Group: Rohde & Schwarz
Catalog excerpts
Broadcast & Media R&S®THR9 Liquid-Cooled FM Transmitter Family Highest efficiency, smallest footprint
Open the catalog to page 1R&S®THR9 Liquid-Cooled FM Transmitter Family At a glance The R&S®THR9 high-power FM transmitter family makes terrestrial broadcasting of audio broadcast signals extremely efficient and also saves space. These high-power transmitters feature an energy efficiency of up to 75 %. Liquid cooling and the integration of multiple transmitters in a single rack minimize space requirements. Audio broadcast network operators benefit from extremely low energy costs, maximum robustness and minimum maintenance expenses over the entire system lifetime. The liquid-cooled transmitters deliver FM output power...
Open the catalog to page 2R&S®THR9 Liquid-Cooled FM Transmitter Family Benefits and key features Minimal footprint: multiple transmitters in a single rack ❙ MultiTX systems with up to four transmitters per rack ❙ Integration of an N+1 system in one rack ❙ Intuitive operation of MultiTX systems ▷ page 5 Field-proven liquid cooling system for low service costs ❙ Fully redundant liquid cooling system ❙ Pump and heat exchanger perfectly matched to transmitter ❙ Easy installation and service ▷ page 7 Superior efficiency for minimal energy costs ❙ Maximum efficiency due to unique system design ❙ Innovative amplifier with...
Open the catalog to page 3Model overview R&S®THR9 transmitter family Number of R&S®PHR901 amplifiers Output power for analog standards FM audio broadcasting Output power (RMS) for digital standards 1 HD Radio™ (–20 dB injection level) HD Radio™ (–14 dB injection level) HD Radio™ (–10 dB injection level) Number of transmitters per rack with MultiTX N+1 configuration per rack with MultiTX The values correspond to the output power of the analog signal part. The output power of the digital signal part is defined by the injection level. The integration versatility of the R&S®THR9 transmitter family ranges from single...
Open the catalog to page 4Minimal footprint: multiple transmitters in a single rack MultiTX systems with up to four single transmitters per rack Previously, multitransmitter systems in a single rack were not available for high-power FM transmitters. Now, Rohde & Schwarz has implemented the MultiTX system concept in the R&S®THR9 high-power transmitter family for audio broadcasting in band II. R&S®THR9 multitransmitter systems are available with different output powers for analog and digital mode. This approach saves the operator real money because up to four 10 kW transmitters can be installed in one rack. MultiTX...
Open the catalog to page 5Integration of an N+1 system in one rack Intuitive operation of MultiTX systems Depending on the redundancy requirements, the transmitters can be configured with single drive or dual drive. N+1 configurations can also be implemented in a single rack. Each R&S®THR9 is equipped with a status display on the front panel, where the transmitter status can be read off at any time. The buttons on the front panel make it quick and easy to switch from remote to local mode and to switch the transmitter on and off. The innovative design concept boasts the compactness of entire N+1 transmitter systems....
Open the catalog to page 6Field-proven liquid cooling system for low service costs Fully redundant liquid cooling system Rohde & Schwarz is the first to use liquid cooling for band II high-power transmitters. This cooling concept is already used with TV transmitters and has proven to have many advantages over air-cooled transmitter systems that often require significant construction work and infrastructure changes. The use of liquid cooling for the high output powers of the R&S®THR9 product family simplifies installation, minimizes space requirements and ensures low-noise operation. The cooling system contains two...
Open the catalog to page 7Pump and heat exchanger perfectly matched to transmitter The cooling system of the R&S®THR9 FM transmitter family is equipped with efficient, field-proven components for different output powers. The cooling system is configured according to network operator requirements, the system configuration and the number of amplifiers. The cooling configuration for single transmitters up to 20 kW comprises two pump modules integrated into the rack. For output powers of more than 20 kW and MultiTX systems, a compact pump unit is used that can also be integrated into the rack. Pump modules in active...
Open the catalog to page 8Easy installation and service Installing or replacing an air-cooled audio broadcast transmitter often requires substantial construction work. In many cases, it is also necessary to install space-consuming air ducts, additional fans or even a complex air mixing chamber. The liquid cooling concept makes it possible to achieve space savings of approx. 40 % at the transmitter site because no air cooling installations are needed – only cooling hoses have to be installed. The cooling concept of the R&S®THR9 FM transmitter family saves a considerable amount of space, even for single transmitters....
Open the catalog to page 9Superior efficiency for minimal energy costs Maximum efficiency due to unique system design The R&S®THR9 transmitter family leads the market for FM transmitters, attaining efficiency values of up to 75 %. This level of performance is the result of constant innovation at Rohde & Schwarz in the development of solid-state, liquidcooled transmitters and the pioneering implementation of the MultiTX concept. The R&S®THR9 has been designed with superior efficiency and maximum reliability in mind. The power combiner and RF rigid line exhibit minimum attenuation. Together with the other components,...
Open the catalog to page 10Efficient liquid cooling system The introduction of the liquid cooling system for FM is another key factor in the overall efficiency of the system. In particular, large air-cooled systems with multiple transmitters often require very complex cooling systems with air mixing chambers, and the additional cooling units and fans have a significant impact on overall energy consumption. The use of a centralized liquid cooling system considerably reduces the overall energy costs. The individual components of the liquid cooling system are optimized to save energy. The pumps consume less power since...
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