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:
vehicle gps tracker manufacturer
YG119- Hunting Dog GPS tracker
Last article:Intelligent GPS anti-theft electronic system
Next article:GPS performance indicators
Related Information
rastreador tracker
2023-03-16mini gps tracker manufacturer
2023-04-23gps vehicle tracker Manufacturing
2023-04-11Cantrack GT06
2023-03-16realtime tracking device
2023-03-16pet gps tracker cat
2023-04-11gps tracker for trailer
2023-04-11mini gps tracker sales
2023-04-23Car gps tracking wholesaler
2023-04-23gps tracker with magnet wholesale
2023-03-16TK08AL- RFID Car GPS Tracker
2023-10-07TK100N- Multi functional GPS Tracker
2023-10-06G500M-Mini GPS Tracker
2022-06-20Mini Sized GPS Tracker PCBA
2022-06-17G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19GPS vehicle autonomous navigation system has the following functions
2022-08-05What affects the use time of the car GPS positioner.vehicle gps tracker webfleet solutions
2023-03-14CPU Personal Tracker
2022-08-10Automobile GPS Global Positioning System
2022-12-09GPS trackers can be used however you want
2022-09-20Vehicle GPS positioner startup status classification description.gps tracker für auto webfleet solut
2023-03-28gps vehicle tracker.What's wrong with the inaccurate positioning of the ultra long standby GPS locat
2023-10-11What will be affected by the accuracy of LBS positioning.gps tracker no monthly fee manufacturer
2023-03-10Gps speed limiterDoes the ultra small button type GPS locator exist
2023-10-24What is the difference between GPS positioning manufacturers and in car reverse imaging WiFi and 4G.
2023-06-14What is the GPS
2022-10-13Solar GPS positioning tracker solve worries
2023-02-23The functions of intelligent GPS.vehicle gps tracker webfleet solutions
2023-08-08Features of GPS
2023-02-17GPS selection.Hidden GPS Trackers wholesale
2023-06-28