Hi all,

I was experimenting over the weekend to design a 1:1 Balun and a 1:9
Unun. Unfortunately I have been not very happy with my results.

Finally I realized that my Vectronics SWR showed a frequency depending
SWR of up to 1:2 at higher frequncies, if I used simple 1,5 inch wire
clips with a 50 Ohm resistor connected to the PL plug.

My setup was: the Vectronics, the Balun or Unun and a termination
resistor, either 50 Ohms or 450 Ohms, very tiny carbon resistors. The
wires of the Balun and Unun have been just an inch or so on each side.

By connecting the resistors as short as possible to the PL plug of the
Vectronics, I did see a 1:1, so it's the setup that makes a mess.

How can I measure a Balun or Unun, what setup do I need?

Thanks for your replies in advance,
73s de Wolfgang
OE1MWW