Leica TPS1200 series Technical Reference Manual page 1353

Examples
NMEA Message Formats
Field Description
x.x Altitude of position marker above/below mean sea level in metres. If no ortho-
metric height is available the local ellipsoidal height will be exported. If the
local ellipsoidal height is not available either, the WGS 1984 ellipsoidal
height will be exported.
M Units of altitude as fixed text M
*hh Checksum
<CR> Carriage Return
<LF> Line Feed
Standard Talker ID
$GNGGQ,113615.50,041006,4724.5248556,N,00937.1063059,E,3,12,0.009,1171.281,M*
22
$GPGGQ,113615.50,041006,,,,08,,*67
$GLGGQ,113615.50,041006,,,,04,,*77
User defined Talker ID = GN
$GNGGQ,113805.50,041006,4724.5248541,N,00937.1063044,E,3,13,0.010,1171.281,M*
2E
TPS1200 1353