How to Calculate Energy and Power from Milky Way's Radio Emissions?

[mkitchen]

First of all, new to the forums, so HELLO!
I am currently working on a project and cannot catch a break on what I need to be looking for. The project consists of calibrating antennas based on the radio noise from the Milky Way. We would like to point the antenna at the center of the milky way in order to calibrate based on theoretical (calculated) results. Anyone know how to calculate the energy,power, etc. from radio light emitted from the center of the Milky Way?

 

[nicksauce]

Perhaps a paper like this might be helpful to read: http://arxiv.org/abs/1001.4555