Thread: Public internet access on the london underground
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Old September 12th 11, 02:10 PM posted to uk.transport.london,uk.telecom,uk.comp.mobile
Roland Perry Roland Perry is offline
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First recorded activity at LondonBanter: Aug 2003
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Default Public internet access on the london underground
In message , at
13:52:52 on Mon, 12 Sep 2011, Mike Coon remarked:
I didn't know there was such a thing as satellite WiFi. Are these
geostationary (over the equator), or does the "straightforward servo system"
have to compute the satellite orbit too?

It's satellite Internet, which has been available for more than a
decade, plus a wifi hotspot to deliver it to the users. When I was
playing with this about 12 years ago they used redundant transponders on
regular TV satellites, which are geostationary. But there are dedicated
satellites too.

Here's some details of the Boeing in-flight system:

http://en.wikipedia.org/wiki/Connexion_by_Boeing
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Roland Perry
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