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      GNSS Signal, Correction, and Constellations

      Posted by Luke Wilson on Sep 23, 2020 5:43:55 PM

      Purpose: Global Navigation Satellite Systems (GNSS) such as GPS or BeiDou can sometimes have confusing terminology. This knowledge base document will explain some of the most commonly used terms regrading GNSS

      Last Updated: September 2020

      Constellation: A constellation is the collection of satellites that make up a particular system. Some examples of constellations are: GPS, BeiDou, Galileo, and GLONASS.

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      Topics: Constellation, GPS, GNSS, BeiDou, GLONASS, Galileo, Signals, Frequencies, Correction

      Understanding When to Use the Barometer

      Posted by Luke Wilson on Aug 20, 2020 11:31:09 AM

      Purpose: To understand in what cases the barometer should be turned ON and what cases it should be OFF.

      Last Updated: June 2020

      Case 1: In completely GPS-Denied environment, the pressure sensor should be set to primary altitude sensor as shown below.

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      Topics: INS, GPS, Sensor, Barometer, Baro-Altimeter

      Support Thread: Time Offset Between GPS Data and INS Data

      Posted by Will Dillingham on Aug 19, 2020 2:09:06 PM

      Purpose: To give insight for the potential user on a commonly seen misunderstanding in the difference between UTC and GPS timestamps.

      Last Updated: March, 2020



      I have found one issue that I am currently confused with. The timestamp recorded from COM1 of the INS is consistently 17-20 seconds fast. If I start recording at 00 seconds, the first timestamp is equal to 17+ seconds, however the location data that comes from the GPS receiver is correct for 00 seconds and not 17+ seconds. Any insights into this issue?

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      Topics: INS, GPS, Difference, UTC, Time, Offset, Position

      Configuring Device to Track Specific GNSS Constellations

      Posted by Will Dillingham on Aug 18, 2020 11:35:08 AM


      Purpose: The purpose of this article is to show the steps to configuring usage of individual constellations, make sure to send these commands using an RS-232 connection and not to use Ethernet. It is critical that you follow these instructions carefully to not incorrectly configure the unit. If there is any uncertainty please consult a Customer Service agent. Developer options such as these may result in the Warranty of the device being voided.

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      Topics: INS, MRU-PD, INS-D, INS-DL, INS-B, INS-P, Constellation, GPS, Navic, QZSS, GNSS, custom, BeiDou, GLONASS, Galileo

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