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Another thing that can happen - trees grow and could be blocking line-of-sight (LOS) toward Orlando. A NM of 38 for WOFL is plenty of signal, but you are pretty low at 15' and that's well under the treeline ... even under the bushes line. Trees are full of water and they cause a lot of attenuation and multipath problems. And an attic installation costs a lot of signal strength, if it works at all.
Also, digital TV is an all-or-nothing proposition typically. Both 39 and 26 are stronger than 22 and they could be above the threshold for reception, even though they are brodcasting from the same direction.
Last edited by timgr; 3-Nov-2014 at 12:20 AM.
Reason: sight, not site
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