GB2RS Propagation News
Propagation News – 17 November 2024
The solar flux index took a downturn this week, ending up at 150. The visible solar disk is looking rather bare compared with a couple of weeks ago. This is the lowest SFI value since the 2 May 2024, but it is only a matter of time before we see another sunspot appear as we […]
Propagation News – 10 November 2024
We had another week of high solar flux and good conditions on HF. Solar activity remained at high levels thanks to an impulsive X2.3 solar flare around active region 3883 at 13:40 UTC on the 6 November, but the event was not responsible for a coronal mass ejection (CME). The Kp index remained below 4.5 […]
Propagation News – 3 November 2024
Last weekend’s CQWW SSB contest showed just how good autumnal HF conditions can be. Many contesters worked more than 100 countries or DX entities on each and every HF band. With a solar flux index of 238 on Saturday and 246 on Sunday, plus low Kp indices all weekend, it was about as good as […]
Propagation News – 27 October 2024
Last week’s solar conditions couldn’t have been much better. We had a week of high solar flux indices, relatively calm geomagnetic conditions and, other than an X-class solar flare, not much else to report. The solar flare originated from active region 3869 and reached a strong X3.3 in the early hours of 24 October. This […]
Propagation News – 20 October 2024
The past week has been characterised by a low geomagnetic Kp index and excellent conditions on HF, including the 10m band. With a solar flux index between 168 and 195, and a Kp index that never rose above four, conditions have been better than the previous week, which suffered from the bad effects of solar […]
Propagation News – 13 October 2024
What a difference a week makes when it comes to HF propagation! This last week has been characterised by solar flares, coronal mass ejections (CMEs), and an elevated Kp index. Put together, this has resulted in dire conditions on HF, reminiscent of a solar minimum. A visible aurora was seen from the UK once again […]
