Garmin GPS 19x HVS Technical Specifications

Also see for GPS 19x HVS: Installation instructions

Garmin GPS 19x HVS Technical Specifications Manual pdf 16 page image

16If the target sentence is configured for high transmission priority, then this sentence will be transmitted every timethe GPS sensor produces a new positioning estimate. If the target sentence is configured for low priority, then it willbe transmitted at least once per second in the bandwidth that remains available after all high priority sentences aretransmitted. If sensor is configured to operate at positioning rate of 10 times per second, enabled high prioritysentences will be transmitted every 100ms and enabled low priority sentences will be transmitted in remainingbandwidth available in each 100ms interval. This priority scheme provides flexible configuration of NMEA0183output. It provides a way to output maximum amount of information, while still maintain timing accuracy of highpriority sentences.Sending the sentence “$PGRMO,GPALM,1” will cause the GPS sensor to transmit all stored almanac informationfor GPS satellites. Transmission of all other NMEA 0183 output sentences will be temporarily suspended.Sending the sentence “$PGRMO,GLMLA,1” will cause the GPS sensor to transmit all stored almanac informationfor GLONASS satellites. Transmission of all other NMEA 0183 output sentences will be temporarily suspended.Sending the sentence “$PGRMO,,G” will cause the COM port to change to Garmin Data Transfer format for theduration of the power cycle. The Garmin mode is required for GPS 19x HVS series product software updates.4.2 TRANSMITTED NMEA 0183 SENTENCESThe subsequent paragraphs define the sentences that can be transmitted by the GPS 19x HVS.4.2.1 Sentence Transmission RateSentences are transmitted with respect to the user selected baud rate.The GPS sensor will transmit sentences (except where noted in particular transmitted sentence descriptions) at aperiodic rate based on following parameters:- user selected positioning update rate (1,5 or 10 Hz)- user selected serial baud rate- user selected output sentences and their priorityThe GPS sensor will transmit the selected sentences continuously. The length of the transmission can be determinedby the following equation and Tables 2 and 3:total characters to be transmittedlength of transmission = ---------------------------------------------characters transmitted per secondSentence Output by Default? Maximum Characters Output rate (times/sec)RMC  74 1,5,10GGA  82 1,5,10GSA  66 1GSV  70 1PGRME 35 1,5,10GLL 44 1,5,10VTG  42 1,5,10GNS 82 1,5,10PGRMV 32 1,5,10PGRMF 82 1,5,10PGRMB 40 1,5,10PGRMMPGRMT  50 once per minuteTable 2: NMEA 0183 Output Sentence Order and SizeBaud Characters per Second4800 4809600 96019200 192038400 3840Table 3: Characters per Second for Available Baud Rates