Python: Iir Filter Response

This is related to this post but is a question in its own right: Sampling at 40MHz, I have created a narrow pass band IIR filter which has a center frequency of 1MHz and a BW of 20

Solution 1:

Maybe the scipy.signal.freqz function can help you here?

http://docs.scipy.org/doc/scipy-0.13.0/reference/generated/scipy.signal.freqz.html