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Old 02-25-2014, 05:41 AM   #2
W9WLS
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Location: Oakland City Ind.
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There really is no reason not to , EXCEPT for the physical limitations of the mast material and / or guying / support arrangement of the mast it's self.
Many antennas by design are "ground independent" meaning they are isolated from the support mast / structure (the Gap Titan comes to mind here) but one way or another they do work against ground .
The military has used "fiberglass" mast section kit's for antenna supports for many years for everything from small UHF antennas to large dipole array's.
PVC, has some draw back's , some is not too tolerant of U/V radiation (Sun Light) for long exposure, wall thickness in the material is another thought relative to build strength.

Bottom line is,,, Plan WELL, chose the material wisely, and expect the "UNEXPECTED" when installing (Murphy's Law).
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