If multi-path is suspected, whether in an attic or outdoors, try relocating the antenna to see if you can find a spot where the errant reflections aren't at. At UHF frequencies, it might only take a foot or so at a minimum, but be prepared to try multiple locations.
Hauppage's website has a signal meter utility available for the 2250. You might try downloading and running it instead of the WMC meter. The Hauppage meter will give the SNR of the signal instead of some arbitrary "meter" reading. You may find it to be much handier for diagnosing your reception issues.
Last edited by ADTech; 7-Feb-2012 at 2:57 PM.
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