Today i realised that APM does not detect Aileron, Elevator and Rudder signal lost. I made a quick test and there is no error message on the Mission Planner. Is this my lack of knowledge or there is no signal lost check on those signals?
Bests.
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It only detects it on throttle because the purpose is to detect the loss of the receiver, or loss of link to the transmitter. It only needs to see that loss on one channel to know it happened. There is nothing to gain by detecting the same thing on 4 other channels. Also, throttle is the only channel that "idles" at its lowest value of -100%. The other three channels "idle" at 0%. It is very easy to set a failsafe monitor for throttle because it need only detect a signal below it's minimum, something like -125%. Whereas the other three channels stay at 0% when lost.
Thanks for very clear answer:)