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Television signals are transmitted in either horizontal or elliptical polarization. This means that the DB4e and similar antennas will perform best if oriented so that the 'bow-tie' elements extend left and right of the antenna center line. You will loose a significant amount of performance if you rotate the antenna 90° from it's designed orientation.
Generally, mount the UHF antenna at the top of the mast, and the VHF antenna 3' to 4' below. This means that a 5' mast lacks the room needed for a UHF and separate VHF antenna.
UHF and VHF antennas produced commercially (as opposed to home made designs) function well when mounted on a metal mast. The typical metal mast used for OTA TV antenna mounting is about 1 3/8" in diameter. In recent years I have found it difficult to find "TV antenna mast" in lengths other than 5'. My solution has been to use chain-link fence top-rail. I find it in stock at places such as Home Depot. It's 1 3/8" in diameter and 10.5' in length. It even has a swedged end, designed for stacking multiple sections end to end. And perhaps best of all, it's reasonably priced.
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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
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Last edited by GroundUrMast; 12-Jan-2014 at 7:42 AM.
Reason: chain-link top-rail
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