How long are the time delays with satellite data transmissions?

Geostationary satellites are located in orbit approximately 36,000 kilometers above the equator. A roundtrip time to a satellite for data needs about 250 msec, the 2-way protocol latency is about 600 msec including SurfBeam 2 system latency. To mitigate latency, which would impact on TCP throughput and web browsing speeds, a Performance Enhancing Proxy (PEP) and Web acceleration are integrated into the SurfBeam 2 modem.

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