An L network with a coil in series and a 500pf variable to ground might do
the trick. You impedance of the antenna is to low and you need to bring it
up. You can also try extending the top hat wires by 20' each and see what
difference that makes.
Herb, KV4FZ
On Tue, Sep 18, 2018 at 5:44 PM Ashraf Chaabane <ash.kf5eyy@gmail.com>
wrote:
> Hi all,
>
> I just finished setting up my vertical antenna for 160 in 3V8SF
> location. It is 17m (55 ft) long with 2 top loading wires 12m each
> (40ft), angle to vertical about 40 deg. I added 8 radials, 20m each
> (65ft).
> With no shunt matching, the SWR at antenna base is 3.2 and at radio side
> is 2.8. Is there any way I can improve the SWR further?
>
> Photos of the antenna along with SWR curve can be found here:
>
> https://drive.google.com/drive/folders/1_3FsWZI3zdi56zz0LOiKNOmfgiWeN6yG?usp=sharing
>
> 73 Ash 3V8SS/KF5EYY
> www.kf5eyy.info
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