2-channel FM-MPX over IP codec with short delay and monitoring functions


Professional two-channel MPX over IP encoder / decoder


The MPX-2c is a point to point or point to multipoint MPX codec using IP-based network technologies for real-time distribution of complete FM-MPX ( FM composite signal) to connect your signal generation in the studio directly to the transmitter site. Based on the know-how of FMC01 and customer requirements the MPX-2c offers you a variety of features and opportunities to ease your daily work.


Flexible in application: The codec is designed for broadcasters with professional requirements in signal quality, the monitoring of the distributed signal, and the flexible usage in their network. The MPX-2c has always analogue and digital interfaces and optional it’s possible to decode the MPX signal to L+R audio.

Easy Operation: The MPX-2c saves the sound processing (stereo generation) and RDS generation on the transmitter site and brings this into the studio/playout center. The signal is generated once and can be distributed to various transmitter sites via IP (multichannel). This saves rack space, service, and support on the transmitter site.

Saving bandwidth: A full FM-MPX signal needs approx. 3.5 Mbyte IP data capacity. In addition, we can sample the signal with lower resolution bandwidth. By enabling the µMPX mode, the MPX-2c will be able to reduce the bandwidth starting at 320 kbps.

Pay as you grow: All soft- and hardware components are individually combinable. Please ask for more details.

Transmission robustness: Dual Streaming and Pro-MPEG FEC ensure rock-solid IP transmission or you go beyond with SRT (secure reliable transport). The optional two hot-pluggable power supplies guaranteeing fail-safe operation complete the whole concept perfectly.

Smart management: Configuration set-up via an easy to use web interface for general settings as well as for backup or fall back. For remote control, the codec offers various possibilities – HTTP, FTP, Telnet, NMS, SNMP. Perfect synchronization can be achieved by PTPv2 and latency control.





FM MPX distribution

  • High-quality FM MPX decoding function
  • Dual channel, one channel activated
  • Optional: Activation of the second MPX codec
  • Optional: Activation of the MPX encoder
  • Dual Streaming
    Simultaneous transmission and reception of 2 IP streams and seamless exchange of IP packages in case of failure


  • High-end converter (ADC, DAC) for optimal quality
  • Optional: coder & decoder in the same equipment
  • Optional: fully integrated backup solution with automatic switch over in case of failure
  • Optional: expansion module for output stereo decoder audio or additional copies of decoded MPX signal


  • Full online remote control of all parameters via IP
  • Configuration via web user interface for easy setup
  • Quick view status page for a fast overview
  • SNMP v2c, relays, inputs


  • 100% loss less audio encoding & decoding of MPX audio (mono, stereo) bands and RD(B)S band
  • Pro-MPEG FEC (Forward Error Correction) to reduce bit errors in data stream
  • µMPX


  • Quality parameters via SNMP v2c and relay
  • Optional: RDS monitoring and optional alarm control (PI, PS)
  • Optional: Activation of integrated Stereo Decoder with access to decoded audio via live listening and Icecast

Sync FM

  • Optional: synchronized FM transmission within FM single frequency networks (SFN)



Datasheet for MPX-2c series (PDF, 0,5MB)