Topband: Making your own Base Insulators

[KL7RA]

Dick, W7WKR writes:

>In the past I have made my own base insulator for R-25 towers. 
>To do so, I drilled three 1"-diameter holes in the HBP-25 in which
>I inserted some machined insulating spacers. 

This is the way I insulated my topband 1/4 wave Rohn 25 vertical as well.

I used the BPH 25G hinged base plate for concrete. I just removed the 
bolts that attach the triangle plate with the stubs for the tower section and 
rotated it to clear the hinges. I also used three 1" diameter holes with the 
machined spacers and washers made from Teflon. The hinged part of the 
base plate is resting on a sheet of Teflon.  

Seems to me someone could sell an insulating kit with the base plate 
sheet of Teflon, three spacers and washers for cheap. 

I installed a very simple and clean series fed, insulated base, full size 1/4 
wave vertical with 150+ radials on the ground far from the HF towers 
using phillystran for guys only after a few years of frustration "fussing" 
with a gamma matched, top loaded, seasonal Z shifting, narrow bandwidth,
grounded PITA version. (How's that for a whopper of a sentence.) I 
could add more words but I got the supper call....

73 Rich KL7RA