The Eddystone S7610C is a 10kW FM transmitter known for its highly modular architecture and efficient design. Here are the key features and specifications:
Features:
- Modular Design: Utilizes hot-pluggable Power Amplifier modules, allowing for easy removal and servicing with minimal reduction in output power.
- Efficient Power Supplies: Incorporates hot-pluggable switched mode power supplies (SMPSU) for efficient operation and ease of servicing. These modules are common across the entire 7600 range, reducing spare holding costs.
- N Way RF Power Combining System: Features Eddystone’s patented N way RF power combining system for enhanced performance and reliability.
- Compact and Replaceable Modules: Amplifier and PSU modules are compact and replaceable on air, ensuring minimal downtime during maintenance.
- Compliance: Fully compliant with ETS 300 384 specification for FM transmitters.
- System Flexibility: Easily configurable into a wide range of system architectures to meet specific broadcasting needs.
- Remote Control and Monitoring: Comprehensive remote control and monitoring facilities for efficient operation and maintenance.
- LCD Display: Equipped with an LCD display for easy local monitoring of parameters.
System Overview:
- Drive Input: Input is fed to dual 18-way splitters, providing the PA module input drive.
- Power Amplifiers (E2021): Each E2021 Power amplifier utilizes dual packaged MOSFETs mounted on a substantial heatsink assembly. Internal control and self-protection mechanisms are integrated into each module.
- Combining System: Outputs from the power modules are combined via the N-way combiner before being fed to the output coupler and harmonic filter.
- Cooling: Self-contained redundant cooling fans are mounted on the rear of the transmitter. Ducting options are available, and bespoke cooling systems can be provided for special requirements.
Specifications:
- Power Output: 10kW (Adjustable to -6dB)
- Operating Frequency: 87.5 to 108 MHz
- RF Output Load Impedance: 50 ohm unbalanced
- RF Output Connector: 1-5/8″ EIA
- Maximum VSWR: Able to maintain full power at 1.9:1 before protection cuts in
- Mains Power Supply: Three-phase & neutral 380-440V (Other supply voltages available on request)
- RF Harmonic Output: Better than or equal to –86dBc
- Ambient Temperature Range: 0°C to +55°C at an altitude up to 3000M
- Overall Efficiency: Typically 60%
This transmitter is designed for high-power FM broadcasting applications, offering reliability, efficiency, and ease of maintenance.
