Codec manufacturer Tieline has announced two new MPX codecs – the MPX I and MPX II offer FM multiplex (MPX) codec solutions for real-time network distribution of FM-MPX or MicroMPX (µMPX) signals to transmitter sites.

The MPX I is suited to transmitting a composite STL signal from a single station with return monitoring, while the Tieline MPX II can transport two discrete composite FM-MPX signals from the studio to transmitters with return monitoring. Both units support analogue MPX on BNC, MPX over AES192, and multipoint signal distribution, to deliver a wide range of flexible composite encoder and decoder solutions for different applications.

Both units allow sending of uncompressed FM, or high-quality compressed µMPX at much lower bit-rates. An optional satellite tuner card with MPEG-TS and MPE support can receive DVB-S or DVB-S2 signals.

‘Tieline two new MPX codecs leverage our longstanding expertise in audio encoding to flexibly and reliably distribute composite signals to transmitter sites,’ says APAC & EMEA VP of Sales, Charlie Gawley. ‘By supporting both analog and digital composite MPX signals, broadcasters can transition from analogue to digital exciters over time and maximise the value of their MPX investment.’

Sending transmission-ready FM composite signals from the studio allows broadcasters to maintain audio processing and RDS data insertion at the studio. This promises to significantly reduce capital and operational costs by eliminating processing equipment from transmitter sites, which reduces on-site power consumption, wiring, and site visits for service and support.

Composite MPX-over-IP signals can be easily replicated and distributed using multicast and multi-unicast technologies, and include features like redundant streaming, RIST, FEC, and automated SD card file failover.

The MPX I and MPX II are expected to ship later in 2023.

More: www.tieline.com