Sent: Monday, February 6, 2017 7:20 AM
To: topband@contesting.com
Subject: Topband: Fwd: Echo on 160m yesterday morning
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.u
Hi Andy,
Ducting takes place over a relatively small area. Depends upon cloud layers
and temperature zones
This event took place ~ world wide. Band openings between North America to
Asia, and Australia.
73
Bruce-k1fz
http://www.qsl.net/k1fz/beverage_antenna.html
On Mon, 6 Feb
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/2009_MagnetoDucting-QST-LA3ZA.pdf.
Delay depends on your latitude - but couple of hundred
