On 07/09/2013 04:25 AM, Joseph Gwinn wrote:
Yes, of course, but I don't think I explained very well. The issue was
more economic than technical.
There isn't much spare space, weight, or power in the birds, technology
moves rapidly, and the satellite companies don't want to have expensive
satellites that no longer generate rental income because something
became obsolete. So they ruthlessly simplify. A bent pipe will handle
any possible band-limited modulation, no matter if currently known or
not, and so is the safest solution.
Now WAAS may have become important enough to command dedicated
hardware, but that came later, to the degree it came at all.
A bent pipe is more generic, but there are limits to how much you can
alter the output frequency too.
If the payload is long-term contracted already when the bird is in the
planning stage, then it is another issue.
Cheers,
Magnus
_______________________________________________
time-nuts mailing list -- [email protected]
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
