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« on: November 20, 2016, 12:06:28 pm »
Thanks for the suggestions. I have made some progress but find myself, once again, wrestling with the mysteries of audio integration and hoping someone's advice can help me out.
I soldered up a resistive mixer & ebay amp which made my 3 audio devices nicely audible on a test flight during which I only monitored the VHF com. (There is a faint ticking noise when the iPad is charging)
This week I flew again & discovered that, when transmitting, my microphone sounds noisy & distorted (to me & also atc). De-powering the amp cures the problem.
Amplifier output goes to the intercom aux channel, not the comm, but of course the comm output does also go to the intercom.
The new problem only occurs when transmitting.
I will try reducing the amp gain & see if that helps but am otherwise unsure how to proceed.
Any advice most welcome.
Roger