100 Hertz might work fine in Japan and Europe, but I bet 120 Hertz is the magic note here in the US. 8) Doing this airborne would of course require an 800, 120

100 Hertz might work fine in Japan and Europe, but I bet 120 Hertz is the magic note here in the US. 8) Doing this airborne would of course require an 800, 1200 or even 2400 Hhz tone depending on if the power supply was 2, 3 or 6 phase. /S - yes, it's a joke about DC power supply ripple