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   Bruce Perens K6BP (bruceperens_k6bp@mastodon.radio)'s status on Saturday, 18-Jan-2025 10:57:39 JST Bruce Perens K6BP

   Found on Amazon: this product adapts a BNC female connector to be another BNC female connector. Someone was not clear on the concept.

   https://www.amazon.com/dp/B0DP4KG522

   • Embed this notice
     Richard W4\G7EIX (g7eix@mastodon.radio)'s status on Saturday, 18-Jan-2025 11:24:39 JST Richard W4\G7EIX

     in reply to

     @BrucePerens_K6BP I laughed, then looked, and found a valid reason. 🤷♂️😀

   • Embed this notice
     KA7O (ka7o@mastodon.radio)'s status on Saturday, 18-Jan-2025 11:49:50 JST KA7O

     in reply to

     @BrucePerens_K6BP

     maybe as a port saver?

     Stick these on a bench tool - o'scope, VNA, SA, etc - then pug and un plug to hearts content on the adapter. When it wears, replace it. Save the port on the machine.

   • Embed this notice
     Bruce Perens K6BP (bruceperens_k6bp@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:08:53 JST Bruce Perens K6BP

     in reply to

     • Onno (VK6FLAB)
     • KA7O
     • jbm

     @vk6flab @AJ9BM @KA7O - My semi-pro VNA came with a tiny torque wrench for repeatability in SMA connection, I think that would increase wear. I do notice that the cable internet techs torque those F connectors down severely or they hardly work at all.

   • Embed this notice
     Onno (VK6FLAB) (vk6flab@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:08:55 JST Onno (VK6FLAB)

     in reply to

     • KA7O
     • jbm

     @AJ9BM @KA7O @BrucePerens_K6BP so far the closest I've come to that is using a short SMA patch lead on the NanoVNA. Any recommendations for an SMA port saver?

   • Embed this notice
     jbm (aj9bm@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:09:07 JST jbm

     in reply to

     • Onno (VK6FLAB)
     • KA7O

     @vk6flab @KA7O @BrucePerens_K6BP 500 matings is not at all long for test equipment. I probably put a dozen or two cycles on my NanoVNA when building a linked dipole for 10/15/20/30.

     I've been noticing some sloppiness after a few years' use, so I just put portsavers on it a couple months ago. Hopefully they work, because replacing those giant SMAs sucks enough that I'd probably just get a new one and experiment on this unit.

   • Embed this notice
     Onno (VK6FLAB) (vk6flab@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:09:08 JST Onno (VK6FLAB)

     in reply to

     • KA7O

     @KA7O @BrucePerens_K6BP

     Interesting that you raise the cycle count for an SMA connector. 500 cycles in my radio shack is likely going to exceed my lifetime.

   • Embed this notice
     Bruce Perens K6BP (bruceperens_k6bp@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:09:44 JST Bruce Perens K6BP

     in reply to

     • Onno (VK6FLAB)
     • KA7O
     • jbm

     @vk6flab @AJ9BM @KA7O - I can't recommend an SMA port saver on a VNA, it's going to add reactance.

   • Embed this notice
     Onno (VK6FLAB) (vk6flab@mastodon.radio)'s status on Saturday, 18-Jan-2025 14:27:38 JST Onno (VK6FLAB)

     in reply to

     • KA7O
     • jbm

     @BrucePerens_K6BP @AJ9BM @KA7O you can calibrate the NanoVNA and include the port saver in the calibration.