If the SDG2042X can be hacked into an SDG2122X to would be a great deal. Do you have a link where I can find updated information about the hacking? IIRC I read something about a telnet port being disabled, and thus prevent hacking.
And is it possible to set one channel to track the frequency, amplitude, and phase of the other channel?
Oh, how loud is the fan? Is it DS1054Z loud?