cross
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response 119 of 122:
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Jan 20 02:02 UTC 2013 |
resp:115 Latency is almost always an issue for satcom. Pushing on Ka or X
band to geo-sync/geo-stationary is going to be slow because, well, the speed
of light isn't just a good idea, it's the law. :-)
I've never had great luck with LEO for anything. Maybe DAMA voice, but I
don't recall what birds those were bitting.
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dtk
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response 120 of 122:
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Jan 25 22:06 UTC 2013 |
Here here. GEOS is great for resilience, and as long as you can tolerate
delay, you can go anywhere in its shadow. That said, it takes people a
while to get used to the delays involved in a voice call, but as long as
the delay is pretty consistent (i.e. low jitter), people adapt.
Oh, and for the fans following along at home, remember that the speed of
light in the atmosphere is a lot slower than the speed of light in a
vacuum.
I never tried using a LEO-provider; having to track a bird that is in
motion relative to your frame of reference either requires the dish to
be in constant motion, or accept drop-offs frequently. Neither seems
like much fun, and not worth the small improvement in round-trip-time.
-DTK
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