GB2RS Propagation News
Propagation News – 15 January 2023
It seems X-class solar flares appear like buses; you wait for ages and then three turn up at once! Over the last week, we have had X-class flares on the 7, 9 and 10 January. The latest, at the time of writing, saw sunspot region 3186 rotate into view off the Sun’s northeast limb and […]
Propagation News – 8 January 2023
Firstly, a happy New Year to all our listeners. Let’s hope that the propagation gods continue to smile on us in 2023! The solar flux index is back near the 150 mark having seen a low of 128 on 23 December and a recent high of 165 on New Year’s eve. Geomagnetic conditions had been […]
Propagation News – 25 December 2022
The solar flux index stayed around 150 over the last week, bringing some choice DX to the higher HF bands. However, solar flares continue to plague us, bringing short-lived band fade-outs at times. These have all been moderate C and M-class flares. It is uncertain as to whether or not there will be an X-class […]
Propagation News – 18 December 2022
Things hotted up last week with a healthy increase in sunspot activity. The number of sunspots ramped up, giving us a solar flux index of 165 by Thursday. The other upside was the fact that geomagnetic conditions were quite settled with the Kp index remaining between one and three all week. There were some downsides. […]
Propagation News – 11 December 2022
There’s an old Chinese curse that says: “May you live in interesting times”. Well, the last week has been very interesting from an HF propagation perspective! The solar flux index increased from 111 on 30 November, to 148 on Thursday, the 8th. During that time, we had more than 50 C-class solar flares and two […]
Propagation News – 4 December 2022
Last week was characterised by unsettled geomagnetic conditions that had not been forecast. The Kp index fluctuated between three and five nearly all week, resulting in reduced HF propagation, especially over polar paths. The solar wind just refused to abate with speeds over 600km/s being commonplace. A southward-facing Bz interplanetary magnetic field just added to […]
