Radio Transmit Troubleshooting Recently updated !This entry was posted in Avionics Electrical on November 20, 2022 by Peter Recently I’ve been firing up all the avionics systems and testing everything that I could. This included testing receive and transmit on both radios and with both headsets. Turns out I can’ transmit on the pilot’s headset. Whoever installed these connections, clearly messed something up. Sure enough, upon inspection, I had reversed two wires. The crazy thing… You can see where I had them correct, and then reversed them. So somehow I had them installed correctly, got confused, reversed the two wires into the wrong position and completed the installation. Regardless, I fixed the connection and all is now working with both radios and both headsets!!