Originally posted by dead2rights
It gets us extra costs. Our understanding of the Galileo system is that it is a subscribed service. In other words not free. The US's GPS system
is free to all users. I've personally not seen any costs so it may be very reasonable. But free versus $$$?
There are two different services, an ecrypted commercial service with high accuracy and a free service for anyone with a Galileo compatible
reciever.
One advantage the Galileo service had is interoperability with other service like the Russian GPS, GLONASS.
This project will also involve countries like Israel, India and China.
Because of all of the countries involved I think global coverage may be better with the Galileo service.
en.wikipedia.org...
There will be four different navigation services available:
* The Open Service (OS) will be free for anyone to access. The OS signals will be broadcast in two bands, at 1164–1214 MHz and at 1563–1591
MHz. Receivers will achieve an accuracy of <4 m horizontally and <8 m vertically if they use both OS bands. Receivers that use only a single band will
still achieve <15 m horizontally and <35 m vertically, comparable what the civilian GPS C/A service provides today. It is expected that most future
mass market receivers will process both the GPS C/A and the Galileo OS signals, for maximum coverage.
* The encrypted Commercial Service (CS) will be available for a fee and will offer an accuracy of better than 1 m. The CS can also be complemented
by ground stations to bring the accuracy down to less than 10 cm. This signal will be broadcast in three frequency bands, the two used for the OS
signals, as well as at 1260–1300 MHz.
* The encrypted Public Regulated Service (PRS) and Safety of Life Service (SoL) will both provide an accuracy comparable to the Open Service.
Their main aim is robustness against jamming and the reliable detection of problems within 10 seconds. They will be targeted at security authorities
(police, military, etc.) and safety-critical transport applications (air-traffic control, automated aircraft landing, etc.), respectively.
In addition, the Galileo satellites will be able to detect and report signals from COSPAS-SARSAT search-and-rescue beacons in the 406.0–406.1 MHz
band, which makes them a part of the Global Maritime Distress Safety System.
[edit on 29-12-2005 by AceOfBase]
