GB2RS Propagation News
Propagation News – 27 December 2020
HF conditions were not terribly good over the last week with maximum usable frequencies down in general. The best DX has been on 40m, especially around greyline times, although there has been a little winter Sporadic-E activity on 10 metres as well that has seen Italy and Spain appearing on FT8, as well as Brazil […]
Propagation News – 20 December 2020
We’ve had another week of lacklustre sunspot activity. The solar flux index has been pegged at around 82, caused by the two tiny sunspots in active region 2793. Having said that, a lack of coronal hole activity has meant that geomagnetic conditions have been settled, with a maximum Kp index of two, but more often […]
Propagation News – 13 December 2020
We said last week that it would be hard to predict what would happen over the next seven days – and that turned out to be true. The coronal hole we mentioned last week didn’t really amount to much, and sunspot region 2790 didn’t either. As a result, the solar flux index fell to 82 […]
Propagation News – 6 December 2020
What a great week it was for HF propagation. We started it off with the CQ Worldwide CW HF contest, which saw some DX openings up to 28MHz and solid DX being worked on 21MHz. The only downside was an M-class solar flare, which was launched off the Sun on Sunday. It was a big […]
Propagation News – 29 November 2020
Last week represented a good example of how solar cycle 25 is progressing. We started the week on the 22nd with a solar flux index, SFI, of 88 and a sunspot number of 35. Just to recap, that doesn’t mean there were 35 sunspots, as we count each sunspot group as 10 and each spot […]
Propagation News – 22 November 2020
Last week was not bad for HF propagation, but probably not as good as the previous period. The solar flux index remained in the mid-to-high 70s, but the upside was that we had quiet geomagnetic conditions, which helped settle the ionosphere. The result was that maximum usable frequencies over 3,000km remained quite high, with 12 […]
