from:
Fred Hopengarten K1VR 617/259-0088
Six Willarch Road
Lincoln, MA 01773-5105
permanent e-mail address: fhopengarten@mba1972.hbs.edu
In a message dated 97-10-29 11:23:31 EST, wbh3@chrysler.com writes:
>
><< I recently obtained some 75 ohm hardline from my cable company. In
> talking to the gentleman who gave it to me (and is also a ham with a
> lot of antenna experience), I asked him about a means of matching the
> 75 ohm hardline to the 50 ohm input for my Icom 765. His comment
>was
> basically not to even bother or worry about it.....just hook it up
>and
> go for it. While he certainly seems to know what he is talking
>about,
> I am still curious as to whether this will work as easily as he says
>it
> will?
K1VR replies: Am I missing something? If this is a monoband application
(an issue which is not addressed in the question), any loyal member of
the Yankee Clipper Contest Club would use a nonsynchronous matching
transformer (made of a short length of RG-11 and a similarly short
length of RG-213) at each end. This design, which has appeared in an
article by K1XX, is simple to execute, cheap, broadband, and low SWR. I
use such transformers on 80 and 40 with 75 ohm hardline.
--
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
|