GB2RS Propagation News
Propagation News – 26 February 2023
Last week was characterised by many low- and medium-level solar flares. At the time of writing, in the past seven days the Sun has emitted more than 60 C-class flares, six M-class flares and one X-class flare. The X-class flare coincided with the measurement of the solar flux index meaning an erroneous reading of 343 […]
Propagation News – 19 February 2023
Last week was interesting as we had an X-class solar flare, and a significant geomagnetic disturbance, as well as good HF conditions at times. An impulsive X1.1 solar flare was observed around active region 3217 in the southeast quadrant of the Sun at 1548UTC on the 11 February. The flare did not appear eruptive, so […]
Propagation News – 12 February 2023
The solar flux index rose again this week with the arrival of more sunspots. By Thursday, the SFI had reached 192, up from 135 the week before. However, there has been some flare activity with minor C-class and some M-class flares, mainly from active region 3213. None of these have erupted in an Earthward direction […]
Propagation News – 5 February 2023
Well, what a difference a few weeks make. On the 15 January, the solar flux index was at 234 and the Sun was peppered with spots. This week, on Thursday, the SFI was at 134 and the solar surface looked like it was at sunspot minimum again. The Sun has also been mainly geomagnetically quiet, […]
Propagation News – 29 January 2023
As of Thursday, we had a strange situation whereby all the current visible sunspots were in one hemisphere of the Sun. But this isn’t that unusual, as the two hemispheres usually peak at different times in the cycle. In a couple of years, we may well have the reverse situation. Nevertheless, the solar flux index […]
Propagation News – 22 January 2023
The solar flux index has continued to remain above 200, which is good news for the upper HF bands. 10m continues to surprise people with 10m FM around 29.600MHz bringing transatlantic contacts to many. AM around 29.000MHz is also bringing some exciting contacts. The Sun is currently peppered with spots, with the recent solar flux […]
