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:
YG119- Hunting Dog GPS tracker
Beiqi Foton independently researches and develops the Internet of Vehicles system, Beidou and GPS du
What should I pay attention to when purchasing GPS products?
Last article:Introduction to GPS World
Next article:China's Beidou GPS system
Related Information
4G GPS Tracker for vehicles company
2023-04-23fleet gps tracking
2023-04-23personal gps tracker
2023-04-114G GPS Tracker Processing
2023-04-23fleet gps trackers
2023-04-23Magnetic gps tracker
2023-04-11portable gps tracker
2023-04-11pet gps tracker cat manufacturer
2023-03-16apple airtags
2023-03-16portable gps tracker distributors
2023-03-16NB20 -4G Bluetooth Smart Pet Tracker
2022-06-214G Wired GPS Tracker PCBA
2022-06-17G06L
2022-06-21TK08AL- RFID Car GPS Tracker
2023-10-07GF30 Magnet GPS tracker with Voice listen
2022-06-21What is the Beidou GPS positioner?gps tracker no monthly fee distributors
2023-03-28GPS maintenance.obd2 gps tracker verizon maker
2023-06-09Introduce the different types of the positioner
2023-03-07Where is the car GPS positioner?
2023-02-22How to select a suitable vehicle GPS locator
2023-02-21Gps speed limiter.GPS monitoring and dispatching passenger transportation center
2023-10-14Gps speed limiter.Can agricultural vehicles such as tractors be equipped with GPS positioning system
2023-11-09GPS maintenance.obd2 gps tracker verizon maker
2023-06-09Fleet management.Analysis of users' demand for monitoring services of car GPS positioning systems
2023-11-03gps vehicle tracker.What should be noted when installing Beidou/GPS positioners on electric vehicles
2023-10-25GPS navigation satellite has a high-precision atomic clock for time service
2022-12-29gps vehicle tracker.How to detect if a GPS locator has been stolen and whether it can be completely
2023-10-19Bluetooth GPS application.gps tracker online maker
2023-08-04GPS positioner function.realtime gps tracker online wholesale
2023-04-07GPS module performance
2023-02-03