ECRESO ­FM 5kW / 10kW
Efficient. As Solid as a 1+1. Feature-Packed.


Ecreso FM 5-10kW is a fully digital transmitter for analog FM and is the most powerful flagship product in WorldCast Systems’ Ecreso portfolio. 

Engineered to meet the needs of the most demanding network operators and stations, it combines reliable performance, highest efficiency, and state-of-the-art innovations. Truly revolutionary, Ecreso 5-10kW has a built-in 1+1 redundancy which ensures it stays on-air with minimal or no power loss.

With the Ecreso FM 5-10 kW, broadcasters benefit from reduced maintenance thanks to hot swappable power supplies, power amplifiers and fans, as well as a multitude of onboard features such as SmartFM, an AI technology bringing from 10 to 40% energy cost savings.
This advanced broadcasting solution is the result of decades of experience and a mission to bring to market the best FM transmitters in terms of quality, total cost of ownership, and audio quality.

ECRESO FM 5-10kw pictos

ECRESO FM 5-10kW benefits:

Ecreso FM 3kW Monitoring Expertise


Market-Leading Expertise
60 years of expertise developing RF solutions and deploying several thousands of systems worldwide enables WorldCast Systems to accompany Ecreso FM 5-10kW with a range of services and warranties.

Ecreso FM 3kW Time & Operational Cost Saving


Lowest Operating Costs
Thanks to cutting-edge innovations and an intelligent design, Ecreso FM 5-10kW offers high efficiency, 
reduced consumption and easy maintenance. All-in-all the lowest Total Cost of Ownership.

Ecreso FM 3kW Comprehensive & Scalable Platform

Highest Quality To Listeners
Ecreso FM 5-10kW brings amazing audio to your radio broadcasting thanks to the direct-to-channel digital modulator, 5-band sound processor, and MPX over AES compatibility. It’s 1+1 built-in redundancy also keeps you on-air, at all times.

Market-Leading Expertise

Customer support: Expert technical support team to accompany 
you for installation, configuration, maintenance, repairs, and on-site 
field operations

Turnkey solutions: Ecreso FM 5-10kW is available as a stand alone 
unit or as a system, including peripherals and rack integrations

Project assistance: Site visits, factory acceptance tests, 
team trainings, installation support 

Up to 10-year warranty

Lowest Operating Costs

Up to 76% efficiency thanks to state-of-the-art technology such 
as 6th generation MOSFET and Planar Design + SmartFM

Many onboard functions: Sound Processor, Dynamic RDS Encoder, Digital Stereo Encoder, Audio Backup, MPX Power Limiter, GPIO...

High reliability: The product undergoes Highly Accelerated Life Tests (HALT), Parts Stress Analysis (PSA), Failure Mode Effects and Criticality Analysis (FMECA), burn-in...

Simple control and monitoring thanks to a user-friendly web interface, Advanced Measurement Interface (AMI), 24h graphical history log and Expert Maintenance Reporting (EMR)

Full SNMP management

  • → Up to 4 SNMP managers
  • → Control and monitor all parameters
  • → Alarms by SNMP traps and e-mails

Reduced maintenance with hot-swappable power supplies and fans

Customized air flow configurations

Highest Quality to Listeners

Built-in 1+1 level of redundancy that keeps you on-air

Direct-to-channel digital modulator
→ Highest signal quality / Perfect audio fidelity
→ Several built-in broadcast tools
→ Control of all signal parameters 

5-band sound processor

Digital MPX over AES

Audio Backup
→ Silence detect on all program inputs
→ Intelligent automatic auto-switch and recovery
→ Internal player from µSD card

Ecreso FM 3kW Turnkey Solutions & Rack Integrations

Turnkey Solutions & Rack Integrations

Ecreso FM 3kW 6th Generation MOSFET & Planar Design

6th Generation MOSFET & Planar Design

Ecreso FM 3kW Intuitive web interface

Intuitive web interface

Ecreso FM 3kW Advanced Measurement Interface (AMI)

Advanced Measurement Interface (AMI)

