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Propagation News – 3 July 2022Fri 1st Jul 2022 15:34 BST

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 2022Fri 24th Jun 2022 15:07 BST

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 2022Fri 17th Jun 2022 15:25 BST

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 2022Fri 10th Jun 2022 13:05 BST

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 […]

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