[opendtv] Re: OTA

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
  • Date: Thu, 8 Mar 2012 15:03:07 -0600

Craig Birkmaier wrote:

>> AND we live in a valley.
> Las Vegas is a valley too, with a whole bunch of multipath
> generators in the middle.

You misunderstood my point.

We live in a valley that is quite distant from the transmitters. The DC market 
area can hardly be described as one giant valley. The towers are way out there, 
on higher ground but not within anything approaching LOS, and we live in a 
relatively narrow, small valley.

The LOS "requirement" is therefore, far as I can tell, not factual anymore. May 
have been for the 1st gen receivers, I wouldn't be surprised, but things change.

I think that Frank Eory wrote a very good ATSC document years and years ago, 
stating that the expectations for DTV reception had changed. All I'm saying is, 
receiver performance changed too, after that document was published.


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