GB2RS Propagation News
Propagation News – 10 July 2022
It was a mixed bag of HF propagation last week. The solar flux index was adequate rather than outstanding and a large elongated coronal hole contributed to the Kp index hitting five on the 4 July. However, things became more settled geomagnetically later in the week with the Kp index back down in the ones […]
Propagation News – 3 July 2022
Last week was not a good one for HF propagation in general. There were many complaints from amateurs about poor conditions that can be explained by a combination of low solar flux levels and unsettled geomagnetic conditions. The SFI started the week last Sunday at 102 but then dropped to 98 the following day. It […]
Propagation News – 26 June 2022
As predicted, the solar flux index fell back this week, but it didn’t fall as low as experts predicted. On Thursday, it stood at 129, but with three sunspot groups about to rotate off the visible surface, it looks like it may now fall lower. We are now well and truly into the summer season […]
Propagation News – 19 June 2022
We said that last week’s relatively low solar flux index wouldn’t last very long and it looks like we were right. This week we have had an SFI that started at 121 and just kept climbing, peaking at 149 on the 15 June. Unfortunately, we have also had some plasma to contend with thanks to […]
Propagation News – 12 June 2022
The sunspot number on Wednesday was zero with a solar flux index of 100. Given the high flux numbers we have been seeing this is a little disappointing. The last time the visible disk was officially spotless was December 2021. The upside is that there has been little risk of coronal mass ejections and the […]
Propagation News – 5 June 2022
What a difference a week makes! Last week we were looking at a solar flux index of 137 and a mass of sunspots. This week the SFI is standing at 101 with only three active regions visible, and one of those is about to rotate out of view. Geomagnetic conditions have been relatively stable, but […]
