We have designed an FPGA based multiple-input multiple-output (MIMO) power line communications (PLC) Channel Emulator in our research lab over the last years. This paper will demonstrate verification and testing results achieved with the emulator. It also presents comparisons between PLC modem performance results at typical channels within the field and their corresponding emulated performances. Furthermore, some steps that were required to optimize the emulation results will be exposed in this paper. Finally, its shown that significant testing of broadband powerline modems is a quite feasible concern.