[opendtv] Re: Perspective
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Mon, 11 Feb 2008 18:31:45 -0800
How in hell can you draw any conclusions from these maps? They don't show
much if any data about the transmitters, the actual populations and density
nor -- most importantly -- terrain profiles and ground elevation.
It's akin to doing a frequency search using a Michelin map. And, it's par
for the course for "our 'bert.'
John Willkie
-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Manfredi, Albert E
Enviado el: Monday, February 11, 2008 2:12 PM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Perspective
Ofcom has made available the DTV tower locations for some parts of its
new digital network.
http://www.ofcom.org.uk/tv/ifi/tech/transmaps/
The only ones I get to respond are the Channel Islands and Westcountry.
So take a look at Westcountry, which is the Southwest tip of land West
of London, and see how many translators are being planned.
To get an idea of scale, as the crow flies, the distance between
Plymouth, located on the South coast in the middle of this Westcountry
map, and Newquay, on the West coast West of Plymouth, is about 38 1/2
miles, and yet there are multiple dozens of towers planned to cover the
area.
That's how you get good reception. And that's how you get by with
low-power transmitters. And that's why you need a TV tax.
Note to Craig. This ain't no stinkin' SFN.
Also observe this note:
"Note: Transmitter coverage does often overlap, and viewers may not
necessarily be receiving signals from the nearest transmitter."
This is in essence a note that would translate here, "Cliff, if you want
DTT, you may need to use Baltimore rather than Philadelphia." Although,
of course, the distances are way different.
Bert
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