Hi Ron,
You wrote:
> I never thought the dielectric properties at
> 2,550 MHz (or whatever it is) is any
> indication of it's suitability at 28.1 MHz.
I agree!
Another thing people neglect is even a poor dielectric has negligible
effect is the electric field is mostly outside the dielectric.
For example, I use only 50 or so Lexan spreaders in my line and they occupy
a very very small area between the conductor. I care less how poor they are
at 30 MHz, as long as they don't melt from heat.
Now if I had the dielectric surrounding the wire for dozens or hundreds of
feet, I'd be a lot more concerned.
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|