The Max height imposed by the FCC for a CB antenna is 60 feet to the tip, or 20 feet from the top of the roof. My understanding of the interpretation of the roof top wording is that it is really intended for commercial buildings, not residential.
If you have a Amateur license you are allowed antenna height up to 200 feet without any special permission, unless you live near an airport. Oh yeah, don't forget about those Home Owner Associations and local ordinances, too.
Moleculo
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