GB2RS Propagation News
Propagation News – 11 December 2016
This past week had been reasonably settled, geomagnetically, with the K-index generally being between zero and three at the beginning of the week. The noon-time critical frequency as measured by the Chilton ionosonde near Harwell on Tuesday was just over 6MHz, which meant 40m often struggled for contacts close in around the UK, but 15 […]
Propagation News – 4 December 2017
Last week was a mixed bag in terms of HF propagation. The solar flux index hovered around the 80 mark and the K-index was poor at the weekend, although a little more settled later in the week. Last weekend saw the CW leg of CQ Worldwide and the consensus was that conditions weren’t brilliant. We […]
Propagation News – 27 November 2016
This week NOAA, and us, got the HF propagation prediction wrong. The figures suggested that last weekend would be unsettled geomagnetically, but in fact conditions were actually much better. The K-index did eventually rise, but not until late Tuesday evening. The prediction for this weekend, as you either read or hear this report, remains uncertain […]
Propagation News – 20 November 2016
Last week, the solar flux index hovered around the 80 mark, with average sunspot counts reaching their lowest level in five years. With sunspot minimum predicted to be some time in 2018 or 2019, this is a taste of what we can expect for the time being. But it wasn’t all bad news, as geomagnetic […]
Propagation News – 13 November 2016
Last week saw DX being worked on HF as more-settled geomagnetic conditions allowed the ionosphere to strengthen. There were reports of US stations being worked on 40m before midnight, and DX contacts on 20m, 17m and 15m across the globe. The solar flux index remained in the high 70s, and the geomagnetic K index remained […]
Propagation News – 6 November 2016
Last week, the solar flux index remained in the mid to high 70s, but HF propagation was once again dominated by variable geomagnetic conditions. The first half of the week, which included the CQ Worldwide contest, was very unsettled with the K index at high latitudes peaking at seven. This drove down maximum useable frequencies […]
