Signal Report

I recently purchased a 1:1 choke balun from Aliexpress. Voltage-mode 1:1 baluns are very common on the site, and it is quite hard to find a current-mode balun (choke). I managed to find a current-mode balun. The pictures and description in the listing described it as a current mode balun and also watertight. I've put it on the VNA to measure its common mode attenuation.  

 After a fair amount of time using the 2643251002-based common mode choke (CMC) (current balun?), I got curious about how much attenuation it presents to common mode currents. I cobbled together a test jig, and connected it to my nanoVNA.   The 2643251002-based common mode choke (CMC), with 3D printed spider, hot melt adhesive, and self-amalgamating tape.