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1. Topband: Fwd: Echo on 160m yesterday morning (score: 1)
Author: Andy Cook <g4piq@btinternet.com>
Date: Mon, 6 Feb 2017 12:20:07 +0000 (GMT)
I think you'll find this was Magnetospheric Ducting. Take a look at some of the articles here http://la3za.blogspot.co.uk/search/label/Unusual%20Propagation and here http://folk.uio.no/sverre/papers/
/archives//html/Topband/2017-02/msg00027.html (7,663 bytes)

2. Re: Topband: Echo on 160m yesterday morning (score: 1)
Author: Andy Cook <g4piq@btinternet.com>
Date: Mon, 6 Feb 2017 14:42:58 +0000
I think this form of ducting takes place way above the layers of the atmosphere where weather happens. In my experience the magnetospheric ducting is normally localized in impact. If this was really
/archives//html/Topband/2017-02/msg00029.html (9,700 bytes)

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