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Lost an entire GPS signal in a Cessna 172 over Phoenix last Tuesday

I was doing a routine avionics check at KSDL when the GPS dropped all satellites at 3,500 feet. Turned out a loose coax connector at the antenna base was the culprit after I wasted 30 minutes rethinking the whole install. Anyone else had a bad connector eat up your troubleshooting time?

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2 Comments

the_olivia2mo ago

That loose coax thing got me too.

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mark_cooper2mo ago

Wait, did you try tightening the connector first or was it actually loose inside the cable itself? @the_olivia I think a lot of people mistake a loose barrel connection for a bad crimp inside the fitting.

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