Originally Posted by
George
UPDATE:
I checked the SBE-1 by connecting to a non-sbus rx and plugging the S-out into a hub on the plane, and it worked as intended. SO, it appears the SBE is "good" and works when used as designed, but does not work on the back-end of the Cortex to provide serial out for an all sbus set-up. Hopefully there will be an "sbus" gyro similar to the Cortex or 3e available soon.
Since all the Cortex does is provide servo outputs, the same as a receiver, if you connect an SBE-1 and sbus servos are jumping, that really can only be caused by the SBE-1 as it's driving the servo. Not saying the SBE-1 is broken but it appears it can't handle the frame rate provided by the Cortex. Did you configure the Cortex to use analog servos or digital servos? I'm guessing digital by the symptoms you're describing. If so, most likely that's the problem. It doesn't matter if the actual servos used are digital or not, what's important in this case is whether or not the SBE-1 can handle the higher frame rate and my guess is it can't. If the Cortex is configured for digital servos, change it to analog and try again.