[Elecraft] Antenna Question

[Charlie T, K3ICH]

I'm curious as to exactly why a "junk" connector supposedly has so much more
loss than a "good" connector?

They're probably both (nickel, silver ???) plated brass with a dielectric
insulator usually Teflon,  phenolic or ??

Is it the plating, the insulator, the fit of the threads, the
solder-ability, or what, that makes the lossy?

I can understand it if the dimensions are way off or they don't thread on
properly, but that should be obvious in the installation process.

Not trying to start a fight or insult anyone.


73, Charlie k3ICH