GB2RS Propagation News
Propagation News – 22 August 2021
We had another week of low sunspot numbers, but generally settled geomagnetic conditions. The solar flux index generally stayed in the range of 73-75, which is nothing to get too excited about. The Kp index hit a maximum of three, but was more often at zero or one. Maximum usable frequencies over a 3,000km path […]
Propagation News – 15 August 2021
We had another week of minimal sunspot numbers, a low solar flux, but quiet geomagnetic conditions. As a result, DX was a little harder to find. We did have a low-level C-class solar flare on August the 9th that erupted from a plage region on the Sun. Whether this was a precursor to a sunspot […]
Propagation News – 8 August 2021
The last week looked like we were back at solar minimum again! With the solar flux declining to 71, and the sunspot number at 14 on Thursday, it hardly looks like things are improving. This was coupled with news from NASA that they have revised their projections for Solar Cycle 25. NASA heliophysicists at the […]
Propagation News – 1 August 2021
Last week the Sun was bursting with sunspots, with a solar flux index in the high 80s. But, by Thursday, we were looking at a different picture, with zero sunspots and a solar flux index of 79. We also had a geomagnetic disturbance, thanks to the arrival of a high-speed stream from a coronal hole […]
Propagation News – 25 July 2021
Sunspot numbers were down at the start of the week, but increased dramatically as the week went on. By Thursday the solar flux index was up to 94 with a sunspot number of 86. There were six active regions visible on the Sun. Although many of these sunspots were quite small and not very complex, […]
Propagation News – 18 July 2021
The solar flux index remained in the 70s last week, reflecting the lack of decent sunspots. What spots we did have were both minuscule and un-noteworthy. The high-speed wind stream from a large solar coronal hole impacted the Earth a little later than predicted. In the end, it hit us during the late afternoon and […]
