Conversation

Notices

1. Embed this notice
   Diane Bruce VA3DB (va3db@mastodon.radio)'s status on Friday, 11-Aug-2023 02:01:58 JST Diane Bruce VA3DB

   • Zazzoo 🇨🇦
   • Harris✔︎

   @VE2UWY @zazzoo 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.

   • James Morris likes this.
   • Embed this notice
     James Morris (jmorris@social.kernel.org)'s status on Friday, 11-Aug-2023 02:03:27 JST James Morris

     in reply to

     • Zazzoo 🇨🇦
     • Harris✔︎
     @va3db @VE2UWY @zazzoo The ionized trail itself is not moving especially fast, which is what is used for communication.
   • Embed this notice
     James Morris (jmorris@social.kernel.org)'s status on Friday, 11-Aug-2023 02:17:49 JST James Morris

     in reply to

     • Zazzoo 🇨🇦
     • Harris✔︎
     @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.
   • Embed this notice
     Diane Bruce VA3DB (va3db@mastodon.radio)'s status on Friday, 11-Aug-2023 02:17:50 JST Diane Bruce VA3DB

     in reply to

     • Zazzoo 🇨🇦
     • Harris✔︎
     • James Morris

     @jmorris @VE2UWY @zazzoo 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?