Eddystone S7605 is a 5kW modular FM transmitter using hot-pluggable 300W amplifier and switched-mode power supply modules with N-way RF combining to deliver efficient, serviceable high power FM broadcast output.
$ 30,144.82
Eddystone S7605 5kW FM transmitter is a modular high power platform designed for continuous professional FM broadcast service up to 5kW RF output.
Compact amplifier and power supply modules can be replaced while on air, so engineers only see a small reduction in output power during maintenance.
The design meets ETS 300 384 specifications and supports many system layouts, including combined systems where higher powers are required.
The drive input feeds an internal 19-way splitter that delivers RF drive to nineteen E2021 power amplifier modules.
Each module uses dual packaged MOSFET devices mounted on substantial heatsinks to improve cooling and RF stability.
Outputs from the modules are combined in an N-way RF power combiner and then pass through the output coupler and harmonic filter to maintain excellent spectral purity and low reflected power.
PA and SMPSU modules are shared across the 7600 series from 500W to 20kW, helping networks reduce spare part holdings and standardise maintenance.
Each E2021 amplifier module provides its own control and protection against reverse power, excess current and over‑temperature.
On-board microprocessors monitor operating conditions and send key data to the E2023 transmitter controller.
The front-panel backlit LCD shows forward and reverse power, supply status, module alarms and other operating parameters in a clear format.
Remote control and monitoring interfaces allow integration with site control systems for status reporting, alarms and power management.
Eddystone S7605 delivers up to 5kW RF output that can be reduced by 6 dB across the 87.5–108 MHz FM broadcast band into a 50 ohm unbalanced load, using a 1–5/8 inch EIA RF output connector as standard.
The transmitter maintains full power at load VSWR levels up to 1.9:1 before protection circuits act to reduce output and safeguard the RF chain.
Three-phase and neutral 380–440 V AC mains input is standard, with other supply voltages available on request, and overall efficiency is typically around 60 percent from AC input to RF output.
These capabilities make Eddystone S7605 a strong choice for regional and national broadcasters who need modular, serviceable high power FM transmission with robust protection and controlled operating costs.
