[TowerTalk] A couple of 18HT questions

[Allen Brier N5XZ]

I have the hole dug for my new 18HT tower but still a few more questions:

 

1.       The base consists of three 1.75 in by 0.25 in thick aluminum "base
tubes" with long bolts on the bottom which is pushed into the concrete
immediately after the pour. Is there any problem with the aluminum
contacting the concrete producing any kind of adverse chemical reaction?

2.       The rods only go into the concrete perhaps 18 to 24 in. Is that
sufficient to hold the tower in the concrete?

3.       I have been told that the PVC insulators which are at the top of
the top tower section should be replaced with Teflon due to high voltage at
that point while using the antenna on 160 meters with the base loading coil.
(Note I plan to use a larger physical coil than Hy-Gain recommends). Any
truth to that?

 

That is all for now.

 

Allen R. Brier N5XZ

1515 Windloch Lane

Richmond, Texas 77406-2553

(281) 342-1882 (Home)

(713) 705-4801 (Cell)