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 surv
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:
GF70L-Solar Magnetic Asset GPS Tracker
Main indicators and characteristics of GPS monitoring and scheduling system.obd-II port gps tracker
Last article:Intelligent GPS anti-theft electronic system
Next article:GPS performance indicators
Related Information
4G GPS Tracker equipment
2023-04-23gps tracker for kids Vendor
2023-04-23Pet GPS Tracker manufacturer
2023-03-16car gps tracker manufacturer
2023-04-23fleet gps trackers
2023-04-23mini gps tracker Solution
2023-04-23pet gps tracker cat
2023-03-16real-time gps tracking wholesale
2023-04-23Car gps tracking Manufacturing
2023-04-23gps vehicle tracker sales
2023-04-23GPS Tracking Software
2026-04-10G900LM J16-4G Car GPS Tracker
2026-04-29GF20-Mini Magnet GPS Tracker
2022-06-21GPS Dash Cam
2026-04-29TK100N- Multi functional GPS Tracker
2023-10-06What daily life can GPS vehicle positioning terminals be applied?
2023-04-03Vehicle GPS positioning management system
2022-11-04What should I do if the driving recorder has a full memory
2023-06-15GPS Landmark or Waypoint and ROUTE
2022-11-23The GPS positioner on the electric car is installed to allow the city's traffic safety and intellige
2023-03-11GPS module accuracy.gps vehicle tracker Solution
2023-07-11What are the classification of GPS system.gps tracker no monthly fee wholesale
2023-04-21GPS DOP and Active Satellites (GSA)
2022-09-28gps vehicle tracker.The role of Beidou and GPS satellite vehicle positioning systems in transportati
2023-10-14About GPS Drift
2022-08-19Introduction to the Functions of GPS/Beidou Satellite Positioning Vehicle Travel Recorder.Car gps tr
2023-09-05GPS module with AGPS function
2022-10-12GPS monitoring system system function and characteristics
2023-02-11LBS(Galileo) positioning
2022-10-25The difference between GPS positioning and GPS navigation tools.plug & play Obd gps tracker supp
2023-05-09Related Articles

A reliable GPS tracker manufacturer should provide stable 4G real-time tracking, accurate multi-mode positioning, a wide range of device types, fleet and asset management functions, OEM/ODM customizat...

Firstly, let's take a look at why GPS locators are inaccurate and have large errors. GPS positioning accuracy, generally within 10 meters if obtaining Beidou or GPS signals; If it is a signal...

GPS differential positioning technology is an important method to improve the positioning accuracy of the Global Positioning System (GPS). In traditional GPS positioning, satellite signals are af...

Vehicle GPS Navigation System Vehicle mounted GPS navigation system is an indispensable and important device in modern automobiles, providing drivers with convenient and accurate navigation service...

Handheld GPS positioning device is a portable and practical positioning tool widely used in outdoor exploration, geological exploration, forestry investigation and other fields. Handheld GPS posi...

In modern society, high-precision GPS locators play a crucial role. It has brought many conveniences to people's lives and work with its excellent positioning accuracy and reliable performance...