Probably cheapskates that buy crappy connectors and crimp tools.
Those crimp connections need to be protected from oxidation as well
Probably cheapskates that buy crappy connectors and crimp tools.
I use crimp connectors that still require soldering the center.
I use crimp connectors that still require soldering the center.
I'm not sure yet about connections for radio equipment but I do know that in audio equipment good connections are vital for good sound reproduction. For instance,one time I upgraded to a better sound system in my car. I installed my old sound system in my dad's truck using crimp connections. My dad complained about noise in the speakers. I removed all if the crimp connections and soldered them all. No more noise. For coax I think that good crimping tools,crimping parts,and top notch materials are must for good performance. Remember that in a connection that electrons still have to jump a gap to get to where they are designated. It's all in reducing that gap space.
It's not about reducing any gap. It's all about making a strong and secure mechanical connection when you crimp. That will ensure a good electrical connection. In all my thousands of crimped electrical connections I have probably had about a dozen failures mostly due to salt corrosion or poor wires to begin with. If I have that luck with coax I will be laughing.