source:truck tracking webfleet solutions release time:2022-08-26 Hits: Popular:realtime gps tracker online

1. DGPS function
To minimize the effects of SA and atmospheric refraction, there is a device called a DGPS transmitter. It is a fixed GPS receiver (set within a radius of 100km to 200km of a survey site) to receive the signal from the satellite, it knows exactly what the precise time the satellite signal is theoretically transmitted to, and then correlates it with the actual transmission time. Compare, then calculate the "difference", which is very close to the effect of SA and atmospheric refraction, and send this difference so that other GPS receivers can use it to get a more accurate position reading (5m to 10m or less error).
Many GPS equipment providers set up DGPS transmitters in some areas for their customers to use free of charge, as long as the GPS receivers purchased by customers have DGPS capabilities.
2. Signal interference
To give you a good fix, a GPS receiver needs at least 3-5 satellites to be visible. If you're in a canyon or on a street lined with tall buildings, or in a dense jungle, you may not be able to communicate with enough satellites to be able to locate or get only two-dimensional coordinates. Also, if you're inside a building, you may not be able to update your location, some GPS receivers have separate antennas that can be attached to the windshield, or an external antenna that can be placed on the roof, which helps you receivers get more satellite signals.
3. Physical indicators
When purchasing GPS equipment, physical indicators such as size, weight, display screen, waterproof, shockproof, dustproof performance, high temperature resistance, and power consumption must be considered.
Read recommendations:
Last article:Intelligent GPS anti-theft electronic system
Next article:GPS performance indicators
Related Information
gps vehicle tracker custom
2023-04-11gps vehicle tracker Vendor
2023-04-11vehicle gps tracker webfleet solutions
2023-04-11Gps speed limiter wholesaler
2023-04-23gps vehicle tracker Processing
2023-04-11portable gps tracker Vendor
2023-04-234G GPS Tracker Vendor
2023-04-23gps tracker for kids
2023-03-16trailer gps tracker Factory
2023-04-234G GPS Tracker price
2023-04-23TK08A Motorcycle GPS Tracker
2022-06-20G05N Vehicle Tracker
2022-06-21GF20-Mini Magnet GPS Tracker
2022-06-21G09L -6 inch Tail light tracker
2022-06-20TK08AL- RFID Car GPS Tracker
2023-10-07GPS positioner positioning is inaccurate.gps tracker no monthly fee distributors
2023-04-25Why is the gps locator showing offline?
2022-07-19Application of GPS Positioning Technology in Network Security
2022-08-12GPS service platform
2022-10-09What does the gps fee for buying a car mean?
2022-08-12Bluetooth GPS related issues.plug & play Obd gps tracker Processing
2023-08-04GPS Development.gps tracker for trailer distributors
2023-09-09The application process of GPS positioner in car loans is as follows.vehicle gps tracker Manufacturi
2023-03-17The development of electronic maps.personal gps tracker Manufacturing
2023-05-17Where is the product advantage of the GPS positioner
2023-03-06Bluetooth GPS Technology Features.gps tracker für auto webfleet solutions
2023-08-04Detailed introduction to the function of the car GPS positioner.gps tracker no monthly fee distribut
2023-03-10Brief analysis of the benefits of installing vehicle positioning system.van tracker webfleet solutio
2023-03-13mini gps tracker.Target Customer Classification of Automotive Beidou GPS Positioning and Monitoring
2023-11-06What is the difference between vehicle GPS positioning system and vehicle management system?GPS Trac
2023-03-28