I am using PCI 6221 with SCB-68 and LabView 8.0 and I am sampling signal which frequency is 40kHz. Can I change the cutoff frequency of the filter and how ????
It looks like your PCI-6221 doesn't have any built-in filters for the Analog inputs, but your SCB-68 provides a breadboard for adding additional circuitry. Starting on page 5-7 of the SCB-68 User Manual it walks you through building a lowpass filter and choosing the correct resistor and capacitor types and values. This will allow you to create a lowpass filter with any cutoff frequency you want.
