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Re: Topband: COSMIC RAY UPDATE

To: topband@contesting.com
Subject: Re: Topband: COSMIC RAY UPDATE
From: Michael Tope <W4EF@dellroy.com>
Date: Sat, 14 Dec 2019 12:19:41 -0800
List-post: <mailto:topband@contesting.com>
During the last minimum, there were times when high northern latitude stations in zone 17 and 18 would be very strong for long periods of time here in southern California. Last Sunday morning during the ARRL 160 contest there was an opening that had that very low absorption characteristic (RA4LW was briefly pumping my AGC), but it was very short lived opening. Nothing like the sustained openings from the last cycle.

I've been hoping for a repeat performance of the last cycle, but so far I've been disappointed. Perhaps the GCR phenomenon is the reason. We are still early into the winter season, so perhaps there is still some hope.

73, Mike W4EF....................

On 12/14/2019 10:24 AM, Bill Tippett wrote:
This could account for relatively poor conditions on 160 despite the low SF
and K indices:

*COSMIC RAY UPDATE:* Something ironic is happening in Earth’s atmosphere.
Solar activity is low–very low. Yet atmospheric radiation is heading in the
opposite direction. Cosmic rays percolating through the air around us are
at a 5 year high and only percentage points away from a Space Age record.
Find out what's happening on today's edition of Spaceweather.com
<https://spaceweather.us11.list-manage.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=84e9b2ac89&e=b06d5db3f7>
.

73,  Bill  W4ZV

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