bool rc_failsafe # explicit failsafe flag: true on TX failure or TX out of range , false otherwise. Only the true state is reliable, as there are some (PPM) receivers on the market going into failsafe without telling us explicitly.
bool rc_lost # RC receiver connection status: True,if no frame has arrived in the expected time, false otherwise. True usually means that the receiver has been disconnected, but can also indicate a radio link loss on "stupid" systems. Will remain false, if a RX with failsafe option continues to transmit frames after a link loss.
uint16 rc_lost_frame_count # Number of lost RC frames. Note: intended purpose: observe the radio link quality if RSSI is not available. This value must not be used to trigger any failsafe-alike functionality.
uint16 rc_total_frame_count # Number of total RC frames. Note: intended purpose: observe the radio link quality if RSSI is not available. This value must not be used to trigger any failsafe-alike functionality.