I do not believe an L will provide 50 ohms at the base. I believe it is
closer to 22 ohms. Everyone I know has some type of matching. This could
be an unun or caps. You really need to have radials for the L to work
properly.
Search the archives and you will find a source for the Unun's. They are not
too pricey. They make one that have a number of different tap points. I
simply used an antenna tuner at the base.
On 12/12/07 5:18 PM, "RLVZ@aol.com" <RLVZ@aol.com> wrote:
> Hi Guys,
>
> I've been doing research on 160-meter Inverted L's and would appreciate your
> thoughts on the following:
>
> 1) Some people report that the 160-m. Inverted L can be fed directly with 50
> ohm coax with good results. Is that true?
>
> 2) Some people feed their Inverted L's with fixed 500 or 1,000 pF
> capacitors. What advantages does this offer, such as: lower SWR at
> resonance, and/or
> increased bandwidth? (again these are "fixed" capacitors not variable)
>
> 3) Can you offer a good resource for the 500 or 1,000pF capacitors that will
> handle a Kw?
>
> I realize a variable capacitor is best as you can move around the band
> better... but for this temporary 160-m. Inverted L... I'd prefer Options 1 or
> 2
> above.
>
> Best 73,
> Dick- K9OM
>
>
>
> **************************************See AOL's top rated recipes
> (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|