[SFDXA] ARLP043 Propagation de K7RA

[Bill]

ARLP043 Propagation de K7RA


	

SB PROP @ ARL $ARLP043

ARLP043 Propagation de K7RA

ZCZC AP43

QST de W1AW

Propagation Forecast Bulletin 43 ARLP043

From Tad Cook, K7RA

Seattle, WA November 8, 2024

To all radio amateurs

SB PROP ARL ARLP043

ARLP043 Propagation de K7RA

Solar activity increased this week. The average daily sunspot number 
went from 197.4 to 193.4.

Predicted solar flux is 265 on November 8, 260 on November 9, 250 on 
November 10-11, 245 on November 12-13, 240 on November 14 and 165 on 
November 15.

Activity on 10-meters has been fantastic. There is no want of contacts 
using CW, SSB, or FT8. Radio operators can quickly fill up their logs 
with QSOs made on this band. And don't forget 6-meters.

Send your tips, reports, observations, questions, and comments to 
k7ra at arrl.net <mailto:k7ra at arrl.net>. When reporting observations, don't 
forget to tell us which mode you were operating.

For more information concerning shortwave radio propagation, see 
www.arrl.org/propagation 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDEzNQ/index.html> 
and the ARRL Technical Information Service web page at, 
www.arrl.org/propagation-of-rf-signals 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDEzNg/index.html>. 
For an explanation of numbers used in this bulletin, see 
www.arrl.org/the-sun-the-earth-the-ionosphere 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDEzNw/index.html>.

An archive of past propagation bulletins is at 
www.arrl.org/w1aw-bulletins-archive-propagation 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDEzOA/index.html>. 
More good information and tutorials on propagation are at http://k9la.us 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDEzOQ/index.html>.

Also, check this article:

https://bit.ly/3Rc8Njt 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDE0MA/index.html>

''Understanding Solar Indices'' from September 2002 QST.

Instructions for starting or ending email subscriptions to ARRL 
bulletins are at www.arrl.org/bulletins 
<https://arrl.informz.net/z/cjUucD9taT0zMTg0Mzg5JnA9MSZ1PTUyNTQ3MzY2NCZsaT0zNTc5MDE0MQ/index.html>.

Sunspot numbers for November 1-6 were 187, 210, 242, 220, 191, 149, and 
155, with a mean of 193.4. The 10.7 centimeter flux was 252.2, 246.6, 
236.7, 238.3, 241.4, 255.9, and 234.8, with a mean of 243.7. Estimated 
planetary A indices were 7, 13, 11, 14, 11, 10, and 8, with a mean of 
10.6. Middle latitude A index was 6, 9, 8, 11, 10, and 9 for November 
1-6, with missing data for November 7. The mean of the six days was 8.8.

NNNN

/EX

	


	

ARRL® The National Association for Amateur Radio®

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