Any of you guys use an RF meter to check frequency after installing U.FL cables?

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Last week, the coax cable plug on my 2.4ghz antenna came loose.

I fixed it but also had a problem with one of the U.FL cables, which spun from over tightening.

Do you guys think a meter would be useful for checking these cables before opening up the transmitter, or finishing an installation?

Cornet ED78S
 
The cable itself can be checked with an Ohm meter for end-to-end continuity of the shield and center conductor as well as to verify isolation between the two. Do this with the cable removed, not while attached to the PCB.
 

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