RSSGB2RS Propagation News

Propagation News – 22 January 2017

| January 20, 2017

We saw a couple of sunspots last week, but they weren’t enough to make a major difference to HF propagation. This was due in part to a raised K-index, thanks to solar material from a recurrent coronal hole. NOAA released a geomagnetic storm warning for the 18th and 19th. The solar index remained in the […]

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Propagation News – 15 January 2017

| January 13, 2017

The predicted poor geomagnetic conditions last week were not quite so bad, due to the incoming high speed stream from a coronal hole having a mostly north-facing Bz field. This was less likely to couple with the earth’s magnetic field and we didn’t see the very high K indices and poor auroral conditions we expected. […]

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Propagation News – 8 January 2017

| January 6, 2017

Firstly, a happy New Year to all. We’ve got off to a bad start with a massive coronal hole on the sun that has rewarded us with dire predictions for the period up to 8 January. We can expect the K-index to hit four or five at times with a consequent lowering of maximum useable […]

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Propagation News – 25 December 2016

| December 23, 2016

This week we have an extended propagation bulletin that takes you through to January 8th. HF propagation will continue to be relatively lacklustre, with the solar flux index staying in the mid to high 70s. Geomagnetic conditions have been unsettled at times, thanks to recurrent coronal hole activity. We will have a fairly quiet week […]

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Propagation News – 18 December 2016

| December 16, 2016

This week we have a slightly different approach to the HF propagation news. We want to help you and your family contact Santa’s elves in Lapland, Finland. The station OF9X is once again on the air this Christmas from Santa Claus Land in the Arctic Circle. Twelve elves are operating OF9X, which stands for ‘Old-Father-Nine-Christmas’, […]

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Propagation News – 11 December 2016

| December 9, 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 […]

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