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European Pirates and Private Stations / Re: Gale in the ionosphere layers today Sun. 24 May 2020
« on: May 24, 2020, 1753 UTC »I have also not noticed this at my QTH either... but it could be that Ray is at exactly the right distance from, for example, Holland, to get a combination of E and F skip from the same station, simultaneously, this can make signals stronger or weaker, depending on phasing and refraction paths.... and considering we are talking about two completely different ionospheric layers, they could affect the signal in complex and sudden ways. It could be other factors though.
Understood.
I am hearing Doppler-like effects and it is noticeable when listening to AM with a synchronous detector on several signals in the 48 meter band, so it's not just one station's VFO shifting; they are all doing this. With the use of the synchronous detector, you will hear a momentary distortion of the signal, as the effective carrier frequency shifts and as the PLL goes out of lock briefly, then comes back into lock after 0.5-1.5 seconds or so. I assume that SSB or CW would go through something similar.
