A few weeks ago there were some posts about what channel WRTV-DT would eventually be using on a permanent basis. I asked WRTV engineer Paul Roehm about this and he recently replied with the following:
"I don't know that an "official" decision has been made. But, there are a
couple of issues that we have considered. The FCC has allocated no channel
6 DTV stations, and has made noise about taking 82 to 88 mhz to expand the
educational FM band. So there may not be any 6 to go back to. Several of us
have really serious doubts about whether 8vsb is going to work on low band
VHF. In one article that I read in one of the trades, the author said that
by his calculations, in real terms, that it was going to take a lot more
power than the few low band dtv's had been allocated to really make
pictures. Especially in another 9 or 10 years at the peak of the next
Every 11 years, at the peak of the sunspot cycle, we have terrible problems
with interference from auxiliary services, other stations. During that last
cycle peak, we received interference on our precision demodulator from the
Channel 6 in Milwaukee, and the cable headend in Terre Haute received
interference from Paducah Ky.
There already seems to be some differences in coverage just based on some
experimental work that we have done, and some e-mails that I have received.
We know that the DTV transmitter provides reliable coverage at a greater
range than the analog, given a good antenna system. I have a viewer in
Monon, Indiana that can get 25 reliably, but can't get 6. And, when we were
doing some testing early on, we took a DTC-100 to the Terre Haute head end
and were able to get 25, 45, & 46 off their channel 20 antenna, but couldn't
get 9 off their channel 8 antenna.
When we built out the Digital system, we went on the air in September 1999
at our full licensed power (898kw) and we took the channel 6 antenna off the
top of the tower and replaced it with a channel 25 antenna. Then put a new
wrap-around channel 6 antenna below it.
As I said, no official decision has been made."