Header header
int32 RC_CHANNELS_FUNCTION_MAX=18
uint64 timestamp_last_valid					# Timestamp of last valid RC signal
float32[18] channels						# Scaled to -1..1 (throttle: 0..1)
uint8 channel_count						# Number of valid channels
int8[18] function						# Functions mapping
uint8 rssi							# Receive signal strength index
bool signal_lost						# Control signal lost, should be checked together with topic timeout