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
GPS Trackers custom
2023-04-11Portable car gps systems
2023-03-16Asset GPS Tracker
2023-03-164G GPS Tracker price
2023-04-23mini gps tracker distributors
2023-04-234G GPS Tracker for vehicles wholesale
2023-04-23fleet gps trackers wholesale
2023-04-23vehicle gps tracker webfleet solutions
2023-04-11Gps speed limiter price
2023-04-23Gps speed limiter distributors
2023-04-23G900LS-4G Car GPS Tracker
2023-10-06G200NY -Cow/Camel GPS Tracker
2022-06-21VSL100 GPS Speed Limiter, Speed Governor
2022-06-194G Wired GPS Tracker PCBA
2022-06-17G500M-Mini GPS Tracker
2022-06-20Classification and cause analysis of lithium battery explosion
2022-10-18Navigator classification.Mouth and word buckle price
2023-06-06The main purpose of GPS satellite positioning
2022-07-11GPS/GPRS power-off terminal
2022-12-20GPS navigation function
2022-07-21GPS positioning principle
2022-10-14Portable Wireless GPS Tracker
2022-09-20WIFI GPS
2022-10-25Types of GPS chips used by common GPS receivers
2022-12-30How to solve the car GPS positioner?fleet management software webfleet solutions
2023-03-09What are GPS in aviation flight navigation.gps tracker for trailer distributors
2023-04-10Car GPS Pharmaceutical Pharmacopoeia
2023-05-16Buses equipped with GPS for private use should be held accountable
2022-08-11Design of GPS Vehicle Satellite Positioning Simulation System
2022-12-06Is GPS really powerful?
2023-02-14