Yes, the Nagoya UT-72G antenna came with a permanent 10' cable, and is in the house. The LMR-400 are jumpers from duplexer to radios. Could be the antenna, radios being too close causing desencing sounds possible too. We actually had a test yesterday. My radios and repeater were all in sync. My friend got as close to a mile from repeater, and no TX or RX. He said his radio settings have been changed. I've offered my friends to take my radios to test repeater, but no one has yet. Could WIFI box cause interference?
I went to the other band, so I could transmit like a base station. They had already turned radio off, so I couldn't test.
What if I had the repeater on, and took my HT's for a ride? That would be an acceptable test also correct?