What he said. My experience is that greater transmission-antenna height counts for much more than higher power. Here in Denver, we have two
DTV stations whose antennas are on the same tower. The 1,000-
kW station's antenna is located just 18 meters below the 800-
kW station's antenna. That's right: The lower-power transmitter is noticeably easier to pull in, even at 20 percent less power.