Reply To: Queued Sweep Bug?

Thanks Andrew.

I do have to say that with SM200C’s, the difference in speed between Queued Sweeps and non-queued is basically imperceptible in our application. It’s very very response non-queued…I’ll be able to test how the SM200B’s hold up doing the same. If I remember right the non-queued was significantly slower.

Here’s some of the various code bits for how we’re configuring the SignalHound.

sm_api.smSetSweepSpeed(handle, SmSweepSpeed.smSweepSpeedFast);
CurrentStatus = sm_api.smSetSweepCoupling(handle, 125.0e3, 125.0e3, 0.0001); //Gives a 3.1kHz scan, 138us blanking (similar spectrum sweep time, about 50% duty cycle).
sm_api.smSetSweepDetector(handle, SmDetector.smDetectorAverage, SmVideoUnits.smVideoLog);

sm_api.smSetSweepWindow(handle, SmWindowType.smWindowNutall);
sm_api.smSetSweepSpurReject(handle, SmBool.smFalse);
sm_api.smSetPreselector(handle, SmBool.smFalse);

//GPIO configuration
int gpiosteps = 2;
sm_api.SmGPIOStep[] Steps = new sm_api.SmGPIOStep[gpiosteps];

Steps[0].freq = 2.2e9;
Steps[1].freq = 2.38e9;
Steps[0].mask = 0x00;
Steps[1].mask = 0x0F;

sm_api.smSetGPIOState(handle, SmGPIOState.smGPIOStateOutput, SmGPIOState.smGPIOStateOutput);