Review on RG58A/U Coax Cable 3ft Jumper: CB/Ham Radio Connector - Workman CX-3-PL-PL, Made in USA by Blake Mannasseh

I used this jumper from my coax switch to the tuner for several months before realizing it was defective. My antenna tuner took a long time to set up and the tuner failed to save the settings which is a strong sign of "variable connection". I was able to isolate the matching problem by comparing this jumper to a known quality jumper using an antenna analyzer at the output of a coaxial switch connected to a resonant antenna. SWR was consistently >10:1 - now I see they are "currently unavailable" - which is good. Buy from a reputable seller rather than here.