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When you say, when channel 42 "comes thru", is it analog, i.e. snowy, ghosty, barely watchable picture, or is it digital, crystal clear picture?
I suspect there is a distant station on channel 42 that you are receiving that is on NBC, which would be caused by an atmospheric condition called troposperic ducting, where the TV signals travel great distances, sometimes hundreds of miles. Your location may be a sweet spot for that station at certain times.
Last edited by kb2fzq; 2-May-2010 at 11:20 AM.
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