On 4/20/2023 10:27 AM, Jim Garland wrote:
"The so-called phono jack used in audio equipment is a nice lesson in
bad design, because the inner conductor mates before the shield when you
plug it in;
In the context of RF, why is that bad?
furthermore, the design of the connector is such that both
shield and center conductor tend to make poor contact.
That depends entirely on the quality of the connector. There's a LOT of
cheap junk out there, as well as a LOT of cheap junk patch cables. The
RC connectors that Switchcraft sells are of very high quality and make
very good contact. I would have no problems using them at the 100W
level. Neutrik, a first rate EU company, makes a line of lower cost,
decent quality RCA and 1/8-in connectors that are quite suitable for
audio and control. Their professional XLR connectors, long the standard
in pro audio, are the best in the world, with Switchcraft a strong
second. All of these are designed for solder termination. I've served on
the AES Standards Committee with engineers from both companies.
There are also a lot of junk UHF, BNC, and type N connectors and
adapters in the marketplace -- they're sold by flaky vendors virtually
any ham flea market and all over the internet.
73, Jim K9YC
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