Should You Solder A Crimp Connector. However when using high-quality materials its not necessary. All you are doing is flattening the connector.
If you dont have girly hands a good crimp will hold up forever. Soldering is much more tolerant of non-optimum technique. All of the LMR 400 though was using either RF Industries crimp connectors which fully function with the common 400 coax dies or LMRs EZ-400 connector which neither crimp or solder the center pin captive finger stock like you see with 12 heliax.
The joint is solid and contains no voids.
On the other hand I dont do production assembly and I have the extra 10 seconds to spare for the extra step. No-name crimp connectors and assortement boxes are usually not any good copper is too thin to provide sufficient strenght in the crimp. I had 30 years in aircraft and spacecraft dealing with wiring and crimpers. If youre the belt-and-suspenders sort you can solder after crimping.
