Originally Posted by Mr_westie
Got links to the discussion that [SBE-1] is not 100%?
Here's the relevant thread discussing issues with the Futaba SBE-1 converter: http://forum.autoquad.org/viewtopic.php?f=27&t=951
Bottom line is that 2 people (including myself) have reported a "signal loss" issue with certain channel/position combinations, and no one has chimed in with contrary findings. There's a chance that both of us share some other setup issue which caused this, but that doesn't seem very likely (we're using different radios and even different signal inverters, also I have tried this with 2 different Rx, 2.4GHz and 72MHz).
Would be very interesting to know if a different S.Bus encoder would work. But test carefully on the ground, and maybe have a backup plan as well.
PPM does work nicely in the latest code, although at the moment there isn't an official release of the compiled firmware yet with working PPM support. But you can compile your own or ask someone on the forums to do it for you., and hopefully a new pre-compiled version is coming up soon since there have been some other good updates in the last couple weeks.