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Testing a PCBA with an SMA connector

Jpl-TestBench , 03-31-2025, 12:39 PM
Hi all,

I'm working on automating the tests for a PCBA which has several SMA connectors (for RF signals). Right now we need to manually plug in the testing device which means screwing and un-screwing the SMA male and female connectors. I'd like to avoid this process which takes time.

I tried using a test point to read from the trace on the PCBA but the signal is very noisy and unstable so that didn't work.

Has anyone already encountered this issue/have suggestions?

Thanks a lot,
Jpl
QDrives , 03-31-2025, 03:45 PM
https://ingun.com/en-GB/product-finder/test-probes/radio-frequency-test-probes/coxial-standard/sma/
Jpl-TestBench , 04-01-2025, 01:13 PM
Nice, thanks for the link! Have you already used such a probe before?
QDrives , 04-01-2025, 07:48 PM
No. I have never used SMA or other RF connector.
Colin , 04-06-2025, 03:54 AM
Look for unthreaded push on or quick connect SMA adapters
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