GB2RS Propagation News
Propagation News – 1 November 2015
It has been another week with great HF conditions. Last weekend gave many people the chance to work DX on 10 metres in the CQ Worldwide contest. The solar flux index stayed above 110 and geomagnetic conditions were generally quiet, especially compared with the problems we had with high speed solar wind streams last month. […]
Propagation News – 25 October 2015
This week has shown just how good the upper HF bands can be. A healthy solar flux index of 120 or more, plus settled geomagnetic conditions, has seen maximum usable frequencies rise to more than 30MHz. As a result, a lot of DX has been heard and worked, especially on 10 and 12m. This weekend […]
Propagation News – 18 October 2015
We’ve had another week of unsettled HF conditions. Geomagnetic storming was observed on Monday at high latitudes as a high-speed solar wind stream, flowing from a geo-effective coronal hole, caused problems. By Wednesday the Kp index peaked at five and the bands were left noisy with only fairly local European stations audible on 40-20m. The […]
Propagation News – 11 October 2015
The sun severely disrupted the HF bands again this week. A high-speed solar wind stream with a south-facing Bz magnetic component continued to interact strongly with the Earth’s geomagnetic field. Strong, G3 level geomagnetic storming was observed at high latitudes and the K index hit seven on Wednesday evening. There were long periods on Wednesday […]
Propagation News – 4 October 2015
Better autumnal HF conditions continued this week with more settled geomagnetic conditions and a healthy solar flux index that reached 131 on Thursday. However, the solar proton flux increased slightly that day, which may have caused some problems. During such an event, the Earth can be showered with highly-energetic solar particles. When these protons arrive […]
Propagation News – 27 September 2015
Starting on a happier note, it has been good to see the HF bands becoming more active this week as we head into autumn. With a solar flux index of around 105, fifteen metres has been showing promise with the YV5B beacon in Venezula and 4U1UN beacon in New York romping in on 21.150MHz during […]
