Garmin GPS 18x 010-00321-37 Manual De Usuario

190-00879-08 

GPS 18x Technical Specifications  

Rev. B 

Page 7 

•  NMEA 0183 Version 2.0 or NMEA 0183 Version 2.30 (Version 2.0 is factory default, programmable by 

data field 7 of the PGRMC1 sentence described in section

•  Available NMEA 0183 output sentences include GPALM, GPGGA, GPGSA, GPGSV, GPRMC, GPVTG, 

GPGLL, PGRME, PGRMF, PGRMM, PGRMT, PGRMV, and PGRMB (Garmin proprietary sentences). 
See section

 for format descriptions. 

•  Configuration and initialization is accomplished with NMEA 0183 input sentences. Allows initialization of 

information such as expected position, date, time, earth datum, and differential mode. See section

 for format descriptions. 

•  Configurable for binary data output. 

•  GPS 18x LVC: 1 Hz pulse with programmable width, configurable in 20 ms increments form 20 ms to 980 

ms. See section

for details about configuring the 

Measurement Pulse Output (or PPS) feature. 

•  GPS 18x-5Hz: 5 Hz pulse synchronized with the time of fix. One of the five pulses will align with the UTC 

second boundary. The pulse width is programmable from 20 ms to 180 ms. The PGRMC sentence will 
indicate which pulse is at the top-of-the-second. See section

 for details about configuring the Measurement Pulse Output (or PPS) feature. 

•  1 μs accuracy for all conditions in which the GPS 18x LVC or GPS 18x-5Hz has reported a valid and 

accurate position fix for at least the previous 4 seconds.