If you saw no signal at -95 dBm noise floor in the SA, there isn't any signal there to be had.
In the interactive maps feature, pinpoint your location, set elevation to 500', then locate and click on the button for WLIW. That will get your the calculated coverage including the effects of terrain. WLIW only puts about 50 kW in your direction, so, unless you are on top of a hill with a clear view east, you'll likely never see their signal.
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