GB2RS Propagation News
Propagation News – 21 August 2022
It looks like the Sun continued to be unsettled with an enhanced solar wind from coronal holes making itself felt here on Earth. A geomagnetic storm pushed the Kp index to six for two consecutive six hour slots on the evening of the 17th, although it was fairly quick to recover. However, it wasn’t long […]
Propagation News – 14 August 2022
The geomagnetic disturbance we predicted last week, due to an Earth-facing coronal hole and its associated high-speed solar wind, occurred in the early hours of Monday the 8th. This pushed the Kp index to six and sparked a visible aurora that was visible from parts of the UK. It also impacted the Maximum Useable Frequency […]
Propagation News – 7 August 2022
Last week was characterised by a solar flux index around 100, but reasonably settled geomagnetic conditions. The SFI had a low of 94 on Sunday and a high of 100 on Thursday. The Kp index has been in the range of one to four, with more settled conditions being experienced in the second half of […]
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, […]
