I think recommending something basic first is the right way to go indoors. Here's why. In one room here, a classic bowtie performs better than a 2-bay with documented gain numbers. The 2-bay got Diablo better, but was terrible for Walnut Grove. Had I started with the 2-bay, I don't know what I would have thought. It's not logical to go for less gain, but that is exactly what has worked.
This just confirms what I said before. It's not possible to predict which antenna indoors will work best because you're not dealing with a normal situation where the signal is coming from the direction of the transmitter and you need to reject signals from other directions. You're trying to pick out a strong reflection among many reflections. A person would probably be better off to buy a bunch of antennas that can be returned, try them all and keep the one that works best in that particular environment. It could turn out that different antennas are best for different stations.
I found this on a DTV Primer page:
The 7.5” loop is representative of a large class of indoor antennas built around a loop or something similar.
I strongly agree with this. If the various flat panel antennas were modeled and the signals were measured on a spectrum analyzer I doubt that the results would be much different from a simple loop.
Edited by Calaveras - 1/17/14 at 9:38am