Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz.
Unlike the American GPS , Russian GLONASS , and European Galileo systems , which use medium Earth orbit satellites , BeiDou-1 uses satellites in geostationary orbit . This means that the system does not require a large constellation of satellites , but it also limits the coverage to areas on Earth where the satellites are visible . The area that can be serviced is from longitude 70 ° E to 140 ° E and from latitude 5 ° N to 55 ° N. A frequency of the system is 2491.75 MHz .
What type of satellites does the American GPS system use?
What type of satellites does the American GPS system use ?
medium Earth orbit satellites
medium Earth orbit satellites