Article View: alt.cellular.fido
Article #13Re: Why GSM in such a big country like Canada ?
From: James Knott
Date: Wed, 18 Apr 2001 11:46
Date: Wed, 18 Apr 2001 11:46
30 lines
2591 bytes
2591 bytes
Actually, it will be somewhat less, depending on altitude. Only something at a very great distance from the earth can see an entire hemisphere. Hence the need for multiple satellites for Irridium and Globalstar. Even geosync sats see only a bit more than 1/3 of the earth. Al Klein wrote: > > On Tue, 17 Apr 2001 02:14:37 GMT, "repatch" <repatch@my-deja.com> > posted in alt.cellular: > > >> >Telstra was flogging a magic figure of 'up to 120km' from each cell. > >> >Not sure how or why though, sorry. > > >> Depends on the height of the cell. If the cell is high enough, the > >> range is 12,500 miles. > > > I hope you're kidding there. TTYL > > No. A 'cell' in space sees a hemisphere with a radius (from the point > directly under the cell) of 12,500 miles. That's the coverage of a > satellite phone 'cell'. > -- > Al - rukbat at optonline dot net -- Replies sent via e-mail to this address will be promptly ignored. To reply, replace everything to the left of "@" with "james.knott".
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10774d,f6bfd0395fb1ea2d X-Google-Attributes: gid10774d,public X-Google-Thread: fb718,f6bfd0395fb1ea2d X-Google-Attributes: gidfb718,public X-Google-Thread: 105fb2,f6bfd0395fb1ea2d X-Google-Attributes: gid105fb2,public X-Google-ArrivalTime: 2001-04-18 04:46:55 PST Path: arc1-ca.pugleaf.net!supernews.google.com!newsfeed.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newshub2.home.com!news.home.com!news3.rdc1.on.home.com.POSTED!not-for-mail Message-ID: <3ADD7EAE.F97EE62@home.com> From: James Knott <the.lights.are.on.but.no.one.is@home.com> X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.14-5.0 i586) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: alt.cellular.fido,alt.cellular,aus.comms.mobile Subject: Re: Why GSM in such a big country like Canada ? References: <CABFD5B1F2CD777D.CD5FDE1048A474DD.CCD35D6B55884796@lp.airnews.net> <cCJC6.11861$W7.63061@news-server.bigpond.net.au> <3adb7f4c.6682274@news> <8v8ndtgs395egi7tbktc9lirmofruuuc9s@4ax.com> <hGNC6.680827$JT5.18112031@news20.bellglobal.com> <h99pdt8lm4gikulgehcdqf4ri4cd60b2o3@4ax.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 30 Date: Wed, 18 Apr 2001 11:46:54 GMT NNTP-Posting-Host: 24.42.126.147 X-Complaints-To: abuse@home.net X-Trace: news3.rdc1.on.home.com 987594414 24.42.126.147 (Wed, 18 Apr 2001 04:46:54 PDT) NNTP-Posting-Date: Wed, 18 Apr 2001 04:46:54 PDT Organization: Excite@Home - The Leader in Broadband http://home.com/faster