Extended Satellites Packet

Extended Satellites Packet
Packet ID 84
Length 2 + 9 x number of satellites
Read / Write Read
Field # Bytes Offset Data Type Size Description
1 0 u8 1 Total number of extended satellites packets
2 1 u8 1 Packet number (range 1 to Total)
3 2 u8 1 Satellite System
4 3 u8 1 Satellite number (PRN)
5 4 s8 1 Satellite Frequencies
6 5 u8 1 Elevation (deg)
7 6 u16 2 Azimuth (deg)
8 8 u8 1 SNR receiver 1
9 9 u8 1 SNR receiver 2
10 10 u8 1 Flags. See Extended Satellites Flags
+       Fields 3-10 repeat for additional satellites

Extended Satellites Packet

The maximum number of satellites per packet is 28. If there are more than 28 satellites to report, multiple packets will be sent per epoch. In this case the total number of packets in field #1 will be greater than 1, and the Packet Index in field #2 will increment accordingly.

Satellite Systems

Value System
0 Unknown
1 GPS
2 GLONASS
3 BeiDou
4 Galileo
5 SBAS
6 QZSS
7 Reserved
8 Omnistar
9 Reserved
10 NavIC

Satellite Systems

Satellite Frequencies

Value GPS GLONASS Galileo BeiDou SBAS QZSS Omnistar NavIC
0 Unknown Unknown Unknown Unknown Unknown Unknown L1 C/A  
1 L1 C/A G1 C/A E1 OS B1 L1 C/A L1 C/A    
2 L1 C   E1 PRS     L1 C    
3 L1 P G1 P       L1 SAIF    
4 L1 M              
5 L2 C G2 C/A E6 CS B2   L2 C    
6 L2 P G2 P E6 PRS     LEX    
7 L2 M              
8 L5 G3 E5 a B3 L5 L5   L5
9     E5 b          
10     E5 a+b          

Satellite Frequencies

Extended Satellites Flags

Bit Description
0 Visible by receiver 1
1 Visible by receiver 2
2 Used in primary position solution
3 Used in moving baseline solution
4-7 Reserved (set to zero)

Extended Satellites Flags