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Like living on the edge, eh?
I doubt you will get all four Columbus stations reliably most of the time. I would be pleasantly surprised if you did. I'd suspect okay reception during favorable conditions, but none as soon as the propagation conditions wane.
The beam-width is fine but the forecasted signal powers are pretty marginal.
Preamplifier gain does not add to your noise margin, only the antenna's net gain does that. Instead, the amplifier's noise figure must be subtracted from your calculated NM. If you don't know the Moto's NF, I'd recommend using a pre-amp of known performance such as our PA-18 which I've measured to be between 1.8 and 2.2 dB (frequency dependent) on our 8970A NF meter.
Additionally, all those channels have co-channel interference warnings. You might find that what little desired signal makes it to the antenna gets clobbered by interference.
Good luck and let us know your results.
Antennas Direct Tech Support.
Last edited by ADTech; 5-Aug-2010 at 11:41 PM.
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