[UK-CONTEST] UK-Contest Digest -Aircraft Reflections

[Ray James]

Yes Ken....fully aware the same properties can be found below 70cm. 
T'was just that my convention talk "Beginner's Guide to DX'ing and Contesting on 70cm and 23cm" and day to day activity is pretty well frequency specific but the information is relevant to lower frequencies I don't operate on.

Not often we can say we're getting something off Ryanair and Easyjet for free! On 23cm tonight I had Ryanair to thank for a contact into Leeds and Easyjet for one into Holland at 763Km. Tomorrow nights UKAC on 13cm will be another opportunity. 

73 Ray GM4CXM. 

--- On Mon, 21/3/11, Ken Eastty <ken.g3lvp at btinternet.com> wrote:

> From: Ken Eastty <ken.g3lvp at btinternet.com>
> Subject: Re: [UK-CONTEST] UK-Contest Digest -Aircraft Reflections
> To: uk-contest at contesting.com
> Date: Monday, 21 March, 2011, 21:38
> Ray,
> 
> Propagation via reflections from aircraft is not limited to
> 70cm & above 
> as I'm sure you realize.
> I can hear GB3ANG beacons on 2 & 4m virtually the whole
> time regardless 
> of 'tropo' conditions (as I type this 'ANG is 1-2 S points
> above noise 
> in a 500Hz BW). Last year when airliers were grounded due
> the 'ash' from 
> the TF volcano I took the opportunity to monitor the
> signals from GB3ABG 
> on 4 & 2m. For most of this period the beacon signals
> were either 
> completely inaudible or occasionally audible right down in
> the noise.
> Once airline flights resumed the beacon signals returned to
> their normal 
> strengths.
> Virtual radar shows that for most of the time there are
> many aircraft in 
> the sector to the west of Manchester, just nicely placed
> midway between 
> my QTH & Dundee. Not surprising that this works,
> Watson-Watt wouldn't be 
> surprised but he didn't have lots of aircraft at FL370
> & above to play 
> with. It makes me think that a lot of VHF QSO's rely on
> this mode of 
> propagation.
> 
> 73...
> 
> Ken
> 
> G3LVP
> 
> 
> > From: Ray James<gm4cxm at yahoo.co.uk>
> > Subject: [UK-CONTEST] Aircraft Reflection
> > To: UK Contesting<uk-contest at contesting.com>
> > Message-ID:<353781.91716.qm at web24108.mail.ird.yahoo.com>
> > Content-Type: text/plain; charset=utf-8
> >
> > Hi all,
> > Following my talk at last years convention and on-air
> activities, I get regular requests for more information on
> the use of aircraft reflection as a means of nabbing some
> nice distant contacts under flat tropo conditions and
> contests on UHF and Microwave bands.
> > Much of the content from the memory stick is retained
> for club talks I do but aircraft reflection appears to be to
> the most popular personal request.
> > I have therefore added a page to my website on the
> operational side of the subject and trust those interested
> will find it useful.
> >
> > http://www.rayjames.biz/gm4cxm/id28.html
> >
> > 73 Ray GM4CXM
> >
> >
> >
> >
> >
> >
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> > End of UK-Contest Digest, Vol 99, Issue 27
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