What a difference a week makes when it comes to HF propagation! This last week has been characterised by solar flares, coronal mass ejections (CMEs), and an elevated Kp index. Put together, this has resulted in dire conditions on HF, reminiscent of a solar minimum. A visible aurora was seen from the UK once again […]

In the first week of October, the 10m band began to show what it is capable of. With a solar flux index in the high 200s and calm geomagnetic conditions, DX was plentiful. Nick, VK9DX on Norfolk Island was audible on SSB all morning on Wednesday 2 October and only wanted to work G stations. […]

Solar activity is back to moderate levels with an M3.7 solar flare detected on 22 September. Newly assigned AR 3835 in the south-east quadrant is the main source, and the event looks to have thrown a stream of plasma into space. The latest model suggested a possible passage near our planet by the 25th and […]

It was a topsy-turvy time for HF propagation last week with a declining solar flux index and geomagnetic disturbances thanks to coronal mass ejections (CMEs) from the Sun. The solar flux index declined to the mid-160s, and the Kp index had a couple of excursions to more than 7. These were due to CMEs and […]