[opendtv] Re: New PrimeDTV PHD-100 OTA STB

  • From: "Albert Manfredi" <bert22306@xxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Mon, 30 Jan 2006 21:09:46 -0500

Richard Hollandsworth wrote:

>In the dozens of spec sheets and app notes that I've read,
>I've never seen a separate RF/IF Tuner Module just for NTSC.
>They all show a common RF/IF Tuner.

Even so, it seems that if nothing else, two demods operating at the same IF 
can create leakage. But also, as long as NTSC is still on the air, and as 
long as we see evidence of co-channel interference between NTSC and ATSC 
stations that are not adequately separated, it seems that a combined 
ATSC/NTSC receiver would be more vulnerable to self noise than an ATSC-only 


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