[opendtv] Re: COFDM and equalization
- From: "Allen Le Roy Limberg" <allimberg@xxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 21 Apr 2004 08:11:28 -0400
I think you have it backwards, Craig. COFDM needs higher power to reach
same radius, which makes it a worse co-channel interferor to other signals
than QAM or 8VSB.
Al Limberg
----- Original Message -----
From: "Craig Birkmaier" <craig@xxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Tuesday, April 20, 2004 4:40 PM
Subject: [opendtv] Re: COFDM and equalization
> At 6:35 AM -0700 4/20/04, Doug McDonald wrote:
>
> > Our town is an
> >excellent example: we are right on the boundary
> >of a certain Fox dtv station, and 3 dB really
> >does make a big difference: people on the
> >east side of town seem to be unable, normally,
> >to get it: but with a 0.5 dB NF preamp I have tried
> >at a couple of places, instead of a 4 dB NF preamp,
> >they get it. Thus, 3 dB more transmitter power
> >and it would work ... and with COFDM, the
> >edge would move about 4 miles west: to the edge
> >of town, and very very few would get it. Thus,
> >POWER REALLY DOES MATTER, and our town shows why
> >we made the right choice.
>
> As I recall that station is not licensed to serve your market.
>
> More power just means that their signal will encroach on more ares
> that are not in the market for which the station is licensed.
>
> If my recollections are incorrect, I apologize in advance.
>
> Regards
> Craig
>
>
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