Garmin 16-HVS Instruction Manual

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Garmin 16-HVS Instruction Manual Manual pdf 27 page image

Appendix D. GPS16-HVS SetupsAs configured by Campbell Scientific, the GPS16-HVS will output the NMEA0183 $GPGGA data string once a second, the PPS signal is enabled with aduration of 80 milliseconds and the baud rate is set to 1200 baud.Special software (SNRSRCFG.EXE) is available from Garmin Internationalfor system setup. The GPS16-HVS user manual available from GarminInternational provides technical details beyond the scope of the CampbellScientific user manual.Settings used by Campbell Scientific for GPS16-HVS setup:GPS Base Model = GPS 16/17Fix Mode = AutomaticBaud Rate = 1200Dead Reckon Time = 30 secNMEA output time = 1 secPosition pinning = offNMEA 2.30 mode = offPower Save Mode = off (Normal mode)PPS mode = 1 HzPPS Length = 80 mSPhaze output Data = offDGPS Mode = WAAS onlyDifferential mode = AutomaticEarth Datum Index = NGS 84Selected Sentences = GPGGACommon changes would be baud rate and selected sentences. The CR1000,CR3000, CR800, CR850, and CR23X dataloggers can support baud ratesabove 1200, which can be beneficial in some applications. The NMEA 0183GPVTG data sentence gives ground speed and direction, which may berequired for some applications. Changes can be made with the Garminsoftware, or with a terminal emulator and the Garmin technical user manual.Contact Garmin International (www.garmin.com) for either resource.NMEA Commands for System SetupReceived NMEA strings are commands to the GPS16-HVS which changesome operating parameter. Null fields in the configuration sentence indicate nochange. All sentences are terminated with the carriage return and line feedcharacters (CRLF). The CRLF can occur anywhere in the string. The *hhindicates a checksum which is not required.D-1

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