Easy way to gte a rough idea is to measure the power of your TX at the
TX output, then connect the coax and measure the power at the end of it.
The loss/diff should be a published figure that is frequency dependent.
If the loss exceeds the published number you have to suspect the
cable/connectors.

Cheers Bob

ml wrote:

what is an easy way to test the coax as well as the quality of
termination connector quality?