The Anritsu new ME7780A 48G BERT System is the recognized and established industry leader for its best performance and widest frequency coverage up to 48 Gigabits per second. Its unique design produces high quality waveforms vital for the analysis of high-speed electrical or optical components, modules, and systems for next generation networks. The ME7780A features very low jitter, low-phase-noise, and high sensitivity input up to 48 Gbps so engineers can perform a wide array of complex measurements with high accuracy. It enables designers to characterize system designs, shorten design cycles, and improve their time to market. This BERT system consists of the MP1775A (4-Channel Pulse Pattern Generator) and MP1776A (4-Channel Error Detector) along with the new MP1811A (MUX), MP1812A (DEMUX), and an external signal source. The signal output side consists of a 50G or 65G signal generator (MG3690B Series Synthesizer) for generating the clock signal, a pulse pattern generator (MP1775A) for