GB2RS Propagation News
Propagation News – 31 July 2022
We’ve had a week of lower solar flux indices, despite a smoothed sunspot number in the 50s. The sunspots we have had have been relatively small and pretty inconsequential. The week started off with an SFI of 107, but then declined to 98 by Thursday. The good news is that we have had relatively settled […]
Propagation News – 24 July 2022
Last week was almost a repeat performance of the previous week. We had very disturbed geomagnetic conditions on Tuesday, with the Kp index hitting five. But then other days, like Wednesday, when conditions were much more settled. The solar flux index declined from its high of 176 last Saturday to 133 on Thursday. The Sun’s […]
Propagation News – 17 July 2022
We had another rocky journey last week in terms of HF propagation. The solar flux index climbed from 137 last Saturday to 165 by Thursday, which should have brought better conditions. But the Earth was plagued again by unsettled geomagnetic conditions, with the Kp index hitting four on Monday, the 11th, and five on Tuesday, […]
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 […]
