Suono Telecom ESVA1K – 1000 Watt FM Transmitter

Overview

Suono Telecom ESVA1K is a compact 1000 W FM broadcast transmitter designed for reliable 24/7 operation in professional regional, commercial and networked FM services. The transmitter combines wideband solid-state MOS-FET technology with an efficient switch-mode power supply to deliver high RF efficiency, reduced heat dissipation and lower operating costs. With its robust 3U rack-mount chassis and intuitive front-panel controls, this 1 kW unit is easy to install, configure and maintain in space-limited transmitter rooms and technical sites.

RF platform and performance

ESVA1K covers the standard 87.5 ÷ 108 MHz FM broadcast band, with 76 ÷ 88 MHz versions available on request to match local spectrum allocation plans. A full solid-state MOS-FET wideband RF stage provides adjustable RF output from 0 to 1000 W at 50 Ω, allowing it to operate either as a stand-alone main FM transmitter or as a powerful driver for higher power amplifier systems. Carefully designed low-pass filtering and synthesized VCO tuning help ensure high spectral purity, with spurious emissions and harmonics kept well within professional FM broadcast limits.

Audio, control and sound quality

The ESVA1K delivers excellent on-air audio thanks to a high-performance FM signal generator offering very low total harmonic distortion, wide 30 Hz ÷ 60 kHz baseband response and an FM signal-to-noise ratio better than 80 dB. It supports mono/MPX operation with dedicated MPX and SCA inputs, along with configurable pre-emphasis (0, 50 or 75 µs) to suit different FM broadcast standards. A microcontroller-based control section with LCD status display, password-protected frequency change and comprehensive metering of forward power, reflected power and modulation level makes day-to-day operation and fault diagnosis straightforward.

Broadcast applications

Suono Telecom ESVA1K is ideal as a main 1 kW FM transmitter for regional broadcasters, high-power community stations and commercial networks that require robust coverage and excellent audio performance. It is equally suitable as a driver or backup unit in multi-kilowatt systems, where its broadband design, dynamic output power fold-back and built-in protections against VSWR, temperature and RF overload help keep services on air even under fault conditions. Forced-air cooling, a wide 110 ÷ 264 VAC mains input range and proven ESVA-series engineering make this transmitter a dependable choice for demanding on-air environments worldwide.

Key technical features

• Frequency range: 87.5 ÷ 108 MHz standard, with 76 ÷ 88 MHz versions available on request.
• RF output power: 0 ÷ 1000 W adjustable at 50 Ω with dynamic fold-back protection.
• RF architecture: full solid-state MOS-FET wideband design with low-pass output filter and synthesized VCO tuning.
• Audio performance: baseband 30 Hz ÷ 60 kHz, low THD and high FM S/N ratio for clean broadcasts.
• Pre-emphasis and inputs: selectable 0/50/75 µs with MPX and SCA inputs on BNC connectors.
• Cooling and mains: forced-air cooling with high-efficiency PSU, 110 ÷ 264 VAC, 47 ÷ 63 Hz input range.
• Mechanical: 3U 19″ rack-mount chassis with front-panel LCD and controls providing clear status and setup information.

Alternative 1 kW FM transmitters

If you are comparing other 1 kW FM transmitters alongside Suono Telecom ESVA1K, you may also want to look at options such as the
Suono Telecom ESVB1K, the
Eurotel ETL1000 and the
OMB EM 1000 DIG PLUS available in our catalogue.
To explore the full range of FM transmitter power levels, features and brands, including this model, visit our main
FM Transmitters category.