vital information required
 

hello everyone or anyone?

i am doing my final year degree project and need some information on the following

Control and Peripheral Switching Equiptment (CPSE). .Front End Filter (FEF)and. .VHF ground Processor (VGP)

i need info on how they work, the redundancy (back-up ) systems within them and what they do.. .any pointers or websites with the required infor would be grateful appriciated!

thank you