Jimmie wrote:
Make the antenna all one piece 1/2wavelength long and feed with a gamma
match. You can Google plenty of info on this.

Thank you. gamma match. That did the trick. As a native german speaking
I lack some vocabulary and the information in english is better.
But i
bother how i can go from balanced to unbalanced. I use rg58 wire and i
do not want to radio interfere my neighbours nor let my radio go up in
smoke.

So i guess i need a balun. The impedance at the connector from antenna
to wire should already be more or less 50 ohms, but it's balanced.

What would make an easy though effective 1:1 balun?