[IRCA] Fw: ARLP055 Propagation de K7RA

["Art Blair" <artngwen@xxxxxxxxxx>]

----- Original Message ----- 
From: "W1AW Mailing List" <w1aw-list-request@xxxxxxxxxxxxxxxxx>
To: <artngwen@xxxxxxxxxx>
Cc: <W1AW List:>
Sent: Friday, December 30, 2005 7:19 AM
Subject: ARLP055 Propagation de K7RA


> SB PROP @ ARL $ARLP055
> ARLP055 Propagation de K7RA
> 
> ZCZC AP55
> QST de W1AW  
> Propagation Forecast Bulletin 55  ARLP055
>>From Tad Cook, K7RA
> Seattle, WA  December 30, 2005
> To all radio amateurs 
> 
> SB PROP ARL ARLP055
> ARLP055 Propagation de K7RA
> 
> Average daily sunspot numbers rose over 22 points this week to 71.4,
> and average daily solar flux was up by nearly 5 to 91.2. Not too bad
> with the predicted solar minimum a year away. Over the past week
> geomagnetic indicators were stable, but a solar wind caused the K
> and A index to rise on December 27 and 28.
> 
> Sunspot and solar flux levels should remain approximately the same,
> perhaps slightly lower January 1-4. Geomagnetic indicators should be
> slightly unsettled for today, December 30, then quiet December 31 to
> January 4, and quiet to unsettled January 5.
> 
> Next week we should have a look at the average sunspot numbers for
> the year, comparing them with past years. So far, with only a few
> days to go, it looks like the 2005 average daily sunspot number will
> be nearly 30% less than in 2004.
> 
> Conditions should be good (little geomagnetic activity) for Straight
> Key Night, the annual operating activity from 0000-2400z January 1.
> So here on the West Coast it will run from 4:00 PM Saturday until
> the same time on Sunday. This is a fun activity in which
> participants use regular old-fashioned telegraph keys and often
> vintage gear to communicate manually via Morse code. Details are at
> http://www.arrl.org/contests/rules/2006/skn.html.
> 
> Jaap Verheul, PA3DTR wrote in about Marcel Decanck, ON5AU and his
> propagation web site at http://users.skynet.be/on5au/. Jaap likes to
> use the beacon logging page (click on "Beacons On-Line" on the left
> side of the page) which shows which beacons from different locations
> are currently being received at ON5AU in Belgium. You can get some
> idea how your part of the world is being received in Europe on the
> 20 meter band and above by looking for signals from the beacon
> station closest to you.
> 
> Red Haines, WO0W sent in some interesting links recently, including
> the Propagation Page for the Radio Society of Great Britain. Many
> nice links and resources on this page at,
> http://www.keele.ac.uk/depts/por/psc.htm.
> 
> If you would like to make a comment or have a tip for our readers,
> email the author at, k7ra@xxxxxxxxx
> 
> For more information concerning radio propagation and an explanation
> of the numbers used in this bulletin see the ARRL Technical
> Information Service propagation page at,
> http://www.arrl.org/tis/info/propagation.html. An archive of past
> bulletins is found at, http://www.arrl.org/w1aw/prop/.
> 
> Sunspot numbers for December 22 through 28 were 77, 47, 70, 77, 90,
> 78 and 61 with a mean of 71.4. 10.7 cm flux was 87.6, 93.1, 91.9,
> 91.8, 92.5, 92.3, and 89.1, with a mean of 91.2. Estimated planetary
> A indices were 4, 1, 3, 6, 6, 18 and 14 with a mean of 7.4.
> Estimated mid-latitude A indices were 4, 1, 2, 3, 3, 10 and 13, with
> a mean of 5.1.
> NNNN
> /EX
> 
>

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