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:
3000mAh Magnet Asset GPS Tracker
How to implement GPS monitoring function.trailer gps tracker Solution
International requirements aircraft must be equipped with GPS
Last article:Intelligent GPS anti-theft electronic system
Next article:GPS performance indicators
Related Information
fleet gps trackers Vendor
2023-04-23Gps speed limiter wholesale
2023-04-234G obd gps trackewr
2023-03-16Pet GPS Tracker
2023-04-11car gps tracker Solution
2023-04-23cat gps tracker maker
2023-04-11pet gps tracker cat Factory
2023-03-16portable gps tracker distributors
2023-03-16gps vehicle tracker Vendor
2023-04-23Dog gps tracker Production
2023-04-23G07L 4G GPS Tracker
2022-09-06G900LM J16-4G Car GPS Tracker
2025-03-254G Wired GPS Tracker PCBA
2022-06-17G500M-Mini GPS Tracker
2022-06-20G900LS J16-4G Car GPS Tracker
2026-04-29GPS development mode
2022-11-19How to choose a reliable GPS manufacturer service operator to cooperate with?
2022-07-16How will a drone without a GPS tracker orient and return to its base?
2022-09-13Application of GPS Earth Powerology.realtime gps tracker online Manufacturing
2023-04-23Really breeding special GPS positioning anti -lost device.fleet management software webfleet solutio
2023-02-24GPS system composition
2023-02-07GPS positioner positioning is inaccurate.gps tracker no monthly fee distributors
2023-04-25GPS management system-efficient management of your vehicle
2023-02-16Solar GPS positioning tracker solve worries
2023-02-23GPS system functions
2022-11-09gps tracker is very power hungry?
2022-09-19The significance of GPS positioning technology in the construction machinery industry.obd2 gps track
2023-03-16Analysis of GPS antenna principle
2022-12-02GPRS/CDMA GPS antenna.gps tracker online Manufacturing
2023-08-02Design of GPS Vehicle Satellite Positioning Simulation System
2022-12-06Related Articles

A suitable global GPS tracker manufacturer should provide multi-band 4G LTE Cat 1 devices, confirm network compatibility for the destination market, and support GPS tracking platforms, APIs, OEM/O...

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...