Indosiar, one of Indonesia's top three broadcasters, has ordered six new Thomson Inductive Output Tube (IOT) high-power transmission systems for its national television network.

The transmitters replace Indosiar's existing Thomson transmitters, which have been in operation for 17 years, and they will be deployed in Bandung, Makassar, Denpasar, Medan, Semarang, and Yogyakarta during 2011 and 2012.

Established in 1994, Jakarta-based Indosiar is available as a free-to-air or subscription channel throughout Malaysia and in other countries in the Asia-Pacific region including Singapore, Thailand, and the Philippines.

"Our long-term relationship with Thomson Broadcast has been a happy one because of the superb reliability of the Thomson systems," said Tandio Santoso, technical director, Indosiar.

"These new IOT transmitters will provide the robust performance we have grown accustomed to, together with new features that will allow us to further develop our services."

Thomson is supplying traditional IOT amplifiers based on the industry-leading DCX Millennium series. The 80-kW transmitters for Indosiar will operate in common mode analog PAL B/G using Thomson's Siriana analogue exciters with digital signal processing (DSP). The Thomson Siriana DSP automatically computes the RF signal correction necessary for the transmitter system, yielding unparalleled output signal quality and RF performance.

The transmitters will be configured with dual drive exciters and 2x40 kW redundant High Power Amplifier (HPA) technology for on-air reliability. They will be fully compatible with Indonesia's 380 VAC mains power system, eliminating external power transformers.