Suggestions for a 2m roll-up vertical antenna

[OE5JFE]

Have a look at the sketch that Peter OE5AUL posted here.
I can confirm that it is working ufb.

Slim-Jim material and dimensions (ladder line, twin-lead)

Hello Jakub, I built several J-poles using the dimensions shown in my roughly sketched diagram. The antenna is measured with its top at 3m height. Maybe you have to adjust the resonant frequency by varying the top length. [J%20Pole%202m] 73 Peter

73 Joe