GB2RS Propagation News
Propagation News – 10 February 2019
Matter from a solar coronal hole pushed the Kp index to five in the early hours of Friday, the 1st, eventually resulting in much reduced maximum usable frequencies as the ionosphere was depleted. Signals on Saturday, the 2nd, were noticeably poorer, with even 14MHz struggling. There were also reports of very visible aurora around the […]
Propagation News – 3 February 2019
Last week was a mixed bag in terms of HF propagation. The solar flux index was a little higher at 74, helped by a sunspot group that has now rotated out of view. Geomagnetic conditions were very settled in the first half of the week with the Kp index often sitting at zero. It seems […]
Propagation News – 27 January 2019
This week we did get a new sunspot group, which pushed the solar flux index to 71 and the sunspot number to 18, reflecting one group with eight spots in it. But, as predicted last week, incoming matter from a solar coronal hole resulted in an elevated K-index and poor HF conditions on Wednesday, the […]
Propagation News – 20 January 2019
At the risk of sounding like a stuck record, the Sun remained spotless this past week with a solar flux index stuck firmly around the 70 mark. Geomagnetic conditions were mostly settled with a maximum planetary K-index of four, although on average it was usually much lower than this, around one or two. Many are […]
Propagation News – 13 January 2019
This week saw relatively-settled HF conditions after the effects of a geomagnetic storm that impacted Earth at the weekend had passed. The Kp index was mostly around one or two thanks to a reduced solar wind. A small solar coronal hole did become Earth-facing on Wednesday, the 9th, but its effects, if any, won’t be […]
Propagation News – 6 January 2019
A new sunspot appeared this week, although it belongs to outgoing cycle 24 and is therefore not a sign that the new cycle 25 is under way just yet. We may still have to wait until at least the autumn before that happens. Despite pushing the solar flux index up to 75 on Thursday we […]
