Suono Telecom RDST300 – RDS Encoder

Suono Telecom RDST300 RDS Encoder provides a compact, standards-compliant RDS coding solution for FM broadcasters, adding program service data, radiotext and identification codes to the multiplex signal.

Suono Telecom RDST300 RDS Encoder provides a compact, standards-compliant RDS coding solution for FM broadcasters, adding program service data, radiotext and identification codes to the multiplex signal.

Overview – Suono Telecom RDST300 RDS Encoder

The Suono Telecom RDST300 RDS Encoder is designed to generate a full Radio Data System subcarrier for FM broadcast chains, conforming to EBU RDS and CENELEC specifications to ensure compatibility with consumer receivers. Compact 1U construction and front-panel status indication make the Suono Telecom RDST300 RDS Encoder straightforward to integrate into existing racks, whether at the studio, processor location or transmitter site. By centralising RDS coding in a dedicated unit, engineers can maintain consistent service identifiers, program names and radiotext messaging across the whole FM network.

RF performance and protection

The RDST300 generates an RDS subcarrier at 57 kHz with precise level control so engineers can set the injection to the recommended percentage of the composite MPX signal, avoiding over-modulation while maintaining robust decoding in fringe areas. High spectral purity and phase-locked synthesis minimise interference to the stereo pilot and audio, ensuring clean FM deviation when the RDS output is combined with the main MPX feed. Input and output connectors are arranged for easy loop-through of the existing MPX signal, with internal bypass capability allowing service continuity if RDS coding needs to be taken out of circuit for maintenance.

Audio/MPX and applications

Suono Telecom RDST300 RDS Encoder accepts MPX or pilot reference signals to synchronise the RDS subcarrier with the stereo encoder, preserving correct phase relationships and reliable decoding in receivers. Configuration via serial or remote software allows broadcasters to program PS, PI, AF, CT, PTY, TP and TA, as well as optional radiotext and dynamic data linked to automation systems, supporting branding and traffic messaging strategies. Typical applications for the Suono Telecom RDST300 include upgrading existing FM transmitters with modern RDS services, standardising identifiers across multi-transmitter networks and adding dynamic text capabilities to match current listener expectations.

Alternatives

For installations requiring different feature sets or integration options, broadcasters can also consider RDS encoders such as the Audemat RDS Encoder, which offers advanced spectral purity and digital MPX-over-AES capability for fully digital chains.

Another option is compact multi-service RDS encoders like Kvarta RDS Encoder models, providing dynamic PS, RT+, SNMP and extended UECP control suitable for complex automation environments.

Where encoder selection is still open, engineers can review the wider RDS Encoders category to compare Suono Telecom RDST300 with other RDS solutions covering different budgets and feature levels.