> 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?


An [EE]:  tag would be valid on this.

Search for "T Codes" invented / discovered by Dr Mark Tichener (spelling) of
Auckland University about a decade ago.
These are AFAIR (although I have never used them) self synchronising, self
clocking and resynchronise after an error in optimal time.
I have a friend who has a PhD from studying one aspect of them - I can refer
you to him if needs be but see what you find independently first.




      Russell McMahon
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