Leica Captivate Technical Reference Manual page 1023

NMEA Message Formats
Field Description
a Mode
M = Manual, forced to operate in 2D or 3D mode
A = Automatic, allowed to change automatically between 2D
and 3D
x Mode
1 = Fix not available
2 = 2D
3 = 3D
xx PRN numbers of the satellites used in the solution.
For NMEA v4.0:
For NMEA v4.1:
☞
For NMEA v4.0 and v4.1:
GPS
GLONASS
For NMEA v4.1 also:
Galileo
BeiDou
x.x PDOP
x.x HDOP
x.x VDOP
h For NMEA v4.1. GNSS System ID
1 = GPS
2 = GLONASS
3 = Galileo
4 = BeiDou
*hh Checksum
<CR> Carriage Return
<LF> Line Feed
This field is repeated 12 times.
This field is repeated 16 times.
A new GSA message is sent for each GNSS constel-
lation tracked.
1 to 32
33 to 64
65 to 99
1 to 32
33 to 64
65 to 99
1 to 36
37 to 64
65 to 99
1 to 37
38 to 64
65 to 99
GPS satellites
SBAS satellites
Undefined
Undefined
SBAS satellites
GLONASS satellites
Galileo satellites
Galileo SBAS
Undefined
BeiDou satellites
BeiDou SBAS
Undefined
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