Quote:
Originally Posted by shake
The answer is simple I think - they are pushing the same 1080p signal to ALL their subscribers at the exact same time, so in effect it is one signal being sent out per channel of TV. If you are watching youtube, and say maybe 10,000 other internet subscribers are at the same time, even though youtube uses far less bandwidth, it would still use far more resources on the satellite end because there are so many users doing so many different things.
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You are exactly right.
They "broadcast" 1 x 1080p signal to the earth for eveyrone to pick up, so the bandwidth that they are actually using is the same thing regardless of the number of viewers who may be tuned in at any time.
Internet bandwidth is completely different. If 100 people are watching the same video on youtube, it is using 100 x time the bandwidth.
SAT providers also meter their Internet usage carefully. Their first priority is to a good video signal which they guarantee. Internet speed is not guranteed by them at all, so its prone to constant slow downs.
SAT Service also sucks for Internet because the closest "hop" to you is 26,236 miles away. This means that every packet takes 0.14 seconds to arrive, plus another .14 to return to earth, not counting error correction etc. Not good for latency.