GB2RS Propagation News
Propagation News – 16 October 2022
We had yet another week of good HF propagation, helped by reasonably settled geomagnetic conditions. Although the week started relatively poorly with a Kp index of four all day on Sunday, that soon improved slightly and the rest of the week saw the Kp index hit only ones or twos. The solar flux index declined […]
Propagation News – 9 October 2022
Yet another good week for HF propagation has passed, although it has been borderline in terms of geomagnetic disturbances. The Kp index hovered around the four mark all week, mainly due to high-speed streams from the solar wind, possibly from slight glancing blows from incoming CME material. There have been a few M-class solar flares, […]
Propagation News – 2 October 2022
The HF bands have been really humming this week, making up for the summer doldrums. A lot of this is due to the seasonal change in the ionosphere that results in more monatomic species and fewer diatomic ones. These are easier to ionise, which is good news for radio amateurs everywhere as the MUF rises. […]
Propagation News – 25 September 2022
Last week saw the solar flux index decline very slightly to 137. The good news is that we have had reasonably-settled geomagnetic conditions. The highest Kp index has been three, but it has often been at zero or one. This is good news as it means that the ionosphere has had a chance to develop. […]
Propagation News – 18 September 2022
We had an expected boost to the solar flux index last week, thanks to a returning sunspot group. This, when added to sunspot region 3098, pushed the SFI to 152 on the 11th. The returning group, which has now been updated to active region 3102, isn’t quite the threat it was on its last visit, […]
Propagation News – 11 September 2022
What a week we have just had! The Kp index stayed at four or more for most of the week thanks to an enhanced solar wind stream. This continued to stir up geomagnetic activity with minor ,G1, storm conditions. Visible aurora have been reported at higher latitudes. Sunspot region 3089 has now rotated behind the […]
