Hi all, 1. The problem statement, all variables and given/known data http://imgur.com/kqZK1Vv This is the loop gain (A.F.) of unity feedback system. I need to extract DC Gain Bandwidth GBW (is GBW Gain Bandwith ?) f unity (I suppose this is unity frequency) Phase Margin Gain Margin What is the optimal PM and f2/GBW for time and frequency domain applications? 2. Relevant equations Don't know => this is not really homework as such, plus in the books I got about electrical engineering not much is said about stability and feedback... 3. The attempt at a solution U guys don't need to solve this for me, What I want is instructions how I can solve it, since I truly have no material about this topic, then I shall try and present it, and you guys can help me further Kind Regards.