Here's one...

"two-frequency coherent-phase encoding"
There's more info in this ("http://www.phrack.org/show.php?p=37&a=6")old issue of phrack.

Just curiouse...
Are you using a PIC?
What type of modulation are you using?

Have fun!

-
end

--- Peter Mcalpine <pmcalpin@BIGPOND.NET.AU> wrote:
>Hi all,
>doing a project at the moment using low power 433MHz
>transmitters and in the search for the most robust
>format I can get. Data overheads not really a problem
>and speed is also not a concern.
>
>At present I am using manchester encoding at 1000bps
>and it seems quite good.
>
>What other schemes would people recommend I trial?
>
>Regards and happy holiday season :)
>Peter Mcalpine
>
>--
>http://www.piclist.com hint: The PICList is archived three different
>ways.  See http://www.piclist.com/#archives for details.

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