ADTech,
Thanks for your explanation.
91XG Antenna - "Our most powerful uni-directional UHF antenna."
- "Wideband coverage of UHF channels 14-69"
- Dimensions 22" H x 20" W x 93" (7.75') Deep
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- Rescaled for coverage of UHF channels 14-51
- Approx. dimensions (increased by 20%): 26.4" H x 24" W x 111.6" (9.3') Deep
For those on the fringe of DTV UHF reception, especially where multi-path interference may be also be an issue, a rescaled 91XG would be greatly appreciated. The digital "cliff effect" is annoying. While it would be larger (~1.5' longer), it would still be a manageable size compared with the all-in-one combination VHF / UHF yagi antennas.