0.3 flight time, 1 landing. Not much after takeoff, radio squelch opened again. Rather than fight it, I just turned around and landed. Checked either ignition and even both ignitions off, and the noise is still there. Checked again w/ engine not running - still there. So I don't think it's the ignition or the alternator, which points to the radio itself. Copperstate next week - will need to see if I can borrow a hand-held or something.
