[hfsig] last one, I think

[chris at yipyap.com]

So you've got a shared dictionary consisting of
a random stream of bytes that is delimited
by timestamps of some sort.

And your data looks like
0000000000000000000010000010000000000000000000000001
with '0' meaning 'skip this one'.

That's the kind of data stream that compresses really
well.

So your radio communication would be to
send across the satelite number, the starting timestamp
and this compressed stream of which bytes you
are shopping for.  Wrap it up in some error correction
and away it goes.

Work's over,  time to go home.

Chris 
kc0atc