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1.7.5
Interfaces
•
True RS-232 output (TTL output for GPS 16A and 17N), asynchronous serial input compatible with
RS-232 or TTL voltage levels, RS-232 polarity.
•
User selectable baud rate: 300, 600, 1200, 2400, 4800, 9600, or 19200. 38400 available for GPS 16A.
1.7.5.1 Port 1
•
Configurable between NMEA 0183 Versions 2.00 and 3.00
•
ASCII output sentences GPALM, GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG (NMEA-
approved sentences); PGRMB, PGRME, PGRMF, PGRMM, PGRMT, and PGRMV (Garmin
proprietary sentences)
•
NMEA 0183 Outputs (see Section
specifications)
Position, velocity and time
Receiver and satellite status
Differential Reference Station ID and RTCM Data age
Geometry and error estimates
•
NMEA 0183 Inputs (see Section
Initial position, date and time (not required)
Earth datum and differential mode configuration command, PPS Enable, GPS satellite almanac
•
Configurable for binary data output including GPS carrier phase data
1.7.5.2 Port 2
Real-time Differential Correction input (RTCM SC-104 message types 1, 2, 3, 7, and 9)
1.7.5.3 PPS (Not available on GPS 16A or GPS 17N)
1 Hz pulse, programmable width, 1 µs accuracy
1.7.5.4 Power Control (Not available on GPS 16A)
•
Off:
Open circuit
•
On:
Ground, or pull to low logic level < 0.3 volts
190-00228-20
4.2 Transmitted NMEA 0183 Sentences
4.1 Received NMEA 0183 Sentences
GPS 16/17 Technical Specifications
Page 7
for full protocol
for full protocol specifications)
Rev. C