Garmin GPSMAP 17 Specifiche tecniche - Pagina 24

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4.2.13 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, e.g., "GPS 16/17HVS VER 2.05")

<2>

ROM checksum test, P = pass, F = fail

<3>

Receiver failure discrete, P = pass, F = fail

<4>

Stored data lost, R = retained, L = lost

<5>

Real time clock lost, R = retained, L = lost

<6>

Oscillator drift discrete, P = pass, F = excessive drift detected

<7>

Data collection discrete, C = collecting, null if not collecting

<8>

GPS sensor temperature in degrees C

<9>

GPS sensor configuration data, R = retained, L = lost

4.2.14 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

4.2.15 DGPS Beacon Information (PGRMB)

Note: PGRMB is not supported at this time.

$PGRMB,<1>,<2>,<3>,<4>,<5>,K,<6>,<7>*hh<CR><LF>

<1>

Beacon tune frequency, 0.0, 283.5–325.0 kHz in 0.5 kHz steps

<2>

Beacon bit rate, 0, 25, 50, 100, or 200 bps

<3>

Beacon SNR, 0 to 31

<4>

Beacon data quality, 0 to 100

<5>

Distance to beacon reference station in kilometers

<6>

Beacon receiver communication status (0 = Check Wiring, 1 = No Signal, 2 = Tuning, 3 =

Receiving, 4= Scanning)

<7>

DGPS fix source (R = RTCM, W = WAAS, N = Non-DGPS Fix)

<8>

DGPS mode, A = Automatic, W = WAAS Only, R = RTCM Only, N = None (DGPS disabled)

190-00228-20

GPS 16/17 Technical Specifications

Page 20

Rev. C