S7HP LW/MW Transmitters

LW/MW (200 kW to 1200 kW) Radio Transmitters

The Thomson S7HP family of high-power, DRM-ready, long- and mediumwave solid-state transmitters provides a solution for all ranges of power and comprises one "all-in-one" power amplifier block or multiple blocks with a simple combining system that does not require the extra complexity of balancing load. Each amplifier block provides up to
400 kW carrier plus 100 percent modulation, using 256 power modules. The power modules are fully interchangeable and do not require any adjustment to cover all LW/MW frequency ranges.

The family is based on a field-proven design combination of advanced digital signal processing and simple and robust architecture. Resulting from our extensive worldwide experience in DRM service implementation, S7HP design is based on a "fully DRM ready" functional breakdown structure. By simply connecting a DRM modulator, members of the S7HP family can be operated in DRM modulation modes with signal on-air optimization.

Key Features

  • Modular family ranges from 200 kW to 1200 kW
  • Digital control unit coordinates signal processing required for translating baseband signal into AM band
  • Direct digital synthesis generates output RF signal with digital precision
  • Digital signal processing for carrier control and audio filtering
  • Digital control for MOSFET switching transistors on RF amplifier modules
  • AES/EBU digital input-compatible with professional DRM front-ends and digital audio equipment

 

PowerAmplifier Block

  • Full accessibility
  • Lowest space requirement
  • Maximum service availability

 

7kW PEP plug-in power module

  • Most powerful
  • Highest efficiency
  • No adjustment