GB2RS Propagation News
Propagation News – 3 September 2023
We had another week of relatively settled solar conditions. The Kp Index never really got above three and the Solar Flux Index flattened to be below 140. Solar flares were nominal with only minor C-class events occurring and with no Earth-directed coronal mass ejections. The solar wind speed remains low as does its density. The […]
Propagation News – 27 August 2023
Last week saw plenty of DX being worked, thanks to quiet geomagnetic conditions and a seasonal change to a more autumnal ionosphere. Although we are still in August, there are signs that the ionosphere is moving away from its summer doldrums as its chemical composition changes to more monatomic species, which ionise more easily. Another […]
Propagation News – 20 August 2023
Sunspot activity continues as we head towards solar maximum. We have had a reasonably settled Sun over the past week. The Kp index never exceeded 3.33 and was generally in the ones and twos all week. We also had no M or X-class flares to worry about with only minor C-class events occurring. The solar […]
Propagation News – 13 August 2023
Sunspot activity continues as we head towards solar maximum. Or have we already gone past that point? Identifying solar maximum can only really be done in retrospect. That is, after we have already had it! Solar maximum is now forecast for early to mid-2025 so we still have some way to go. Last week the […]
Propagation News – 06 August 2023
The Sun continued to be very active over the last week with a large number of sunspots, numerous C- and M-class flares, and a coronal mass ejection or two. A coronal mass ejection is predicted to hit Earth this weekend, which could see the Kp index rise, but this is not expected to be too […]
Propagation News – 30 July 2023
It was a mixed bag last week with periods of settled conditions, but two periods when the Kp index was above four. These unsettled geomagnetic conditions impacted HF, subduing signals and generally not helping at all. The cause was a coronal mass ejection, or CME, that passed Earth late on Tuesday 25 July. This triggered […]
