GB2RS Propagation News
Propagation News – 2 April 2017
Last week was a mixed bag. As predicted we had geomagnetic storming, thanks to the effects of a large coronal hole and its associated high speed solar wind stream, but we also had some good HF conditions at times. With the solar flux in the low 80s, propagation was dominated by the impact of solar […]
Propagation News – 26 March 2017
Last week’s predicted geomagnetic storm materialised on cue, sending the K index up to five on Tuesday. The storming continued right through Wednesday into Thursday. There was an initial ionospheric enhancement late on Tuesday, but it didn’t last long. Maximum useable frequencies were then adversely affected on Wednesday with noisy bands and even 20 metres […]
Propagation News – 19 March 2017
Despite zero sunspots and a solar flux index of only 70, there was good DX to be had last week. This was helped by more settled geomagnetic conditions over a period of days, thanks to a lack of coronal hole activity. The RSGB Commonwealth Contest saw UK amateurs making contacts into all parts of the […]
Propagation News – 12 March 2017
In the last report we said the ongoing disturbed geomagnetic conditions may have settled, with a predicted K-index of two. Unfortunately, this didn’t happen as early as expected and the beginning of the week saw a K-index up as high as five. This had an adverse effect on maximum useable frequencies, with a very unsettled […]
Propagation News – 5 March 2017
We were pleased to get the HF propagation prediction pretty much spot on last week. While Monday and Tuesday were reasonably settled, Wednesday saw the effects of solar material from a large coronal hole as it hit the Earth. The K-index leapt to five around lunchtime and there were reports of HF openings up to […]
Propagation News – 26 February 2017
Last week was a mixed bag as far as HF propagation is concerned. We had a solar flux index that got as high as 83, but this was tempered by unsettled geomagnetic conditions at times. The planetary K-index his four on Wednesday due to incoming plasma from a large solar coronal hole. And it varied […]
