DSP PLL Radio ghost box hack New boards to test HD

So it appears there is a few versions of these boards Some Phase locked and muted and some wide open, The difrence is the good ones have the frequency dial on the right hand side and volume on the left, The other versions wont work well for this hack, Simply using a frequency or PWM Signal we can force tune the frequency dial encoder. with speed adjustments. This method works both with a PWM OR Wave frequency generator. So i will be building a few of these with arduino to give a detailed controllable sweep function in forwards and reverse modes. The FM Boards are stereo pre amplified so can drive speakers directly and aux out for Amp rig setups.