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:
simple gps tracking Production
3 Years Disposable Asset GPS Tracker
Can the car GPS locator work normally in a special environment?gps tracker no monthly fee manufactur
Last article:Intelligent GPS anti-theft electronic system
Next article:GPS performance indicators
Related Information
Gps speed limiter wholesale
2023-04-23trailer gps tracker Factory
2023-04-23Cantrack G05
2023-03-16obd2 tracker supplier
2023-03-16car gps tracker
2023-04-11GPS Tracking Factory
2023-04-11Best hidden gps trackers
2023-04-11apple airtags
2023-03-16Vehicle tracking device
2023-03-16obd2 tracker wholesale
2023-03-16G900LM J16-4G Car GPS Tracker
2026-04-29G900LS 8 Lines-4G Car GPS Tracker
2026-04-29G900LM J16-4G Car GPS Tracker
2025-03-25GPS Dash Cam
2026-04-29TK100N- Multi functional GPS Tracker
2023-10-06Development Trend of Automobile GPS Positioning System
2022-12-07GPS application knowledge
2022-08-20Application of GSM Network Communication in Vehicle Positioning System
2022-07-12GPS carrier phase difference principle
2022-10-11The development of American GPS.GPS Tracker for vehicles Manufacturing
2023-05-06How to design an excellent personal GPS satellite locator
2023-02-21GPS reference station subsystem.Magnetic gps tracker supplier
2023-07-03Introduction to GPS Features
2022-09-23Beidou Navigation system-GPS system composition and working principle
2022-10-20Are the mortgage loan cars installed in the car GPS terminal?mileage tracking webfleet solutions
2023-03-14Is the Beidou Navigation System the Beidou Map App?Asset tracking custom
2023-02-18GPS positioning based on base stations.vehicle gps tracker company
2023-07-14Overview of GPS Clock.OBD GPS Tracker manufacturer
2023-07-18The manufacturer shared the function of GPS navigation with everyone.gps tracker with magnet price
2023-06-17gps vehicle tracker.There are several types of car GPS locators
2023-10-24Related Articles

Cantrack Technology serves over 11,000 overseas customers, shipping millions of trackers annually, and keeping more than 3 million devices online worldwide. As competition grew, Cantrack evolved it...

A Reliable Fleet Tracking Solution Is More Than a GPS DeviceFleet operators are rarely asking only whether a GPS tracker can show vehicle location. They need reliable monitoring, unauthorized-use aler...

Buying GPS Trackers in Bulk Is More Than Comparing Unit PriceA GPS tracker order can look affordable on a quotation sheet and still become expensive after deployment. The real cost appears when device...

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...