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LF: Re: Re: Re: DI2AG 440KHz...rapid fading

To: [email protected]
Subject: LF: Re: Re: Re: DI2AG 440KHz...rapid fading
From: "Alan Melia" <[email protected]>
Date: Thu, 6 Jan 2005 10:26:06 -0000
References: <009701c4f319$3a34fe60$fe79a8c0@PCVONWALTER> <001301c4f358$a60eb5b0$6501a8c0@eagles> <001001c4f370$9d02a720$6507a8c0@Main> <000e01c4f3ac$6f8b2150$6501a8c0@eagles>
Reply-to: [email protected]
Sender: [email protected]
Hi J, Ah I understand. MMmm I dont know about that "echo" but I have seen
similar effects when two stations (or carriers) operate very close together
and ARGO shows a "beat" between them......but a mod phase shift??.....very
odd.

As to the aurora for the rapid fading....yes it is a possibility that should
not be dismissed without some study. I had discounted it on the grounds that
the period of the rapid fading seems very constant over a time of 8 to 10
hours. I thought it unlikely that the auroral curtain would be able to
provide such a "high Q" effect, and was drawn to some kind of resonance
explanation. The auroral curtain seems to move in a much more random
way....but I am not really able to investigate that from here. There will be
some form of connection as the aurora will be visible at the time of the CME
collision......fascinating....... I suppose the answer would be to listen to
the signal, as if strong enough the signal should also have that
characteristic "growl" on it ?? if some component of it was via a reflection
from the curtain.

Cheers de Alan G3NYK

----- Original Message -----
From: "J. Allen" <[email protected]>
To: <[email protected]>
Sent: 06 January 2005 04:58
Subject: LF: Re: Re: DI2AG 440KHz...rapid fading


Alan,

Unfortunately, I was discussing two diverse things, which may or may not
have explanation in Aurora.




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