Maybe (depends on the rise time of the used amplifier of the Spooky2) you can use the 5th harmonics if you use a frequency of 12.832MHz / 5 = 2.5664 Mhz.
Of course you get a much lower Output power as if you would use the 12.832MHz directly. (But this is not possible as stated before.)
The Spooky2 Plasma should produce a square wave Output, this is why you maybe can do it.
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