GB2RS Propagation News
Propagation News – 12 November 2023
Last week was characterised by very unsettled geomagnetic conditions which took their toll on the high-frequency bands. The Kp index hit seven on the 5 November, sparking visible aurora all over the UK. This also caused auroral conditions on the bands with many people commenting on the auroral flutter on the lower HF bands and […]
Propagation News – 5 November 2023
The last two weeks have not been too bad for HF propagation, but not particularly good either. The solar flux index hit lows of 119 on the 22 October and 121 on the 24th, but subsequently recovered and stood at 159 on Thursday 2 November. This at least allayed the fears of some amateurs that […]
Propagation News – 29 October 2023
It was not a good week for the ionosphere with the Solar Flux Index, or SFI, falling to less than 130, plus some disturbed geomagnetic conditions as well. On Wednesday the 24 October, the SFI fell to 121, while the following day the Kp index hit 4.33 thanks to a coronal mass ejection from a […]
Propagation News – 22 October 2023
We had a quieter week, with both lower sunspot numbers and better geomagnetic conditions. The Solar Flux Index was at 135 on Thursday the 19 October, down from 156 the week before. Let’s hope this is a temporary lull in Solar Cycle 25’s progression. We had no M-class or higher flares to contend with and […]
Propagation News – 15 October 2023
We had a period of low geomagnetic disturbance last week, which allowed the upper HF bands to shine. There were lots of reports of DX being worked on the 10m band as the Kp Index sat mainly in the ones and twos, with a maximum of Kp 3.33 for one three-hour period on the 9 […]
Propagation News – 8 October 2023
Last week progressed quite well from a solar point of view, at least until the morning of Thursday 5 October when the Kp index rose to five. But the Kp high was short-lived and only lasted for one three-hour reporting period. Until this point, it had been around one to three all week, which meant […]