Thanks for advice, just like Jerry suggested, I could for instance use alligator clips. I should have been more precise and say that the NanoVNA came with a short cable with SMA on both ends and I wanted to attach the coax to that, so snapping the connector of the board won't be an issue.
BTW I got my license few days ago, OK9PVV here :) I just don't have HF TRX yet, so I just wanted to experiment with my CB a bit.
