Charlie Gawley outlines the key features in Tieline’s MPX I and MPX II codecs. These codecs deliver composite FM multiplex (MPX) codec solutions for real-time network distribution of FM-MPX or compressed MicroMPX (µMPX) signals to transmitter sites. They support analog MPX on BNC, MPX over AES192, and multipoint signal distribution, to deliver a wide range of flexible composite encoder and decoder solutions for unique applications.