North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: How do I log on while in flight?
Inmarsat has recently introduced a new service called Swift64. http://www.via-inmarsat.org/swift64_solutions.cfm This is a bit more sophisticated than todays Airfone: www.airfone.com Inmarsat has many products for video over satellite; I believe some of the hazy CNN video streams you get from Afganistan use one of those Inmarsat small briefcase units. > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of > Scott Weeks > Sent: Thursday, June 27, 2002 5:01 PM > To: Leigh Anne Chisholm > Cc: [email protected] > Subject: RE: How do I log on while in flight? > > > > > > > I was mainly thinking of satellite systems, but failed to remember the > latency problems associated with them so the videoconferencing example > wouldn't work. (not enough coffee today... :) So for latency tolerent > apps does satellite work well when traveling at air speeds? If the > footprint doesn't cover the entire area traveled how well does hand off > from one 'cell' to another work? What do the big boys like the president > and corporate execs use? > > Also, that the cellular network could crash if cell phones are used at > altitude seems like a big security hole to me. > > scott > > > On Thu, 27 Jun 2002, Leigh Anne Chisholm wrote: > > : The FCC prohibits communication using a cellular telephone while in an > : aircraft in US airspace. In Canada, I don't believe there is such a > : regulation. > : > : >From doing research on this topic earlier this year, I came across news > : articles that say that several aircraft manufacturers have > tested the use of > : cellular telephones on aircraft systems and found no effects > whatsoever. So > : why the FCC ruling? > : > : Likely it's because of the design of the cellular network - > which from what I > : understand, is far more dense in the US than it is in Canada > (which might be > : why the CRTC doesn't have such a prohibition). The problem is > what happens > : when a cellular device is based above the cellular system > antennae - there is > : an ability to connect to multiple systems simultaneously, and > that's something > : the system wasn't designed to see happen. Additionally, > there's the hand-off > : factor, of the negotiation process of what happens when you > leave the range of > : one cellular tower and enter the range of another. In an aircraft, that > : happens at a rate greater than would be if the cellular phone > were used in a > : car - so again, there's a problem there. The Airphone system found on > : commercial aircraft was designed to overcome these limitations > - which is why > : they CAN be used onboard commercial aircraft systems. > : > : So, besides it being illegal, you run the risk of taking down > your service > : provider's cellular network - and from what I've heard, this > doesn't make them > : very happy. > : > : In summary - don't do it. > : > : > : -- Leigh Anne Chisholm > : Network Engineer > : Applied Design Networks > : > : > : > -----Original Message----- > : > From: [email protected] [mailto:[email protected]]On Behalf Of > : > Scott Weeks > : > Sent: Thursday, June 27, 2002 2:11 PM > : > To: [email protected] > : > Subject: How do I log on while in flight? > : > > : > I was wondering if any of y'all could give me pointers to > services I could > : > use to log into a network during flight on a private > airplane. For example > : > a person is in flight cross-country and needs to do a videoconference, > : > send email from his network to interested parties, or any of > the normal > : > things we do from the ground. Is this possible or would it > interfere with > : > the plane's other systems? > : > > : > scott > : > : > >
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