[TowerTalk] caps for Rohn 25 top section

[dave@egh.com]

Hi Dennis,

        I cap mine because I worry about internal rusting as well as ice.
I used pieces of a truck tire tube held on by a stainless steel hose clamp.
(The rubber deteriates every few years, but a junk tire tube is usually free!)

        Besides those concerns, any open pipe will have a certain resonant
frequency which will cause a hum when the wind blows across it at a particular
speed.  The hum can be quite annoying!  For this reason I also cap the mast
(using an adjustable rubber plumbing plug - which I have never had to replace).

73, Dave Clemons K1VUT


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