Failsafe when Rx is set to "no pulses"

There is a FS option discussed in the Wiki which is activated by the receiver sending no pulses. The Wiki suggests that in this case the throttle value is irrelevant, yet if it is set too high there is a pre-arm warning.

MP does not offer explicitly a "no Pulses" FS option, it obviously fits into the Radio FS subsection but there is no distinction made between it and the Throttle FS option, leading the user to believe that a throttle PWM is relevant, reinforced by the Pre-arm error.

It would be helpful if the user interface for this section could be updated and the error message sorted out.

Start by reading the Wiki's failsafe discussion and inspecting Mission Planner's Radio FS subsection and related pre-arm warning. The work is done when the no-pulses case is distinguished from throttle failsafe in the interface and an irrelevant throttle value no longer produces the misleading warning.

Written by the indexing model from the issue text.