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G-Mouse GPS Receiver User Manual
Page 13
$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 A-8 GSV Data Format
Name Example
Units
Description
Message ID $GPGSV
GSV protocol header
Number of
Messages1
2 Range 1 to 3
Message Number 1
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
NOTE: Item <4>,<5>,<6> and <7> repeat for each satellite in view to a maximum of four (4)
satellite per sentence. Additional satellites in view information must be sent in sentences. These
fields will be null if unused.
A.1.5 Recommended Minimum Specific GNSS Data (RMC)
Samples:
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10
Table A-9 RMC Data Format
Name Example Units
Description
Message ID $GPRMC RMC protocol header
UTC Position 161229.487
Hh mm ss.sss
Status A A = data valid or V = data not valid
Latitude 3723.2475
dd mm.mmmm
N/S Indicator N N = north or S = south
Longitude 12158.3416
ddd mm.mmmm
E/W Indicator W E = east or W = west
Speed Over Ground 0.13 knots
Course Over Ground 309.62 degrees
True
Date 120598 dd mm yy
Magnetic Variation1 02.6 degrees
E/W Indicator W E = east or W = west
Checksum *10
A.1.6 Course Over Ground and Ground Speed (VTG)
Samples:
$GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E
Table A-10 VTG Data Format
Name Example Unit Description
Message ID
$GPVTG
VTG protocol header