339km Aircraft Scatter 1kW station

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pe1etr
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339km Aircraft Scatter 1kW station

Post by pe1etr »

https://youtu.be/nIE45GXtf5E

Peter Wilson
Botswana

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jotagarzon
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Re: 339km Aircraft Scatter 1kW station

Post by jotagarzon »

Hi Peter,
How can I make the difference between Metteor and plane scatter. Any clue for this?
Thank you.
Jorge
Jorge Garzón. EB7EFA / EA1036 SWL
IN83ag Cantabria (Spain) / 43°15'N • 3°56'W
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Rx: RSP1A/AirSpy HF+/Lowe HF 150/Sony SA3-ES-EE
Ant.: Fanfare FM-2G/Wellbrook 1530LN/5el SKT Yagi
Blog: http://iberiadx.wordpress.com

pe1etr
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Re: 339km Aircraft Scatter 1kW station

Post by pe1etr »

Hello Jorge,
Aircraft scatter builds slowly, becomes strong then decays slowly. Total duration is around two minutes. Meteor scatter is usually shorter duration and starts and/or ends suddenly. Meteor scatter tends to be longer distances than aircraft scatter.

Peter

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John Faulkner, Skegness
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Re: 339km Aircraft Scatter 1kW station

Post by John Faulkner, Skegness »

Here is an example of aircraft scatter.

https://youtu.be/n5FDI76TaJ0

This video starts right at the peak. You can see the mirror image right at the top of the peak.

Franco Martelli
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Re: 339km Aircraft Scatter 1kW station

Post by Franco Martelli »

And what about the differences between Aircraft Scatter and Troposcatter?
Rxs: Degen DE-1103, Sangean ATS-909, Tecsun PL-398 MP

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John Faulkner, Skegness
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Re: 339km Aircraft Scatter 1kW station

Post by John Faulkner, Skegness »

That's a tricky one to answer. The only recollection I have of anything like troposcatter would probably be from the old band 1 TV DX days when transmitters like Grunten would propagate at carrier level. That would probably be too far for aircraft scatter. It would be an almost constant signal with a little fluttery fluctuation. I guess the fact that the signal would stick around for longer would also be an indicator that it was troposcatter. Ionoscatter was very similar, just from further away at a typical Es distance. 'Fluttery but constant' you might say. Does anybody have any other/better explanations?

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jotagarzon
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Re: 339km Aircraft Scatter 1kW station

Post by jotagarzon »

Right! That's very interesting indeed. I am going to open a new thread with a few questions I have, trying to get answers before the exercise this Sunday morning.
And, what about this. I suppose everything is MS!!!! https://youtu.be/Gfz5FGRANQ8

¡Saludos!
Jorge
Jorge Garzón. EB7EFA / EA1036 SWL
IN83ag Cantabria (Spain) / 43°15'N • 3°56'W
--
Rx: RSP1A/AirSpy HF+/Lowe HF 150/Sony SA3-ES-EE
Ant.: Fanfare FM-2G/Wellbrook 1530LN/5el SKT Yagi
Blog: http://iberiadx.wordpress.com

satnipper
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Re: 339km Aircraft Scatter 1kW station

Post by satnipper »

Troposcatter is the default propagation mode for vhf/uhf signals which are received beyond the line of sight. It probably accounts for most QSOs on 2m/70cm in contests where there is no Sp E or tropospheric lift on.

Stuart

Franco Martelli
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Re: 339km Aircraft Scatter 1kW station

Post by Franco Martelli »

John Faulkner, Skegness wrote:
07 Apr 2020 14:42
That's a tricky one to answer. The only recollection I have of anything like troposcatter would probably be from the old band 1 TV DX days when transmitters like Grunten would propagate at carrier level. That would probably be too far for aircraft scatter. It would be an almost constant signal with a little fluttery fluctuation. I guess the fact that the signal would stick around for longer would also be an indicator that it was troposcatter. Ionoscatter was very similar, just from further away at a typical Es distance. 'Fluttery but constant' you might say. Does anybody have any other/better explanations?
Thank you John and thank you Stuart, now it's clear: the propagation mode I've experienced sometimes is definitely Aircraft Scatter, not troposcatter.
Rxs: Degen DE-1103, Sangean ATS-909, Tecsun PL-398 MP

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