GB2RS Propagation News
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 […]
Propagation News – 19 February 2017
Last week brought mostly settled conditions and the HF bands benefitted as a result. With a solar flux index in the mid 70s, and a K-index never higher than two before Thursday, it was an opportunity for the ionosphere to shine. The maximum useable frequency was often just above 21MHz at times, bringing DX in […]
Propagation News – 12 February 2017
Last week, the hoped-for settled geomagnetic conditions materialised, but could have been better. After Monday, the K-index settled down to one or two for the rest of the week. HF conditions have been variable, rather than outstanding. There have been some 15 metre openings at times, but 20 and 17 metres have been more consistent. […]
Propagation News – 5 February 2017
Last week’s prediction about geomagnetically-disturbed conditions turned out to be correct, with the K-index soaring to five during the week. This resulted in visible aurora at high latitudes, as local midnight is often the time when aurorae and disturbed conditions hit their peak. There were three small sunspot groups visible on the solar surface on […]
