[opendtv] Re: Expected TV transmitter coverage areas
- From: Jeroen Stessen <jeroen.stessen@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 20 Dec 2005 12:53:18 +0100
Hello,
Bert Manfredi:
> So, in the US, that makes 1504 square Km per TV tower on average.
> In Italy, 167 square Km per TV tower on average.
Imagine if you had a single tower, but very high, like 35,786,000 meter:
http://www.kvh.com/footprint/images/hotbird.jpg
http://www.kvh.com/footprint/images/hotbird_wb.jpg
http://www.kvh.com/footprint/images/US_coverage.jpg
http://www.kvh.com/footprint/images/Canada_coverage.jpg
Hotbird carries several _dozens_ of programs aimed at Italians, enough
that you should not need a second "tower" for special interest groups.
Also, there's little risk that you get fried if you come too close to
one of those "big sticks". The field strength is very very safe...
Although, a big stick does make a nice biiiig (375 m) Christmas tree:
http://www.degrootstekerstboom.nl/
http://www.degrootstekerstboom.nl/webfotos004/images/DSC05650.jpg
http://www.degrootstekerstboom.nl/webfotos004/images/DSC05658.jpg
http://www.degrootstekerstboom.nl/webfotos003/resize_zendmast35a.jpg
The power output is 120 x 35 W = 4.2 kW. Light output, that is...
Big sticks are prone to disasters:
http://members.home.nl/ronheijnemans/gerbrandy_toren/ramp.htm
Best (Christmas),
-- Jeroen
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