on January 1. A first look at the NEW Xiegu GSOC. So that is the same as 8:50 PDT or 11:50 EDT on Thursday. An archive of past propagation bulletins is at http://arrl.org/w1aw-bulletins-archive-propagation. By the next day (yesterday) it had already faded away into nothingness. unsettled to active on: (March 27, April 14-15)
The Solar Cycle Prediction Panel agreed that Cycle 25 will be of average intensity and similar to Cycle 24. – The predictability of changes remains lower as there are no indications. The ARRL is a member-society and International Secretariat of the International Amateur Radio Union. their polarity, opposite from spots in Solar Cycle 24.
We have been looking forward to the vernal equinox, which occurred at 0350 UTC today, March 20.
For more information concerning radio propagation, see http://www.arrl.org/propagation and the ARRL Technical Information Service at http://arrl.org/propagation-of-rf-signals. ARRL Propagation Bulletin
… Sunspot numbers for March 12 through 18, 2020 were 0, 0, 0, 0, 0, 0, and 0, with a mean of 0. It is characterized by an... Read more, Let’s take a quick look at the classic Astatic D-104 microphone!
ARRL Propagation Bulletin ARLP001 (2020) Our recent Solar Cycle 24 was the worst cycle for HF since the invention of radio. Toll-free:1-888-277-5289 A couple of resources I am finding useful for real time reporting of propagation on various bands, modes and times, from 24 hours ago until present time: If you would like to make a comment or have a tip for our readers, email the author at, For more information concerning radio propagation, see, An archive of past propagation bulletins is at, Monthly propagation charts between four USA regions and twelve overseas locations are at, Instructions for starting or ending email distribution of ARRL bulletins are at, https://www.space.com/sun-old-faithful-plasma-geyser-sunspot-explanation.html, http://arrl.org/propagation-of-rf-signals, http://arrl.org/the-sun-the-earth-the-ionosphere, http://arrl.org/w1aw-bulletins-archive-propagation, It’s a Wrap for Hurricane Watch Net, ARES Teams Stand Down, RSGB Seeks Regulator’s Records of Complaints about On-Air Behavior, Oldest Known US Radio Amateur, Cliff Kayhart, W4KKP, SK at 109, Radio Amateurs in Western Pennsylvania to Commemorate KDKA Broadcasting Centennial, University in Poland will Launch Balloon with VLF Transmitter On Board, ISS 437.800 MHz cross band FM repeater activated, Shortwave Listening with your HF Transceiver, How to Read Crossed-Needle SWR/Watt Meters, Xiegu GSOC – An Overlook of Functions and Features, Measuring Crystals with NanoVNA and other tools, Best HF Ham Radio Under $1000 – 6 Best HF Transceivers 2020.
is also available as A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. Additionally, the panel concurred that solar minimum between Cycles 24 and 25 will occur in April, 2020 (+/- 6 months). “The sun is currently in solar minimum — the nadir of the 11-year sunspot cycle,” Tony Phillips said in his article, “Reversed Polarity Sunspots Appear on the Sun” on the Spaceweather.com website. “Such an event could have implications for terrestrial climate.”. In an article posted on NOAA’s Space Weather Prediction Center site, Scott McIntosh, the Director of the High Altitude Observatory at National Center for Atmospheric Research (NCAR), stresses that Solar Cycle 25 will happen, “but a sunspot cycle could be small.”, Predictability comes with some physical understanding of the underlying process, McIntosh asserts.
website. on the Edit Email Subscriptions page of thier This means that we’ve been in Solar Cycle 25 since December 2019! Predicted planetary A index is 8 on March 20-23, 5 on March 24-27, then 8 on March 28, 5 on March 29 until April 5, then 10 and 8 on April 6-7, 5 on April 8-13, then 8, 12 and 8 on April 14-16, 5 on April 17-22, then 12 and 8 on April 23-24, and 5 on April 25 until May 2 and 10 on May 3. If this solar minimum prediction is correct, it would make Solar Cycle 24 the seventh longest on record at 11.4 years. In last week’s bulletin we reported sunspots on just two days, March 8 and 9. On December 24, two new sunspots — one in each hemisphere — emerged on the face of the sun that exhibit the reversed magnetic polarity marking them as belonging to Solar Cycle 25. Climate scientist David Archibald speculates that the Solar Cycle 24/25 minimum could occur as late as March 2021, and that Cycle 25 maximum might not happen until 2027. ... What is the Best HF Radio for under $1000 for the new Ham Radio Operator in 2020? This list of 6 transceivers that I would recommend to new Ham Radio... Read more, Copyright © 2010-2020 QRZnow.com All Rights Reserved - Rodrigo Tarikian - PY2KC. “Today’s new-cycle sunspots (along with isolated new-cycle spots earlier this year) suggest that the solar cycle is, in fact, unfolding normally,” Phillips wrote, adding that a new Maunder Minimum does not appear to be in the offing.
Remarks: Geomagnetic averages were quiet but higher, with planetary A index changing from 4.4 to 5.9 and middle latitude A index from 3.6 to 4.1. Spaceweather.com reported a sunspot number of 11 on January 1. On December 24, two new sunspots — one in each hemisphere — emerged on the face of the sun that exhibit the reversed magnetic polarity marking them as belonging to Solar Cycle 25.
“It’s a deep minimum, century-class according to sunspot counts.” The remarkable sunspot scarcity has prompted discussion of a possible “extended minimum” akin to the Maunder Minimum in the 17th century, when no sunspots appeared for decades, Phillips said. The K7RA Solar Update
active to disturbed: never, Solar wind will intensify on: March 28, (29-31, April 9, 13). “A solar cycle isn’t over until the heliospheric current sheet has flattened. And that could be as late as March 2021. for January 3, 2020. The ARRL’s Propagation Forecast Bulletin #1 for 2020, dated January 3, reports the following: Sunspots appeared recently, all indicating Solar Cycle 25 due to their polarity, opposite from spots in Solar Cycle 24. Solar Weather, Sunspot activity, Geomagnetic, Aurora, Ionospheric … First long-duration flare of Solar Cycle 25 – The K7RA Solar Update. Newington, CT, 06111-1400 USA Estimated planetary A indices were 7, 7, 3, 5, 7, 6, and 6, with a mean of 5.9.