[UK-CONTEST] Aircraft reflections -more

Dave Sergeant dave at davesergeant.com
Mon Jun 11 01:44:17 PDT 2012


Also 'Flare Spot' by G3BGL, Jan/Feb 1971, effectively a follow up on 
his original articl.

73 Dave G3YMC

On 11 Jun 2012 at 9:31, Rob Harrison wrote:

> Hi,
> 
> There's another one more recently, where the author used GB3ANG, I
> think, and showed some waterfall diagrams in the article. Whether that
> will help or not I'm not sure, but worth a look. Sorry I can't remember
> the year, but it's in the 2000's.
> 
> Bob G8HGN
> 
> ----- Original Message ----- 
> From: "Clive Whelan" <clive at gw3njw.net>
> To: "UK Contest Reflector" <uk-contest at contesting.com>
> Sent: Monday, June 11, 2012 12:07 AM
> Subject: [UK-CONTEST] Aircraft reflections -more
> 
> 
> > Please excuse this way OT question, but it does sort of relate to some
> > stuff that was exchanged here a while back about aircraft reflections
> > on VHF.
> >
> > It will probably take a G3 to remember this, but probably in the '60s
> > there was an article in the Bulletin as was, which studied aircraft
> > refelctions from a 2m beacon, and offered a mathematical proof, that
> > the minimum of the chuff chuff effect occurred when source and
> > aircraft were on the periphery of a common ellipse. This matters to a
> > number of us ( bored contesters !) who are studying Doppler aircraft
> > reflections in WSPR mode on 6m, where the Doppler minimum also
> > corresponds to the minimum observed chuff chuff amplitude.
> >
> > I'd really like to access that original article if anyone has a
> > recollection of it
> >
> > 73
> >
> >
> > Clive
> > GW3NJW
> >
> > -- 
> > ( de GW3NJW )
> >
> > _______________________________________________
> > UK-Contest mailing list
> > UK-Contest at contesting.com
> > http://lists.contesting.com/mailman/listinfo/uk-contest 
> 
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