ARLP009 Propagation de K7RA – March 2, 2018

QST de W1AW Propagation Forecast Bulletin 9  ARLP009 From Tad Cook, K7RA Seattle, WA  March 2, 2018 To all radio amateurs We’ve seen many days with no sunspots over the past year, especially in more recent times. Periods with more than three days of blank Sun include January 4-11, 2017, March 6-20, 2017, May 9-15, 2017, June 9-12, July 18-24, October 8-14, October 16-20, November 1-13, November 19-24, December 1-5, December 13-19, December 28, 2017 through January 3, 2018, January 20-29, 2018, and February 18-25. Sunspots have been visible every…

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Propagation Forecast Bulletin – February 23, 2018

QST de W1AW Propagation Forecast Bulletin 8  ARLP008 From Tad Cook, K7RA Seattle, WA  February 23, 2018 To all radio amateurs Average daily sunspot number dropped from 24 during the previous seven days, to 5.6 in the current reporting week, February 15-21. That average is so low because no sunspots have been seen since February 17, and no new sunspot regions were observed since February Average daily solar flux dropped to 70.1 in the current period from 77.4 in the previous week. Based on the latest 45-day prediction for solar…

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Propagation Forecast – February 16, 2018

  QST de W1AW Propagation Forecast Bulletin 7  ARLP007 From Tad Cook, K7RA Seattle, WA  February 16, 2018 To all radio amateurs   Solar activity increased over the last reporting week (February 8-14). Average daily sunspot number rose from 10.3 to 24, while average daily solar flux increased from 72.5 to 77.4. Geomagnetic indicators were quiet, with average planetary A index changing from 4.4 to 4.1, and average mid-latitude A index going from 3.6 to 3. Predicted solar flux is 71, 70 and 69 on February 16-18, 68 on February 19-22,…

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Propagation Forecast Bulletin 6 – February 9, 2018

Propagation Forecast Bulletin 6  ARLP006 From Tad Cook, K7RA Seattle, WA  February 9, 2018 To all radio amateurs   Compared to the previous seven days, solar activity increased in the first week of February. There were two days with no sunspots, February 1 and 3. On February 2 a new sunspot region emerged, but by the next day it had disappeared. Another sunspot region appeared on February 4, and the area it covered on February 4-7 was 80, 130, 160 and 200 millionths of the solar hemisphere. We haven’t seen…

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Propagation Forecast – January 26, 2018

Propagation Forecast Bulletin 4  ARLP004 From Tad Cook, K7RA Seattle, WA  January 26, 2018 To all radio amateurs Low solar activity continued over the past reporting week (January 18-24) with zero sunspots visible after January 19. Average daily sunspot number changed from 7 over the previous seven days to 3.3 this week. Average daily solar flux was down slightly from 70.7 to 70. Geomagnetic indicators were also quiet. Predicted solar flux is 70 on January 26 through February 16, 68 on February 17, 69 on February 18-19, 68 on February…

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Propagation Update – January 19, 2018

Propagation Forecast Bulletin 3  ARLP003 From Tad Cook, K7RA Seattle, WA  January 19, 2018 To all radio amateurs It was a quiet week in space weather (January 11-17) with 0 sunspots over the weekend and geomagnetic indicators rising only slightly. Compared to last week, average daily sunspot numbers declined from 11.9 to 7, but average daily solar flux went from 69.9 to 70.7. Seems counter-intuitive that sunspot and solar flux would move in opposite directions, but these are all very low numbers anyway, and any change is slight. Also, there…

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DX Update – January 11, 2018

  DX Bulletin 2  ARLD002 From ARRL Headquarters Newington CT  January 11, 2018 To all radio amateurs This week’s bulletin was made possible with information provided by the OPDX Bulletin, 425 DX News, DXNL, Contest Corral from QST and the ARRL Contest Calendar and WA7BNM web sites.  Thanks to all. SOMALIA, 6O.  Operators Ken, LA7GIA and Adrian, KO8SCA are QRV as 6O6O until January 16.  Activity is on 160 to 10 meters using CW, SSB, RTTY and FT8.  QSL via M0OXO. MALAWI, 7Q.  John, N6JW is QRV as 7Q7JW.  Activity…

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Propagation Update – January 5, 2018

QST de W1AW Propagation Forecast Bulletin 1  ARLP001 From Tad Cook, K7RA Seattle, WA  January 5, 2018 To all radio amateurs No sunspots appeared from December 27, 2017 until January 4, 2018. As Solar Cycle 24 declines to a minimum over the next two years we should see longer and more numerous periods of no sunspots. On January 4 the daily sunspot number was 13, indicating 3 sunspots in one sunspot group, although Spaceweather.com reported no sunspots on that day. The sunspot number for that day was reported by NOAA…

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Propagation Update de K7RA

Propagation Forecast Bulletin 51  ARLP051 From Tad Cook, K7RA Seattle, WA  December 29, 2017 To all radio amateurs: SB PROP ARL ARLP051 ARLP051 Propagation de K7RA There were no zero-sunspot days over the past reporting week, December 21-27. Then on Thursday, December 28 there were no sunspots.  So far in 2017 there have been 102 days with no sunspots, or 28%. Average daily sunspot number was 17.4, up from 2.3 the previous seven days. The previous week had such a low average because only one day out of that week…

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ETH090 – WSPRnet with John Jacobs, W7DBO

  Hello everybody and welcome back to the Everything Ham Radio Podcast! In this episode we are going to talk with John Jacobs, W7DBO, from the Hamradio 360: Field Radio Podcast about WSPRnet and More. Tech Corner – WSPRnet What Is WSPRNet? WSPRnet stands for Weak Signal Progagtion Reporting. It is a system devolped by , who also developed all the JT modes. It allows you to transmit and receive automate signal heard reports from other stations around the world. You can see who is hear your signal and who…

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