RSSGB2RS Propagation News

Propagation News – 21 June 2015

| June 19, 2015

The sun has been relatively clear this week, apart from sunspot group 2367 that pushed the solar flux index to 136. Geomagnetic conditions have been reasonably quiet with the Kp index mostly at two to three, with two instances of it hitting four. Nevertheless, summer conditions in the northern hemisphere have taken their toll with […]

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Propagation News – 14 June 2015

| June 12, 2015

HF propagation during last weekend’s field day was pretty much as predicted. Conditions were settled, but there wasn’t an awful lot of DX to be had, with F2 layer openings topping out at 21MHz at times. This was mainly due to summer HF conditions with lower daytime MUFs. The beginning of the week saw the […]

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Propagation News – 7 July 2015

| June 5, 2015

We are now truly into the summer propagation season in the northern hemisphere, which is characterised by lower maximum usable frequencies during the day, compared with winter, but higher MUFs at night. Solar activity has continued to be low, with a solar flux index of around 100. There have been no major flares of note […]

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Propagation News – 31 May 2015

| May 29, 2015

As predicted, the sun was a little more settled this week, with the solar flux index being below 100. There were no X-class solar flares to black out HF either. Geomagnetic conditions were also settled with the Ap index at middle latitudes remaining in single figures. The Kp index, which is a better indicator of […]

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Propagation News – 24 May 2015

| May 22, 2015

This week has been a mixed bag in terms of solar activity. As predicted, the beginning of the week was unsettled with the Kp index hitting six on the 19th. The solar flux index started the week at 120, but by Thursday it had declined to around 106. Next week it is expected to remain […]

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Propagation News – 17 May 2015

| May 15, 2015

It looks like we got the HF forecast for last week about right. The Kp index stormed up to six on Wednesday 6th, remaining at four for the whole day. This was due to an enhanced solar wind stream above 700 km/s and a southward-facing Bz component of the interplanetary magnetic field. This negative Bz […]

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