[amsat-bb] AO-07

[Greg D]

Hi Joe,

My recollection is that there were some informal propagation studies
done on the old RS-10/11 and RS-12/13 satellites.  I found a few
references back in the Amsat archives.  See:
http://www.amsat.org/amsat/articles/satgen/idx050.html

Good topic needing an update, even an informal one.

Greg  KO6TH


Joe wrote:
> I wonder if anyone has actually done any studies after all these years
> on propagation's through this bird. AO-07
>
> I find it in the past couple weeks soo interesting on how varied the
> level of signal strengths can be on very similar passes.
>
> Where one pass, vs another are almost identical, yet one will be full
> of stations, and the next one all I hear is my own CQ.
>
> BUT...  that difference can be all made by just who is actually on the
> air.
>
> BUT....  then take two passes that are almost identical, and ignore
> all the other people, and pay attention to just your own signal, where
> on this pass my sig is soo weak that 90% of the time I'm hearing
> nothing, then next pass that is very similar I am actually moving the
> S meter the signal is sooo strong.
>
> And in theroy, this is all Line Of Sight communications, the losses
> from one pass vs another should be the same.
>
> Yes polarity can be an issue, but I cant see it being the reason for
> the whole pass duration.
>
> Very Interesting!
>
> Joe WB9SBD