SwiftNav.SBP.System
msgStartup
data MsgStartup
msgStartup_startup_type
msgStartup_reserved
msgStartup_cause
msgDgnssStatus
data MsgDgnssStatus
msgDgnssStatus_source
msgDgnssStatus_num_signals
msgDgnssStatus_latency
msgDgnssStatus_flags
msgHeartbeat
data MsgHeartbeat
msgHeartbeat_flags