GB2RS Propagation News
Propagation News – 4 October 2020
We had yet another week with zero sunspots and poor conditions. Matter from a solar coronal hole pushed the Kp index to six late on Sunday, the 27th, with corresponding detrimental effects on the ionosphere. The solar wind stream climbed to above 600km/s with the Bz component of the interplanetary magnetic field periodically pointing south. […]
Propagation News – 27 September 2020
We finally broke our long-running record of zero sunspots last week thanks to active region 2773. This new Solar Cycle 25 spot appeared over the Sun’s limb and pushed the solar flux index to 73. The end of the week also saw unsettled conditions due to a high-speed stream from a coronal hole. The hole […]
Propagation News – 20 September 2020
We had another uninspiring week with zero sunspots. However, there was DX to be had, with many Chiltern DX Club members reporting openings on 17 and 15 metres for well-equipped stations. Clive, GM3POI reported hearing India, Japan, Lebanon and South Africa on 17 metres and South Africa, Kenya, Oman and Kuwait on 15 metres. This […]
Propagation News – 13 September 2020
It was another week with zero sunspots, but the upside was that we had settled geomagnetic conditions. The maximum Kp index of two, but more often than not just one, was brought about by an absence of coronal holes last week. This meant that the ionosphere was pretty stable, with Maximum Useable Frequencies (MUFs) over […]
Propagation News – 6 September 2020
This last week was characterised by unsettled geomagnetic conditions caused by an incoming high-speed stream for a solar coronal hole. We warned of this in last week’s report, but in view of the small size of the coronal hole, we didn’t really expect its effects to be quite so severe. The solar material impacted the […]
Propagation News – 30 August 2020
It was a quiet week, with zero sunspots and relatively quiet geomagnetic conditions and a maximum Kp index of three. After the new sunspots appeared over the past few weeks it did look like Solar Cycle 25 was getting under way. But now it looks like we may have to wait a little longer, languishing […]
