[opendtv] Re: 5th generation Test

  • From: "John Shutt" <shuttj@xxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Tue, 15 Mar 2005 13:08:41 -0500


You know as well as I do that the COFDM box used in the MSTV tests was a 
wideband front end modulation monitor, and when it was used with a front end 
filter (as you suggested be done with Bob Miller's latest test unit) it 
performed very well.  You also know that the COFDM unit outperformed the 
ATSC unit using indoor antennas at 6 feet, where the front end was less 
likely to be overloaded.  It was the outdoor antenna performance that gave 
the overall nod to the ATSC unit.  Even then, the "angle of acceptance" was 
in many cases 360 degrees for the COFDM unit, while it was 90 degrees or 
less at the same location for the ATSC unit.

You also know how well the 6 MHz modified Nokia boxes worked in the 
Baltimore area in 1999, which is not a benign RF environment.

And I take your comments comparing me to Mssrs. Miller and Nolan as a 
compliment.  I refuse to rewrite the history of the 1999 Sinclair Baltimore 
tests, and I still have my own personal experience with ATSC in my own 

If you want to see how COFDM boxes perform in a very tough RF environment, 
please watch this video clip:



John Shutt

----- Original Message ----- 
From: "Doug McDonald" <mcdonald@xxxxxxxxxxxx>

> Uh, NO, since, as you recall, a COFDM box did abysmally badly
> compared to an ATSC box in the MSTV tests, since the COFDM box
> had a bad front end.
> The Euro STBs DON'T perform all that well RF-wise.
> You are getting to be just like Bob Miller and Dermot Nolan.
> Doug McDonald

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