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Mastodon.Radio is a space for the Amateur (Ham) Radio community, anyone interested in Shortwave Listening (SWL), etc. Come join us and talk radio, technology, and more!

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Diane Bruce VA3DB

@VE2UWY @zazzoo@wonkodon.com Yes! The U.S. military used to do this as well. (Not sure they still do)
The doppler must be wicked. I have done aurora (for the non ham, bouncing signals off of the aurora. same deal ionized gases)
the doppler on aurora is very bad making voice more difficult to do.

@va3db @VE2UWY @zazzoo The ionized trail itself is not moving especially fast, which is what is used for communication.

@jmorris @VE2UWY @zazzoo@wonkodon.com I was thinking of UHF actually. It's a problem for us satellite operators and you can hear it in a car moving. Every done the SSB mode listening to a repeater and hearing the pitch change? It's wild ;) So I figure there is a limited range for meteor scatter as well?

@VE2UWY @va3db @zazzoo I haven’t listened to a repeater like that but now I will try it. I’m no expert in meteor scatter but AFAIK the Doppler shift is within the pass band overall - there is spread, possibly similar to aurora. Btw I don’t know if people realize there is measurable Doppler on HF skip, especially during solar events, when the ionospheric layers change in height.

@jmorris @VE2UWY @zazzoo@wonkodon.com No it's not a lot, after all you aren't driving at satellite speeds, but you can hear the pitch change!