GB2RS Propagation News
Propagation News – 1 March 2026
We have just had a period of zero sunspots – the first time since June 2022. However, don’t worry. This may be a sign of things to come but this zero spot period was short-lived. There are now signs of sunspots appearing over the Sun’s eastern limb with old region 4366, last seen on 11 […]
Propagation News – 22 February 2026
We had a week of relatively low solar flux indices and mostly settled geomagnetic conditions. While the solar flux index fell to be in the 117 to 129 range, the Kp index was mostly in the twos and threes. This was after the weekend’s geomagnetic disturbance due to a large coronal hole that expelled solar […]
Propagation News – 15 February 2026
It has been a good time for HF DX. Settled geomagnetic conditions and a fairly high solar flux index has meant the ionosphere has had time to shine. With the Kp index not exceeding 4.33, and generally being in the ones and twos, coupled with a solar flux index in the 160s, this has meant […]
Propagation News – 8 February 2026
Last week was characterised by a high solar flux index but with a succession of X-class solar flares from active region 4366 on the Sun. Luckily, none of these resulted in a coronal mass ejection so we got away lightly. The solar flux index stood at 178 on Tuesday, 3 February with the result that […]
Propagation News – 1 February 2026
We had a much quieter week Sun-wise, with fewer geomagnetic disturbances and a decreasing solar flux index. Last week started at 153 but decreased to 133 by Wednesday. The Kp index started the week at 2.33 and, apart from an excursion to 5.33, was below 4.33 all week. The 5.33 value was due to an […]
Propagation News – 25 January 2026
Last week featured a massive aurora that couldn’t have been predicted in the previous report. The cause was a large Earth-directed coronal mass ejection on Sunday, 18 January at 1808UTC. The solar wind speed was above 1,100km per second, so the impact on the Earth arrived sooner than expected. The result was that the Kp index […]
