GB2RS Propagation News
Propagation News – 27 March 2022
We had a good week of HF propagation with moderate solar flux index numbers and generally quiet geomagnetic conditions. The KP index has not been above three, at least by Thursday when this was written. And the SFI has been hovering around the 100 mark, which was enough to stir 12 metres into action with […]
Propagation News – 20 March 2022
Well, what a mixed week of solar activity we have just had. Last week, we forecast that we could expect unsettled geomagnetic conditions over the last weekend, but we didn’t expect to see the Kp index hit six. Sunday the 13th saw ground-based magnetometers hit hard with at least 15 hours of unsettled conditions, when […]
Propagation News – 13 March 2022
We may not have had a large number of sunspots this week, but at least the Sun was consistent. We started the week last Sunday with a sunspot number of 116, and by Thursday it was still at 115. This sounds worse than it actually was as there were six sunspot groups active on Thursday, […]
Propagation News – 6 March 2022
We had another pretty uninspiring week, sunspot wise, with the solar flux index struggling to get above 100, at least until later in the week when it touched 110 on Thursday. The good news is that, on the whole, geomagnetic conditions were quiet, which really allowed the F2 ionospheric layer to develop. As a result, […]
Propagation News – 27 February 2022
It was not an outstanding week for HF propagation with low solar flux index numbers and an elevated Kp index at times. The week started off OK with the ARRL DX CW contest. This went quite well with 15 metres open as far as the mid-west in the afternoon, even for modestly-equipped stations. But with […]
Propagation News – 20 February 2022
Last week was pretty subdued in terms of sunspots, but it looks like we missed one of the most impressive space weather events of Solar Cycle 25. A bright, fast-moving coronal mass ejection, or CME, was visible coming off the far side of the Sun on imagery from the STEREO Ahead spacecraft. Had this event […]
