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- Dec 5, 2010
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GeorgeC
We tried a DC portable PTT in the right seat yesterday, but when it was plugged in, the intercom (GTR 225) didn't work on that side. I could hear myself, my son could hear me, but I couldn't hear him. I need to try the left seat jacks next time. Both of us have Zulu 3's. Any thoughts on what would cause this?