source:truck tracking webfleet solutions release time:2022-10-26 Hits: Popular:realtime gps tracker online
There are 24 GPS satellites orbiting the Earth in six orbits (in groups of four). There are usually no more than a dozen satellites on the same side of the Earth. Most GPS receivers can track 8 to 12 satellites. At least 3 satellites are required to calculate LAT/LONG (2 dimensional) coordinates. Add one more and you can calculate the three dimensional coordinates. For a given location, the GPS receiver knows which satellites are nearby at that moment because it is constantly receiving updates from them.
Some consumer GPS devices have two to five parallel channels to receive satellite signals. Because up to 12 satellites may be visible (the average is 8), this means that the GPS receiver must visit each satellite in order to get information about each satellite.
Most GPS receivers on the market are 12-channel and 20-channel models (UTSU Mio269, etc.), which allow them to continuously track the information of each satellite. Advantages of the 12-channel receiver include fast cold start and initialization of satellite information, as well as better reception in forested areas. Generally, 20-channel receivers do not need external antennas, but in enclosed Spaces such as cabins and carriages, external antennas are still needed to ensure accurate reception of GPS signals.
Read recommendations:
vehicle gps tracker webfleet solutions
Last article:Introduction to GPS World
Next article:China's Beidou GPS system
Related Information
4G GPS Tracker for vehicles manufacture
2023-04-234G GPS Tracker for vehicles manufacturer
2023-04-23mini gps tracker sales
2023-03-16pet gps tracker cat sales
2023-03-16gps vehicle tracker Factory
2023-04-11car gps tracker Factory
2023-04-11gps vehicle tracker manufacturer
2023-04-11real-time gps tracking Factory
2023-04-23Car gps tracking distributors
2023-04-234G GPS Tracker Processing
2023-04-23GF20-Mini Magnet GPS Tracker
2022-06-21TK08A Motorcycle GPS Tracker
2022-06-20G06L- 4G Car GPS Tracker
2022-09-06G900LS-4G Car GPS Tracker
2023-10-06G02M Pet Tracker
2022-06-19Is it really good to install a gps tracker?
2022-09-09Beiqi Foton independently researches and develops the Internet of Vehicles system, Beidou and GPS du
2022-08-11Causes of GPS positioning errors
2022-07-12GPS Outlook
2022-08-01What is the difference between the car GPS positioner and the car navigator?gps tracker für auto web
2023-03-21GPS Principal Component Analysis
2022-11-09GPS mobile engineering mode.gps tracker device wholesale
2023-07-14The core of third-generation chips.vehicle gps tracker Solution
2023-07-06Introduction to GPS Features
2022-09-23Car GPS.obd-II port gps tracker Processing
2023-05-13China Beidou will provide positioning and alarm services to the world
2023-02-15GPS system performance index
2023-02-09Domestic GPS operators.plug & play Obd gps tracker distributors
2023-08-18Where can the general car positioner be installed.obd13 gps tracker verizon Manufacturing
2023-03-10mini gps tracker.What is the principle of GPS
2023-11-16