> >transmission lines, you can actually hear the water accumulated on the
> >insulators fizzing off.  I can't wait to move out to the countryside!
> >................................
> >
> >Best wishes, Jon - VE1FTL
> >------------------------------------------------------
> >Mmmm interesting.... we know from some other comments that there are other
> >stations on that frequency....but to my remembrance they were located on the
> >West Coast, San Diego way I think!!
> >The signal is already visible on my display (2130z) but I forgot to activate
> >a scroll back so I can't look to see when it appeared first. I was too busy
> >watching 'Horizon' . The modulation is certainly not what we are used to
> >seeing from CFH. It is either a more complex data mode or maybe Fax. I have
> >a display of a band of 'noise dots' about 60Hz wide at its present weaker
> >strength. Not a bit like RTTY which gives two distict lines for the mark and
> >space freqs.
> >Any other ideas??
> >Cheers de Alan G3NYK JO02PB
> >Alan.Melia@btinternet.com
> >
> >
> >
> >