Hi Junior, if you test a loop, you are going to see a short, because it is, at DC, wich is what you are testing with a meter, but it does not look like a short to the radio, or you would hear a great differents in noise level etc, when you screwed the connector, aas aposed to just plugging in the center pin! HTH: J. John Jacques Amateur Radio Station: KD8PC "Where Cat Is, Is Civilization!"