SWR testing 1:1 common mode choke balun design from TRX Bench

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 :    • Attenuation testing 1:1 common mode choke ...   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)    • #101 Balun PART 2: Balun's magic and how t...   Video 100 Balun PART 1: Broadcast Interference, Common Mode Current and Balun's magic    • #100 Balun PART 1: Broadcast Interference,...   Video 105 Balun PART 3: How to build an effective working 4:1 Balun for 800 watt HF power    • #105 Balun PART 3: How to build an effecti...