The background noise is “too high”

If you have background noise present that is higher than a ‘normal’ background noise situation, you may still measure STI. To do this you can increase the duration of the measurement.

To do this, go to Measurement->Settings… and in the total duration setting, type in 30 seconds as shown below.

If you have a lot of extra background noise we also recommend that you select Single Sweep instead of MLS and make sure that the Emphasis is set to None. To do this, go to Measurement->Settings… and make sure it is set as shown below.