[amsat-bb] Re: PCSAT-1 over Europe

["Robert Bruninga" <bruninga@xxxxxxxx>]

> I wonder how successful digi'ing via PCSAT 
> using a TH-D7 has been?
>
> I believe that its down purely to usage here 
> in Europe as she appears to get hit multiple 
> times by the same stations?

Yes, we noticed that 2/3rds of all PCSAT-1 users are in Europe
in a SMALL footprint.  While in the USA, there are only half as
many users but spread out over a much larger area.  SO the
congestion must be maybe 4 times worse over there in Europe..

> Maybe this stops the 5watt stations from actually 
> being relayed??

Yes, any collision will cause the weaker signal to not be heard.
And then the stations just keep trying, further making the
problem worse.

We need to find a way to cut back the throughput in Europe,
because it is always over Europe that PCSAT-1 dies towards the
end of its daylight period.    We have asked all PCSAT-1 users
to adhere to the User Service Agreement that was posted:

http://www.ew.usna.edu/~bruninga/pcsat/contract.txt

Which is posted on the PCSAT web page:
http://www.ew.usna.edu/~bruninga/pcsat.html

Bob, WB4APR

_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb