Spatial FOG Reference ManualPage 125 of 144Version 2.303/05/201813.9.44.1 External Air Data FlagsBit Description0 Barometric altitude set and valid1 Airspeed set and valid2 Barometric altitude reference resetTable 87: External air data fags13.9.44.2 NotesBarometric altitude does not need to be referenced to any co-ordinate frame or QNH. Ifthe barometric altitude reference is changed during operation, the barometric altitudereference reset fag should be set for the next packet.13.9.45 GNSS Receiver Information PacketGNSS Receiver Information PacketPacket ID 69Length 48Field#BytesOfsetDataTypeSize Description1 0 u8 1 GNSS manufacturer ID, see section 13.9.45.12 1 u8 1 GNSS receiver model, see section 13.9.45.23 2 s8[10] 10 GNSS serial number in ASCII character string4 12 u32 4 Firmware version5 16 u32[3] 12 Software license code10 28 20 Reserved (set to zero)Table 88: GNSS receiver information packet13.9.45.1 GNSS Manufacturer IDsFor Spatial FOG the GNSS Manufacturer ID will always be 1 (Trimble).Value Description0 GNSS Manufacturer Unknown1 TrimbleTable 89: GNSS manufacturer IDs
