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4.2.15 Sensor Status Information (PGRMT)
The Garmin Proprietary sentence $PGRMT gives information concerning the status of the GPS
sensor. This sentence is transmitted once per minute regardless of the selected baud rate.
$PGRMT,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>*hh<CR><LF>
<1> Product, model and software version (variable length field, for example, “GPS 15xH/15xL
VER 2.05”)
<2> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<3> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<4> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<5> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<6> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<7> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<8> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<9> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
4.2.16 3D Velocity Information (PGRMV)
$PGRMV,<1>,<2>,<3>*hh<CR><LF>
<1> True east velocity, -514.4 to 514.4 meters/second
<2> True north velocity, -514.4 to 514.4 meters/second
<3> Up velocity, -999.9 to 999.9 meters/second
4.2.17 DGPS Beacon Information (PGRMB)
$PGRMB,<1>,<2>,<3>,<4>,<5>,K,<6>,<7>,<8>*hh<CR><LF>
<1> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<2> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<3> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<4> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<5> Distance to beacon reference station in kilometers
<6> No Effect (This field is not used on the GPS 15xH/15xL and is included only for compatibility
with other models.)
<7> DGPS fix source: R = RTCM, W = WAAS, N = No DGPS fix available
<8> Currently selected DGPS mode as specified by the PGRMC1 sentence of Section 4.1.4: A =
Automatic (factory default), W = WAAS only, R = RTCM only, N = None (No DGPS enabled)
