SB PROP @ ARL $ARLP005   
   ARLP005 Propagation de K7RA   
      
   ZCZC AP05   
   QST de W1AW     
   Propagation Forecast Bulletin 5  ARLP005   
   >From Tad Cook, K7RA   
   Seattle, WA  January 30, 2015   
   To all radio amateurs    
      
   SB PROP ARL ARLP005   
   ARLP005 Propagation de K7RA   
      
   Average daily sunspot numbers for the January 22-28 period rose from   
   61.9 on the previous seven days to 89.1. Average daily solar flux   
   rose from 126.2 to 136.8 over the same period.   
      
   There were two new sunspot regions on January 22, another one on   
   January 23 and again on January 25, four more on January 26, another   
   two on January 28 and one more on January 29.   
      
   The average daily solar flux for the following seven days, January   
   29 through February 4 is predicted to be 163.6, nearly 27 points   
   higher than the previous week.   
      
   Predicted solar flux is 170 on January 30 through February 1, then   
   165 and 155 on February 2-3, 150 on February 4-5, 140 on February 6,   
   130 on February 7-9, 125 on February 10-11, 120 on February 12-13,   
   and 125 on February 14-16. Flux values then reach a low of 115 on   
   February 18, then a high of 135 on February 26-28.   
      
   Predicted planetary A index is 15 on January 30 through February 1,   
   12 on February 2, 10 on February 3-7, 8 on February 8-9, 5 on   
   February 10-14, 12 on February 15, and 10 on February 16-18.   
      
   F.K. Janda, OK1HH blesses us with his geomagnetic prediction from   
   the Czech Propagation Interest Group. He sees quiet to unsettled   
   conditions January 30, disturbed conditions January 31, active to   
   disturbed February 1, quiet to active February 2, disturbed on   
   February 3, mostly quiet on February 4, quiet to unsettled February   
   5, quiet to active February 6, active to disturbed February 7, quiet   
   on February 8, mostly quiet February 9-15, quiet on February 16,   
   quiet to active February 17, mostly quiet February 18-19, quiet on   
   February 20, mostly quiet February 21, quiet to active February   
   22-23, active to disturbed February 24, disturbed on February 25.   
      
   OK1HH expects an increase (he calls it an amplification) of solar   
   wind on February 3-4, 19-20, and 25. Also note that OK1HH refers to   
   the "Czech Propagation Interested Group," but I suspect that   
   "interest group" is probably a better translation to American   
   English.   
      
   Mike Gilmer, N2MG of Vernon, New York found a bad URL in some   
   versions of last week's Propagation Forecast Bulletin ARLP004.   
      
   The correct URL for the Wikipedia list of solar cycles is:   
      
   http://en.wikipedia.org/wiki/List_of_solar_cycles   
      
   Somehow a .png extension was added to the bulletin in the W1AW   
   archive and the one that was emailed to readers.  But the link from   
   the ARRL home page had the correct URL:   
      
   The bulletin in the archive has been updated.   
      
   Dick Bingham, W7WKR, who lives way off the grid in North Central   
   Washington State, sends this article about experimental licenses   
   granted by the FCC.   
      
   http://www.tvtechnology.com/distribution/0099/list-of-experiment   
   l-licenses-rev eals-interesting-hf-data-comm-experiments/274152   
   .   
      
   We received no reports from readers this week about propagation or   
   on the air activity.   
      
   If you would like to make a comment or have a tip for our readers,   
   email the author at, k7ra@arrl.net.   
      
   For more information concerning radio propagation, see the ARRL   
   Technical Information Service web page at,   
   http://arrl.org/propagation-of-rf-signals. For an explanation of the   
   numbers used in this bulletin, see   
   http://arrl.org/the-sun-the-earth-the-ionosphere. An archive of past   
   propagation bulletins is at   
   http://arrl.org/w1aw-bulletins-archive-propagation. More good   
   information and tutorials on propagation are at http://k9la.us/.   
      
   Monthly propagation charts between four USA regions and twelve   
   overseas locations are at http://arrl.org/propagation.   
      
   Instructions for starting or ending email distribution of ARRL   
   bulletins are at http://arrl.org/bulletins.   
      
   Sunspot numbers for January 22 through 28 were 63, 70, 57, 65, 110,   
   119, and 140, with a mean of 89.1. 10.7 cm flux was 120.3, 121.1,   
   125.3, 126.6, 147, 158.1, and 159.3, with a mean of 136.8. Estimated   
   planetary A indices were 12, 9, 7, 6, 16, 12, and 7, with a mean of   
   9.9. Estimated mid-latitude A indices were 9, 8, 5, 3, 12, 9, and 5,   
   with a mean of 7.3.   
   NNNN   
   /EX    
      
      
      
   )\/(ark   
      
   If you think it's expensive to hire a professional to do the job, wait until   
   you hire an amateur.   
      
   --- FMail/Win32 1.60   
    * Origin:  (1:3634/12.71)