GB2RS Propagation News
Propagation News – 9 July 2017
Earlier last week the sun’s surface looked clear. There were no sunspots at all and the solar flux index remained in the low 70s. However, settled geomagnetic conditions helped make up for this with the K-index often at zero. Daytime D-layer absorption didn’t really help with the summer HF doldrums, but there were highlights in […]
Propagation News – 2 July 2017
This week NASA confirmed that we are heading for solar minimum, with the low point expected in 2019-2020. It also said that this may bring more long-lived coronal hole activity. This should come as no surprise to radio amateurs as we have been reporting near-minimum solar flux index levels and the ongoing effects of coronal […]
Propagation News – 25 June 2017
Last week the solar flux index remained steadfastly in the mid-70s. There was only one very minor S class solar flare, on Sunday, 18 June. As predicted, geomagnetic conditions were unsettled on the Sunday, but improved as the week went on. During a week when we had the solar solstice, HF conditions were subdued. This […]
Propagation News – 18 June 2017
Last week, the solar flux index stayed steadfastly in the mid-70s. After Sunday the 11th, geomagnetic conditions were also reasonably settled, with the K-index mainly around one or two. The big HF news this week has been the ongoing sporadic E openings. These have affected all the HF bands, but are particularly noticeable on 10 […]
Propagation News – 11 June 2017
Last weekend’s National Field Day saw only average HF propagation, with a geomagnetic disturbance on the Saturday evening sending the K-index to four. Nevertheless, there was DX to be had, even if most of it was on 20 metres. G4ARN/P in Norfolk reported working Brazil on 20m using five watts, but the majority of their […]
Propagation News – 4 June 2017
Last week the solar flux index declined from the low 80s to 74. The sun was spotless, but propagation was dominated by strong geomagnetic storming on Sunday the 28th of May. Sky watchers across many northern locations reported visible aurora. This was due to the south-pointing Bz component of the interplanetary magnetic field, which coupled […]
