RSSGB2RS Propagation News

Propagation News – 18 June 2017

| June 16, 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 […]

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Propagation News – 11 June 2017

| June 9, 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 […]

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Propagation News – 4 June 2017

| June 2, 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 […]

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Propagation News – 28 May 2017

| May 26, 2017

Last week’s forecast of unsettled geomagnetic conditions at the beginning of the week and more settled conditions later was fairly accurate. The K index at high latitudes rose to five on Monday, but settled down to two and three by Thursday. At middle latitudes it was very settled after Wednesday. The solar flux index was […]

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Propagation News – 21 May 2017

| May 19, 2017

NOAA’s prediction that the solar flux index would tend towards 80 last week turned out be wrong, as it stayed steadfastly in the low 70s. However, the prediction of poor geomagnetic conditions turned out to be right, with the K index hitting four on Wednesday, with worse to come. Nevertheless, there was DX to be […]

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Propagation News – 14 May 2017

| May 12, 2017

Last week the solar surface was pretty much bare, other than a tiny speck of a sunspot at mid latitude. This sent the solar flux index down below 70 – the first time it has been there for some time. Given that it never drops much below about 66, even at sunspot minimum, this gives […]

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