Hi Jerry,
Thanks for pointing out that I'd used incorrect terminology in my last post.
I should pointed out that it really multipath when the HF signals for example traverse
over the North Pole for example, or near? the aurural zone, and they end up getting
badly hammered.
I've attached a spectrogram of? a couple of WSPR traces as seen in KL7 from Europe on 20m.
No amount of checksums are gonna decode that on data signals ;)
That's typical most days on such a path.
On? bad day you can see the traces get mangled by 30Hz of more.
--
- 73 de Andy -
