source:truck tracking webfleet solutions release time:2022-12-05 Hits: Popular:realtime gps tracker online
GPS is now generally 12 channels, which can receive 12 satellites at the same time. Early models, such as GARMIN 45C, were 8-channel. The GPS receiver can output 2D (that is, 2D) data when it receives signals from three satellites. It has only longitude and latitude, but no altitude. If it receives more than four satellites, it will output 3D data, which can provide altitude. However, due to the problem of the earth itself, it is not a standard circle, so there are some errors in the height data. Now some GPS receivers have built-in barometers, such as the SUMMIT and VISTA of etrex. These machines synthesize the final altitude based on the altitude data obtained from the two channels, which should be more accurate.
When the GPS receiver is powered on for the first time, or the distance between the power on and the last power off location is more than 800KM, because the ephemeris stored in the receiver are not correct, it is necessary to relocate on the receiver.
The GPS receiver should be used in the open and visible sky, so it cannot be used indoors. The accuracy of the hand-held GPS is generally about 10 meters, which means that you can see whether to go left or right on a road. The accuracy mainly depends on the signal reception of satellites and the distribution of satellites that can receive signals in the sky. If several satellites are distributed dispersedly, the positioning accuracy provided by the GPS receiver will be relatively high.
Read recommendations:
Next article:GPS system composition
Related Information
pet gps tracker cat manufacture
2023-03-164G GPS Tracker Factory
2023-04-23simple gps tracking wholesale
2023-04-23Special Looks GPS Tracker PCBA
2023-03-16GPS Tracker maker
2023-04-11gps tracker with magnet wholesale
2023-03-16fleet gps tracking Vendor
2023-04-23gps vehicle tracking
2023-03-16obd2 gps tracker verizon
2023-03-16fleet gps trackers
2023-04-11G05N Vehicle Tracker
2022-06-21G08L - 4inch Smart Tail Light Tracker
2022-06-20G09L -6 inch Tail light tracker
2022-06-20C32Plus (9~90V E-bikes/Motorcycle/Car gps tracker)
2022-06-21P901 4G ID Card GPS Tracker Smart Walkie-talkie
2025-07-11Types of GPS Chips Used in Common GPS Receivers
2022-08-17GPS Navigator
2022-08-08Brief analysis of the benefits of installing vehicle positioning system.van tracker webfleet solutio
2023-03-13Brief Introduction to GPS
2022-11-02What should I pay attention to when buying GPS products?
2022-08-10gps vehicle tracker.Wireless GPS locator
2023-10-20GPS FPGA Program Design
2022-11-10Mobile GPS positioning
2023-07-13What is GPS location time?
2022-10-28The application process of GPS positioner in car loans is as follows.vehicle gps tracker Manufacturi
2023-03-17GPS installation step
2022-10-10GPS module performance
2023-02-03mini gps tracker.The role of vehicle GPS satellite positioning system in logistics transportation
2023-11-02Installation and Use Instructions for GPS Mobile Car Check.Hidden GPS Trackers manufacturer
2023-09-12Typical GPS Clock Products.Hidden GPS Trackers supplier
2023-07-18