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KNR,
According to TV Fool, all of your OTA stations that I would be interested in (green) should be receivable with an indoor “set top” antenna (depending on house construction & # of TV sets, etc.) so the RCA ANT-751 is quite adequate for your location. I live in Moreno Valley, 23-24 miles further away from Mt. Wilson but unfortunately all of my reception is 1&2 Edge. I generally try to buy more antenna than TV Fool would dictate to compensate for propagation effects (signal fade), multipath, buildings, trees, aging & distribution losses -which are not taken into account by TV Fool. The cost differential is usually in the noise when you include the time invested erecting the antenna, cabling and other associated costs.
An FM Fool report @ 15’ for Yorba Linda shows quite a few Line of Sight stations, again, that should be receivable with an indoor antenna. Take a look for your exact address to decide if there are stations in the yellow and/or pink area that you deem worth going after with a dedicated FM antenna. I’m envious of your reception potential.
I’m not sure what to make of your intermittent sound problem. If you had included 7.1 then that would suggest loose or oxidized VHF high elements being affected by weather.
Your bi-directional distribution amplifier must be a lot newer than the broken antenna. I checked the specs. and the 3.0 dB NF is in line with most other recent CATV & OTA distribution amps.
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