Reply To: Question on SM200C frequency sweeping modes

Thank you for the quick response. We were only going to give the user options for start/stop frequency, rbw, and period. Based on that, I think the best thing to do is to follow your recommendation and leave the speed as “auto” and let the user’s parameters drive the speed.

Do you have a recommendation for a safe window type since I am not going to give the user the ability to set it? I see you use flat-top in your example sweep app, but Nuttall in your thz sweep (btw, you spelled Nuttal with only a single ‘t’ in the API). I am leaning towards Nuttal, but I figured I would double check.

This seem like a reasonable set of API calls?

smSetSweepSpeed(this_device, smSweepSpeedAuto);
smSetSweepStartStop(this_device, this_startFrequency, this_stopFrequency);
smSetSweepCoupling(this_device, this_rbw, this_rbw, this_period);
smSetSweepDetector(this_device, smDetectorAverage, smVideoPower);
smSetSweepScale(this_device, smScaleLog);
smSetSweepWindow(this_device, smWindowNutall);
smSetSweepSpurReject(this_device, smFalse);
smSetAttenuator(this_device, -1/*auto*/);
smSetPreselector(this_device, smFalse);
smSetReference(this_device, smReferenceUseExternal);
shStatus = smConfigure(this_device, smModeSweeping);

Thanks again