Topband: "T" Antenna VS 30m high vertical

[GEORGE WALLNER]

On Sat, 25 Jul 2009 12:38:48 +0200
  "ik0yvv\@libero\.it" <ik0yvv at libero.it> wrote:
> Now i'm using an 18m vertical with 2 slope wires (each 
>10m long and with an angle of about 45° ...i tune this 
>antenna on 160 with a coil (about 21uH 20cmx20cm) and on 
>80m with a vacuum capacitor .... 
> I was thinking to take down this antenna and putting a 
>30m high vertical without the 2 capacitive wires .... 
>those 2 wires gave me in the past several meccanical 
>problems ... eznec it seems that the antenna i'm 
>using now has a better efficency 

Marco,

I was facing the same problem: had to get rid of my top 
wires for mechanical reasons. First I tried a 31 meter 
tall vertical fed via a 20 uH inductor. It worked but not 
as well as what I had before. Then I moved the inductor up 
to the 13 m point (about 40 uH) and since then I feel (and 
EZNEC indicates) that I have a better antenna. I believe 
that the numerous EU QRP QSO-s confirm that belief.

GL,

George
AA7JV