Re: QCX mini: RF output BNC or SMA #poll-notice
At one stage in my professional life I worked in a components
factory which made SMA, TNC, SMB, BNC and you name it. We also
made semi-rigid and flexible cable assemblies for space and
general aviation applications.
The network analysers we used had SMA on the ports as we measured up to 26GHz in the day. They were good for more than 50 mate/demate cycles but they were of high quality.
I agree that TNC is a resilient connector and would like to see it used more.
If a connector fault was reported or something sent back we would measure what we could and if in doubt pot the connector and section it to see how the assembly materials fared. I did see one example of a faulty SMA where some metal of the inner connector dislodged, made its way through the dielectric to the outer core and short circuited.
PS BNC connectors are OK up to 4GHz
On 06/08/2020 14:39, Dave wrote:
The SMA is only rated for 50 mate/demate cycles, and that is for the real gold plated versions. Quite a nice connector for applications that call for a very few disconnects, like inside equipment.