[opendtv] Re: FCC/OET Report re DTV Tuner EMI Tolerance

specific geographic exclusions -- using the 'all populated places" reference 
point for the location of the public service channels, with specifically 
mentioned short-spaced interference exceptions, using the then existing 
coordinates of the licensed/authorized facilities.

The zones are right at the head of the FCC TV technical rules.  Every engineer 
who has read the rules has seen them.  Most hope that they never have to work 
in the zones.

it might be helpful to look into the channel 69 WVUE New Orleans case; they had 
to make many changes in their plant before going on the air to prevent 
interference and I don't ever think they were ever permitted to use full power.

John Willkie
  ----- Original Message ----- 
  From: John Limpert 
  To: opendtv@xxxxxxxxxxxxx 
  Sent: Saturday, April 07, 2007 3:39 PM
  Subject: [opendtv] Re: FCC/OET Report re DTV Tuner EMI Tolerance


  How did the FCC address possible interference when they licensed use of the 
UHF T-band (470-512 MHz) to local governments in major metro areas?


  On 4/7/07, Richard Hollandsworth <holl_ands@xxxxxxxxx> wrote:
    FCC/OET-07-TR-1003, "Interference Rejection Thresholds of Consumer DTV 
Receivers", 
    30Mar2007, has been released for comment....all 221 pages worth...

    Although it is intended to address the impact of unlicensed use of the 
"White Space" in the TV spectrum,
    a considerable portion of the report addresses the overall ability of 
various "5th generation" DTV tuners 
    to tolerate intermods and other interference:
    http://www.tvtechnology.com/pages/s.0015/t.4623.html 
    
http://www.fcc.gov/oet/info/documents/reports/DTV_Interference_Rejection_Thresholds-03-30-07.pdf
 




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