Add to ORKGThis thesis is focused on processing, summary information about PLC commnunication and analyzing present issue of data transfer via powerline grids. Teoretic and technical information about PLC communication, advantages, disadvantages, kinds of PLC communication depending on used frequency ranges and also about used modulation techniques are processed in the first part of the thesis. The second part of thesis is focused on analysis information about choice types of modems and companies, which are oriented on PLC technology. Measurements results of broadband PLC communication are evaluated in the third part of thesis with opportunity to extend and modification it. Laboratory measurement of narrowband PLC communication is processed and focuse...