The Rohde and Schwarz SR 8100 is a solid-state, low-power FM transmitter for VHF broadcasting from 87.5 MHz to 108 MHz. Available in 100 W to 1 kW configurations, it delivers high-efficiency signal generation through MOSFET power amplifier technology. The transmitter integrates the R&S SU800 digital exciter, which performs all signal processing—including frequency modulation—digitally to meet stringent spurious and spectrum mask requirements while minimizing analog impairments.
– Technical Specifications
• Frequency Range: 87.5 MHz to 108 MHz (VHF)
• Output Power: 100 W to 1 kW (configurable)
• Exciter: R&S SU800 digital synthesizer with D/A conversion for superior signal quality
• Power Amplifier: MOSFET-based topology for high efficiency and durability
• Modulation: Digital frequency modulation with integrated stereo coder
• Audio Interface: AES/EBU (bit-serial) and analog AF input; supports Left/Right, MPX, RDS, and SCA signals
• Cooling: Air-cooled
• Form Factor: Compact 19″ rack mount (2U at 100 W; 4U at 1 kW)
– Key Features
• Digital signal processing eliminates analog impairments from studio to transmitter
• R&S SU800 exciter meets high spurious suppression and spectrum mask compliance
• Integrated power supply and transmitter control unit with multilingual display
• CAN bus internal communication; Ethernet external connectivity
• Remote monitoring via SNMP, web interface, and parallel remote-control interface
• Complete local and remote diagnostics of all transmitter and amplifier parameters
– Typical Applications
• Professional FM broadcast transmission
• Test and measurement environments
• Communication system deployments
• Audio broadcasting with digital and analog source integration
– Compatibility & Integration
The SR 8100 connects to studio equipment via AES/EBU digital or analog audio inputs and integrates with network infrastructure through Ethernet. Remote control and monitoring leverage standard IP protocols and web-based management, enabling straightforward integration into broadcast and transmission facilities.
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