In a message dated 11/17/01 8:05:30 AM Eastern Standard Time, w8ji@akorn.net
writes:
>
> My point is simple.
>
> One of the big common myths in antennas is that a simple
> inductor in series with a line, or a combination of series
> components, can change "length" or make an antenna (or in this
> case ground lead) "longer", or a different "electrical length".
>
> That myth isn't true. Transforming impedance requires both shunt
> and series reactive components, and there is no way to get a shunt
> component when working with two terminal devices like this.
>
So when I insert loading coil 2/3 up in the mobile antenna and bring it
(shorter physical length) to resonance on desired frequency what kind of
"length" is it?
Yuri, K3BU/m
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|