What causes the fail-safe bit to be set in the SBUS protocol?

I know that the when the link between the transmitter and receiver is lost, the fail-safe bit is set, however, what constitutes a 'lost link'?

Is the fail-safe bit set when:

  1. some consecutive number of frames are lost?
  2. a frame-error-rate threshold is crossed?
  3. something else?

In case this logic is hardware specific, here are the details:

Transmitter: Futaba T18MZ WC

Receiver: Futaba R7008SB



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.