[amsat-bb] Re: This weekends ISS Shadow-Beacon Plasma Experiment

Bob Bruninga bruninga at usna.edu
Sat Nov 12 06:25:52 PST 2011

> Only just seen this, hadn't realised there was a Space 
> Plasma experiment using the 145.825 MHz packet system
> http://knts.tsniimash.ru/Shadow/en/Overview.aspx

I couldnt find the details about how they are going to capture data.  Is it by Hams manually capturing files and then emailing them in?

At first blush one would consider having all the APRS ground statis be IGates and send it all in, but that will not work, because the APRS Internet system (APRS-IS) filters out all dupes and only forwrds one copy.  So when 20 statiosn receive the same thing (desired for this experiment) only one copy makes it through the internet.

Maybe they have a different plan...

But otherwise an interesting expriment.

Bob, Wb4APR

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