[TowerTalk] Adding Expanding Foam inside boom
jimlux at earthlink.net
Thu Apr 26 17:52:08 EDT 2018
On 4/26/18 1:31 PM, Kimberly Elmore wrote:
> In a similar vein, I'm helpingto rect an antenna in a relatively
> inaccessible location and want to minimize element vibration. I have no
> intention of tryingto fill each element with foam, but I've read that
> securing a rope inside the element will prevent resonant vibration from
> occurring. If this is true, will something like "parachute cord" do the
> trick? It won't be exposed to eather, so UV deteriorartion isn't an issue.
An even better way is to wrap the rope in a spiral on the outside. That
kills the wind induced vibration very effectively. (you see this on car
doesn't even have to be the full length.
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