OK, I’ll admit my understanding of HF propagation is simplistic. If you want some cool embedded software doing, then I’m your man, but this signals in the aether lark is voodoo. Every time I think I understand what is happening I realise I’m actually pretty clueless.
So yesterday I was on the summit of Ben Ledi. A short and sweet hill, 750m ascent in 3.5km made my legs complain after 4 weeks larding about! Anyway conditions on 40m and 60m were dire with a capital D. QSB was extremely rapid on 60m and I was quite a weak signal with the few I worked. 40m was rubbish too with just a few strong signals heard. Yet Shannon VOLMET was S9+++ an RAF VOLMET was S9. I worked Mike GW0DSP and he was a good S9+ but most other stations were not brilliant either.
When I checked the Chilton ionosounder it showed the foF2 was up to 7MHz when I was active. There was a sudden drop at 1500z but I was packing away to avoid an incoming rain storm then. Looking at the ionoshpere data services I normally use would suggest things should have been much better than they were.
So can someone with a deeper understanding of how this bouncing radio off the sky works please provide one very confused embedded software chap with some clue please?