First of all excuse me for asking a seemingly vague question. But i am going nowhere in the problem i am trying to solve.
I am working on a powerline communication system where i need to upconvert in 28-56Mhz range and later downconvert it to 0-28Mhz so that it works in the coupler range.So i need to design a band pass filter in 28-56Mhz and a low pass filter in the 0-28Mhz range. I need to design an analog filter for the same. I have no experience of filter design. I have been looking online for resources but wherever i go there is an explanation on chebyshev, butterworth and elliptic filters.Then you have 1st order,2nd order and higher order filters equations. My problem is from all this i am unable to decide which type of filter to use and what order to use. So i need to understand practical design constraints and examples of how to design given certain constraints and then boiling down to a solution. So could anybody help me in how to approach the filter design problem and suggest either examples or resources to go forward.