[opendtv] FCC's final round of DTT channel elections

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Wed, 15 Nov 2006 13:06:44 -0500

FCC 06-150 gives the final assignments post-transition.


Looks like some of the UHF channels (that I'm familiar with) will be
tweaked up a little in power a little after NTSC goes off, but the few
stations that return to their VHF allocations are really going low
power. Even by Euro standards.

Example: Baltimore NBC 11, going to 6.91 KW ERP. They are marginal for
me now, as a UHF channel, and I think they drop out after they return to

In that example, antenna height remains 312 meters. Propagation loss
between Channel 11 and their current Channel 59 DTT allocation differs
by about 11 dB, whether free space or Hata model are used. If you
increase 6.91 KW by 11 dB, you get 87 KW ERP. But they are now
supposedly transmitting 513 KW ERP. Looks like they will experience a
substantial loss of coverage?

Mark Aitken's channels are staying the same, looks like. Frequency,
power, and antenna height.

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