GB2RS Propagation News
Propagation News – 26 December 2021
Given that this report has to last two weeks it is difficult to be precise in terms of actual HF conditions. What we can say is that we are in turbulent times, with the solar flux index going up and down, and geomagnetic conditions subject to fluctuations as coronal holes and coronal mass ejections come […]
Propagation News – 19 December 2021
After a period with zero sunspots we’re pleased to announce that the drought is over. There are now at least five active groups on the solar surface and this could even increase over the coming days. The solar flux index had leapt up to 103 from 89 on Thursday and could go even higher. This […]
Propagation News – 12 December 2021
The predicted elevated Kp index that we talked about last week didn’t amount to much at the end of the day. The solar wind remained reasonably calm and the Kp index only peaked at three. This rapidly fell to one by Tuesday and stayed at one or two for the rest of the week. Solar […]
Propagation News – 05 December 2021
The last week was characterised by unsettled geomagnetic conditions, but a reasonable solar flux index of 92, falling to 86. Despite NOAA predicting that the Kp index would be around two, we had an excursion up to five on Tuesday. This was due to an enhanced solar wind stream containing a sector of southward Bz, […]
Propagation News – 28 November 2021
We had yet another week with low solar activity. The solar flux index started the week at 79 and by Thursday had only climbed to 83. Ideally, we want the SFI to be above 100 to guarantee good 10m openings. Geomagnetically, the Sun has been quiet with a maximum Kp index of three. On Thursday […]
Propagation News – 21 November 2021
We had a week of lower sunspot activity, almost back to the days of sunspot minimum. The solar flux index ranged from 78 on Sunday 14th to 79 on Thursday 18th with a high of 80 on the 16th. So, nothing to write home about there. Geomagnetic conditions were mainly unsettled, with a maximum Kp […]
