The Frequency of My Signal Is Not What I Expect

The Frequency of My Signal Is Not What I Expect

Check the Timebase

The signal may be aliased to a lower frequency due to undersampling and decimation when a large timebase is displayed. Decrease the time per division to correct this by zooming in or using the Horizontal Setting. You can also use the Auto Setup function.

Check Bandwidth Filter Setting

By default, the mixed signal oscilloscope (MSO) displays frequencies up to the maximum bandwidth limit of the device. Refer to the NI VirtualBench Specifications for the bandwidth specification for your VirtualBench. Signals with frequencies much lower than the maximum limit may show unwanted high-frequency noise. Set the Bandwidth Limit to attenuate the noise.