Testing SWR on a 1:1 balun common mode choke found on TRX Bench channel. Please see the link below to review his excellent work.
I cannot test common mode attenuation since I do not have the right equipement at this time. The only thing I can test for the moment is the SWR across all HF amateur bands using a dummy load and my radio. I think that it will prove that impedance seems to stay stable across the bands even though the wire specification is unknown.
I have a follow up video on testing the attenuation performance of this balun choke using a nanovna here :
https://youtu.be/k2DAyvciyow
Please visit TRX Bench videos about the BalUn subject.
Video 101 Balun PART 2: Balun's magic and how to wind an effective working Balun (that is the particular video where I took the information to build mine)
https://youtu.be/JhAPJISUjB8
Video 100 Balun PART 1: Broadcast Interference, Common Mode Current and Balun's magic
https://youtu.be/kMlKfHHR8FY
Video 105 Balun PART 3: How to build an effective working 4:1 Balun for 800 watt HF power
https://youtu.be/P7wW4TtXmc8
