GB2RS Propagation News
Propagation News – 12 November 2017
As forecast, last week saw auroral conditions and the Kp-index rise to six as the result of incoming solar material from yet another coronal hole. The Aurora Borealis was even visible from northern England and Scotland. Coronal holes are lower-energy areas on the Sun with open magnetic field lines that allow tonnes of material to […]
Propagation News – 5 November 2017
Last week saw more settled geomagnetic conditions and, although there were few sunspots, the ionosphere was able to offer DX contacts. The CQ Worldwide Contest saw 15 metres and even 10 metres providing openings at times. With the solar flux in the low 70s it was the seasonal upturn, due to change in ionospheric chemistry, […]
Propagation News – 29 October 2017
Last week was once again a mixed bag, with good HF openings at times, and depressed maximum usable frequencies (MUF) at others. Quieter geomagnetic conditions on Sunday and Monday saw good openings up to and including 28MHz. But the arrival of solar material from a coronal hole on Tuesday saw much more unsettled conditions. An […]
Propagation News – 22 October 2017
The latter half of last week saw more settled geomagnetic conditions with the Kp-index declining to one and even zero. This helped the HF bands enormously and there were openings up to and including 12 metres. The upper bands were full of signals, reflecting the better HF conditions associated with autumn. Higher critical frequencies also […]
Propagation News – 15 October 2017
Last week saw a mixed bag in terms of HF propagation. At the beginning, quiet geomagnetic conditions saw the HF bands alive with DX. With the K-index hovering between zero and one, the ionosphere was showing what it can do during a typical autumn day. There were openings up to and including 12 metres, with […]
Propagation News – 8 October 2017
Last week saw sunspot activity remain fairly stable, with the solar flux index hovering in the upper 80s. There were no solar flares and so no associated coronal mass ejections either. On the whole, geomagnetic conditions were a little more settled than they have been of late and other than a K-index of four on […]
