I implemented basic bandpass filter using [Scipy resource][1]. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error 

> ValueError: Digital filter critical frequencies must be $0 \le \omega_n \le 1$

which clearly makes sense.

**Example:**

 - Centre frequency: $100\textrm{ MHz}$
 - Sampling frequency: $5\textrm{ MHz}$
 - Highcut: $102\textrm{ MHz}$

Clearly (highcut/nyq) > 1 

  [1]: http://scipy.github.io/old-wiki/pages/Cookbook/ButterworthBandpass