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<blockquote data-quote="Dave70968" data-source="post: 2981041" data-attributes="member: 13624"><p>They can improve bandwidth (Mb/sec), they can improve reliability, but they will never, ever be able to improve latency (ping time/time between request and receiving the first bit of the reply). Simple physics: your request has to go up to the satellite, then back down to earth to hit the "real" network that the terrestrial folks are already using; then, the reply--after going through the terrestrial network--also has to make a round-trip through the bird. Geostationary orbit is at a bit over 22k miles above the surface, so that's an 88k mile round trip. Light moves at 186k miles/second, so you're adding almost half a second in travel time (plus signal processing time on the bird), over and above the ordinary terrestrial network. That may not bother you when you start a movie on Netflix, but it's noticeable when browsing the web, annoying/unnatural for phone calls/VOIP, and intolerable for real-time gaming.</p></blockquote><p></p>
[QUOTE="Dave70968, post: 2981041, member: 13624"] They can improve bandwidth (Mb/sec), they can improve reliability, but they will never, ever be able to improve latency (ping time/time between request and receiving the first bit of the reply). Simple physics: your request has to go up to the satellite, then back down to earth to hit the "real" network that the terrestrial folks are already using; then, the reply--after going through the terrestrial network--also has to make a round-trip through the bird. Geostationary orbit is at a bit over 22k miles above the surface, so that's an 88k mile round trip. Light moves at 186k miles/second, so you're adding almost half a second in travel time (plus signal processing time on the bird), over and above the ordinary terrestrial network. That may not bother you when you start a movie on Netflix, but it's noticeable when browsing the web, annoying/unnatural for phone calls/VOIP, and intolerable for real-time gaming. [/QUOTE]
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