Peter Williams

Thank you Percy for getting back to me. "So really, some one still having and attempting to usie the very first and now historic generation of Signal Ranger "SR-STD or ST-SP2"?" Yes, and I still wear bell bottom jeans too! Yes, I am aware of the 2 volts limit on this device. I ran the sr_spm_control.py script and was able to get the offsets to appear on OUT1 and OUT2 (SR panel labels used here) so some progress. However, when I try a scan i get no scan signals on OUT4 or OUT5 and the "tip" does not...

So, getting back to this after a hiatus in administration... Made good progress - can run gxsm and can get the green light on my SR-STD. Did some testing 1) can change the bias voltage output 2) connect bias output to tunneling input and by changing the bias I can get the Zs output to swing from one extreme to the other 3) changing feedback parameters alters rates at which Zs responds Problem comes when I try a scan When i put a scann offset in either X or Y, the output voltage on Xs or Ys respectively...