Altina GGM308U - Manual (Page 11)

5.5. GNSS Satellites in View (GSV)
Table 5-8 contains the values for the following example
$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71
$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41
Table 5-8 GSV Data Format
Name Example Units Description
Message ID $GPGSV GSV protocol header
Number of
Messages
2 Range 1 to 3
Message Number 1 Range 1 to 3
Satellites in View 07 Range 1 to 12
Satellite ID 07 Channel 1 (Range 1 to 32)
Elevation 79 degrees Channel 1 (Maximum 90)
Azimuth 048 degrees Channel 1 (True, Range 0 to 359)
SNR (C/No) 42 dBHz Range 0 to 99, null when not
tracking
Satellite ID 27 Channel 4 (Range 1 to 32)
Elevation 27 degrees Channel 4 (Maximum 90)
Azimuth 138 degrees Channel 4 (True, Range 0 to 359)
SNR (C/No) 42 dBHz Range 0 to 99, null when not
tracking
Checksum *71
End of message termination
NOTE: Items <4>,<5>,<6> and <7> repeat for each satellite in view to a maximum of four (4) satellites per sentence. Additional satellites
in view information must be sent in subsequent sentences. These fields will be null if unused.
5.6. Recommended Minimum Specific GNSS Data (RMC)
Table 5-9 contains the values for the following example.
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10
Table 5-9 RMC Data Format
11
Name Example Units Description
Message ID $GPRMC RMC protocol header