GB2RS Propagation News
Propagation News – 1 April 2018
As we move into April 2018 it is time to think about updating the latest smoothed sunspot number if you are using a VOACAP-based propagation prediction program. There are a number of different methods used to smooth or average sunspot numbers, but VOACAP recommends the adjusted SSN from the Solar Influences Data Centre in Belgium. […]
Propagation News – 25 March 2018
Last week was once again dominated by unsettled geomagnetic conditions, which didn’t help HF propagation. The K-index rose to five on Monday, the 19th, after a solar wind stream from a coronal hole, flowing faster than 550 kilometres per second, triggered a moderate G2 geomagnetic storm at higher latitudes. This can occur due to process […]
Propagation News – 18 March 2018
The Commonwealth Contest, held last weekend, proved an ideal opportunity for UK stations to work some choice DX without the massive pile-ups you might get in other contests. Despite a large, elongated coronal hole on the Sun triggering a geomagnetic storm on the night of the ninth, there was still HF DX to be had, […]
Propagation News – 11 March 2018
Quieter geomagnetic conditions helped improve HF propagation this week. At times the K-index was actually zero, thanks to a respite from the continual coronal holes on the Sun that have caused disruption. The solar flux index continued to hover around the high 60s due to a lack of visible sunspots. Despite this there was plenty […]
Propagation News – 4 March 2018
As we move into March, HF conditions should be well under way to being more spring-like. As the days gets longer and the nights get shorter, the LF and MF bands can become less attractive and the HF bands can show a little more life for a little longer into the evening. March is also […]
Propagation News – 25 February 2018
Despite warnings in the popular press that a massive solar flare was likely to cause chaos on Earth, we managed to survive! In the event, a coronal mass ejection, which was linked to the solar flare, caused the K-index to rise to five on Monday, the 19th, but conditions became more settled from Tuesday onwards. […]
