Does somebody know about Preignition, what frequency?

[frank]

I am trying to sort out if I can change the DSP 2012 for my old (homemade) lasercontroler.

Does anyone now what signal is being presented for the preignition of the laser (RF) output from the DSP 2012?
And is there someone who knows where I can find servodrivers (20W motor) to use with the DSP?

Thanks in advance, Frank