From: g4gvw <g4gvw@aol.com>
To: rsgb_lf_group@blacksheep.org
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	 <AANLkTi=chbDySSJR=D2_453gDhjwgxZ8D19xS=GOF5hE@mail.gmail.com>
	 <007b01cb7a91$ceb8df60$4001a8c0@lark>
Date: Wed, 03 Nov 2010 00:04:30 +0000
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Subject: Re: LF: The Wideband Noise
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And also, Alan, with tongue firmly in cheek. the almost "naturelle"
antipathy that arises when the gallic  and anglo-saxon races attempt to
equably interface " sur le chanel anglais"

"Vive la difference"! "Vive la France!" Vive l'Ros Bif!"

( 'Owever we only need une souse. Mintte Souse Uber alles! Et le moutard
de Colemans met de frittes (sans mayo) et pannekuiken.) 

On Tue, 2010-11-02 at 13:28 +0000, Alan Melia wrote:
> Whoa hardly an intrusion we are not a primary user we have to take what
> interference they give. Some seem to forget this is not an amateur band it
> is commercial spectrum and we have an experimental permit. Also the noise
> increase showed on your plot is minimal ~1dB .....speclab is extermenly
> sensitive....what you are showing would probably be regarded as
> insignificant.
> 
> I think this may be the French taking their normal stance of not wanting to
> rely on US satellites and systems and trying to mollify
> redundancy-threatened radio engineers :-))  cf  Loran-C. :
> 
> Alan
> 
> ----- Original Message ----- 
> From: "Gary - G4WGT" <g4wgt@tiscali.co.uk>
> To: <rsgb_lf_group@blacksheep.org>
> Sent: Tuesday, November 02, 2010 11:50 AM
> Subject: Re: LF: The Wideband Noise
> 
> 
> > Hi John & LF,
> >
> > The screen shot attached shows an average strength of the 498 to 502kHz
> > signal here in NW England (IO83QO). QSB has an effect on the signal which
> > continues throughout the darkness periods.
> >
> > This intrusion into the UK 500kHz band makes reception difficult.
> >
> > 73,
> >
> > Gary - G4WGT.
> >
> >
> >
> > On 1 November 2010 23:37, John P-G <gm4slv@sighthound.demon.co.uk> wrote:
> >
> > > Hello,
> > >
> > > I've had some correspondence with John G3WKL and Colin G3PSM about the
> > > new "commercial" wideband data noise that occupies 498-502kHz
> > >
> > > It seems to be a test of an impending data system for marine use.
> > >
> > > Colin would like some information about where, and when, it can be
> > > heard or otherwise detected. It appears to be being driven by the
> > > French.
> > >
> > > Forthe record I can hear it here in Shetland. It faded up tonight at
> > > approx 1615 UTC and is audible and visible on a waterfall display.
> > >
> > > I haven't been in a position to DF it, but in the first instance Colin
> > > would like to gather some information about where it is being received.
> > >
> > > I can collate the information for him if anyone who is affected by, or
> > > can simply detect, this noise/data signal could give details either
> > > direct, or via the LF group. I know a lot of discussion has been had
> > > already, but a quick note now could be useful, as there is a meeting
> > > soon to discuss this, and other aspects of WRC2012.
> > >
> > > Cheers,
> > >
> > > John
> > > GM4SLV
> > >
> > >
> >
> 
> 
-- 
73 es gd dx de pat g4gvw
 qth nr felixstowe uk
(east coast, county of suffolk)