On Wed, Jun 7, 2023 at 10:17 AM, Jim Lux wrote:

I use 6-12" jumpers with SMA plug on one end and SO-239 (or PL-259) on the
other end. For HF, the 6" makes very little difference, and for VHF/UHF, you
can figure out how to calibrate it out.

Yes, that's a great idea!
I happen to use one a bit longer -
https://www.amazon.com/gp/product/B07FC825HF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
but I do use it often.
Long and short USB C-to-C cables are also very helpful.
--
Doug, K8RFT