GB2RS Propagation News
Propagation News – 28 January 2024
We dodged a bullet last week when a coronal mass ejection, or CME, was predicted to be heading our way. In the end, it came to nothing. The CME observed on the 20 January was expected to pass Earth and deliver possible G2 storm conditions. But a solar wind enhancement, possibly associated with the plasma […]
Propagation News – 21 January 2024
We had yet another week with good solar conditions which, at this point in the cycle, is good news. The solar flux index remained in the 170s to 180s range and the Sun is currently peppered with spots. The Kp index never got above 3.33 and that was only for one three-hour period on January […]
Propagation News – 14 January 2024
We couldn’t have asked for better solar conditions last week. We had a low Kp index that never got any higher than 2.67, and a solar flux index that started the week at 167 and then rose to 186 by Wednesday. So, at first glance, this looks like ideal conditions for HF. However, we are […]
Propagation News – 14 January 2024
Welcome to the first HF propagation report of 2024—it looks like it will be business as usual! A massive X5-class solar flare occurred on 31 December 2023. Luckily, this happened at 2155UTC, so didn’t affect the ionosphere over the UK, but it did launch a large coronal mass ejection, which was forecast to possibly hit […]
Propagation News – 24 December 2023
We filed last week’s GB2RS propagation report and, shortly after, we had the biggest X-ray solar flare event this cycle! This just shows how hard it is to predict solar activity and why long-term HF predictions are problematic. Anyway, back to the solar flare which occurred at 1702UTC on the 14 December. This was an […]
Propagation News – 17 December 2023
We had a fairly settled time last week with only the solar wind and some solar flare activity to contend with. Sunspot region 3514 produced a moderately strong M5.8 solar flare on the 14 December. This event was responsible for a coronal mass ejection, or CME, but that was directed to the west and missed […]
