second to any receiver that does not have a large dish antenna. ... Therefore, on the very first day of operation of a new satellite, it can serve the most remote areas of a country as easily as it can major cities. ... In the GPS, each satellite uses its own particular PN code, and that code is compared with a stored set of codes in each user receiver. ... An operational example of such mobile systems is Inmarsat, which links ships at sea to shore telephone networks by way of satellites.
|Title||:||McGRAW-Hill yearbook of science & technology|
|Author||:||McGraw-Hill Staff, McGraw-Hill Companies|
|Publisher||:||McGraw-Hill Companies - 1986|