> As for the shield, there's no question in my mind that crimping is
> superior to soldering.
When I was working for RKO Radio in Chicago back in the early '80s, we
analyzed return loss measurements of various crimp v. soldered connections.
This was an important consideration when measuring synchronous AM noise in a
bandwidth-limited FM system. Among other factors, accuracy in the depth of
measurement was dependent on the quality of connector. Crimp N connectors
were superior to soldered N for this purpose.
I have no doubt that a well-crimped connector is better, at least for the
short term. However, I have a problem with a universal statement that all
crimp connectors are the better performing type regardless of environment
and age of the crimp.
For outdoor installations where the connector is exposed to water, ice, or
high levels of humidity, I cannot see using crimp UHF/BNC/N connectors.
For indoor cabling, I've standardized on RG-400 coax with crimp connectors.
They work well although in instrumentation cables that I use often where
they are subject to a lot of handling, the soldered connectors have held up
better over time.
So, I think the environment needs to be qualified before we claim that one
type of connector is superior that of another.
Paul, W9AC
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