HOLUX
10
Table 5-6
Mode 1
Value Description
M
Manual—forced to operate in 2D or 3D mode
A
2DAutomatic—allowed to automatically switch 2D/3D
Table 5-7
Mode 2
Value Description
1
Fix Not Available
2 2D
3 3D
5.1.4 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
<CR> <LF>
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.
5.1.5 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
Name Example
Units
Description
Message ID
$GPRMC
RMC protocol header
UTC Time
161229.487
hhmmss.sss
