I looked up some specs for my radios. The Linksys WMP11 receive
sensitivity is around -82 dBm and the Zonet ZEW2501 is about -85 dBm.
I take it this means I need 6.31 uW to get a signal into the Linksys
and only 3.16 uW for the Zonet. Does that sound right? I think there's
probably some variation these is in these specs from unit to unit but
the lower Linksys sensitivity could explain what I see.