[TowerTalk] 75/80 vertical

Gregg Seidl k9kl at centurytel.net
Fri Mar 20 20:56:46 PDT 2009


Well now that most of the snow has melted its time to finish last years 
antenna projects!! My question is this: I installed 60 feet of Rohn 25 
insulated from ground. I used the tapered top section as I'm going to use a 
peice of pipe to "finish" the length.  I'd like it to resonate at 3.8 Mhz. 
About how much pipe do I need to add to make it work. I have one of Array 
Solution AS-80 tuners. I will be using about 60-80 radials about 60-100 feet 
long. Tha way the tuner works is it needs to resonate at 3.8 or so and then 
it switches in inductance to tune it to 3.5 and 1.8.
 Does Rohn 25 typically make a good connection between sections? I was 
thinking about running a piece pf copper wire from bottom to top secured 
with some copper-ox and circle clamps. Good idea or??  Thanks  Gregg  K9KL 




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