Check your math...
Best case scenarios:
c = 3e8 m/s = 3e5 km/s
l = 22000 mi = 35406 km
(35406 km) / (300000 km/s) = 0.118 s = 118 ms
Round trip packet time due to RF delays only from ground point to ground
point = 472 ms
Patrick Shoemaker
Vector Data Systems LLC
[email protected]
office: (301) 358-1690 x36
http://www.vectordatasystems.com
On 9/22/2010 9:45 PM, Josh Luthman wrote:
The latency can't be because of the distance. Rf travels too fast for
that. I expect there are large modem banks on the satellite.
On Sep 22, 2010 9:40 PM, "Greg Ihnen" <[email protected]
<mailto:[email protected]>> wrote:
That's the speed of light in a vacuum. It's somewhat slower in matter
(air).
I use satellite internet here and the latency is a little under 800ms
at best. A ping has to go from my terminal up to the satellite, down
to the earth station, back up from the earth station, and back down
to my terminal.
I blink at least once waiting for my ping to come back.
Greg
On Sep 22, 2010, at 7:21 PM, Josh Luthman wrote:
> Totally agree.
>
>> When your Internet has to ...
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