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From: "J. Allen" <vy1ja@northwestel.net>
To: <rsgb_lf_group@blacksheep.org>
References: <45541CDB.1050800@online.fr> <455430CB.1050205@online.fr> <000801c704a0$f6e32bf0$6801a8c0@pmchelpdesk1> <455445C7.1020005@online.fr>
Date: Fri, 10 Nov 2006 14:34:55 -0000
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Subject: LF: Auroral Index, E-W path loss, N-S one-way?
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Status: O

The Southern Aurora was seen in Austraila and New Zealand and was seen in 
the northern hemisphere as far south as the north central states this side 
of the pond.  It is is still visible this morning in Yukon.

The level scale goes only to 10 and it had reached a 9 when reported to the 
group last night (PST).  Personal observations at MF and HF have shown the 
E-W propagation dies and that the N-S path still functions but deteriorates 
as location approaches or is under the Auroral halo.  Often this 
deterioration is shown as one-way propagation with the northern station 
being the better receiving station than the southern.  I would be interested 
in knowing if this phenomena repeats at LF.

Is there a tendency to loose E-W propagation on LF during an Aurora?
Is there also a tendency (recorded) for one-way, for equal stations on a 
north-south path to have a disparity between received signals, and if so is 
the northern station usually the one which seems to have its propagation 
impared for transmission while its reception is not impared as much?

Are there LF stations in EU above 60 degrees latitude with operators who 
will verify or dismiss these observations?

J.