Ecreso FM 10kW Redundant & Hot-swappable Power Supplies and Fans

Redundant & Hot-swappable Power Supplies and Fans



Unrivaled RF output recovery scenarios:

Figures given in this chapter may vary depending on the transmitter power level and version

Ecreso FM 10kW

5 Band Sound Processor

Craft Your Own Amazing Sound 

  • Hosted in direct-to-frequency digital modulator
  • Highest quality processing from audio input to RF output
  • Powerful DSP-based processing
  • Complete 5-band architecture
  • Factory presets for all formats
  • Easy to fine-tune through intuitive Graphical User Interface
  • Real-time meters at each stage
  • No additional hardware: maximum reliability, no maintenance
  • MPX Power Limiter (ITU 412)
  • Wideband sound processor comes standard; 5-Band optional

Read more about 5 Band Sound Processor

logo Smart FM

SmartFM is a worldwide patented technology for FM transmitters which revolutionizes FM radio broadcasting and brings massive benefits to broadcasters, radios, and their audience of listeners.

for the most sensitive program content

SMART FMLowers energy costs by 10 to 40% thanks to electricity savings and reduced cooling LOWERS ENERGY COSTS BY 10 TO 40%
thanks to electricity savings and reduced cooling 

for a cleaner, more sustainable environment

Learn more about SmartFM  

Ecreso offers up to 10 years' WARRANTY

WorldCast Systems offers a standard warranty of 3 years on all our FM transmitters and up to TEN YEARS' Warranty on our range of compact FM transmitters and new ECRESO FM 5kW/10kW for a small additional charge.

No other FM Transmitter Manufacturer even comes close to that commitment or confidence! We can offer the 10 Year Warranty with confidence thanks to:

  • Our exceptional design quality
  • The outstanding efficiency of our transmitters
  • Advanced diagnostics capabilities
Ecreso up to 10 year warranty

Be Proactive with Expert Maintenance Reporting

EMR is a proactive service available on ECRESO FM Transmitters. It sends the user regular reports on the status of key parameters such as temperatures, currents and voltages, plus information on the performance and lifespan of components such as the fan and power supply of the transmitter.

With detailed logging and trend analysis, Expert Maintenance Reporting can identify slow-burning problems and issue warnings well in advance to allow for corrective action to be taken.  A map-based display of current statuses and detailed, user-friendly reports and graphs can be accessed around the clock in the EMR user page.

Learn more about

Advanced Communication Pack

Connect with WorldCast Manager

The WorldCast Manager  simplifies the management of all SNMP-enabled devices in a network, providing real-time status, historical data and visualization of multiple devices from a single screen. The intuitive and simple-to-use interface shows all devices located at your site(s) displaying product information, alerting you to any alarms and providing one-click access to the unit’s web-based control interface.

The WorldCast Manager is compatible with all WorldCast Systems’ equipment as well as SNMP devices from ANY manufacturer.

logo WorldCast Manager

Learn more about
WorldCast Manager

user report

User report

«Following our extensive laboratory tests as well as experience with WorldCast’s ECRESO transmitters in the field, we felt it was clear that none of the other alternative manufacturers’ systems came close.…When it comes to FM transmitters WorldCast is, in our opinion, undisputed leader in the European market.» 
Michael Radomski UPLINK CEO, Germany

user report

User report

“Imagine if we could offer our listeners a sophisticated listening experience which delivered quality, space, transparency and avoided listener fatigue. Imagine if we could offer a sound that was simply a joy to listen to.”


Current Version: 2.0

See all the specifications in the brochure.



  • ECRESO - the most trusted range of FM Transmitters

  • What makes the ECRESO FM 10kW as solid as a 1+1 FM Transmitter? (updated 2017)

  • Guided Tour of the Ecreso FM 10kW - Exciter & Control

  • Guided Tour of the Ecreso FM 10kW - Power Supplies

  • Guided Tour of the Ecreso FM 10kW - Passive Coupler

  • Guided Tour of the Ecreso FM 10kW - Cooling

  • Guided Tour of the Ecreso FM 10kW - Power Amplifiers


  • New ECRESO FM 10kW Transmitter at NAB 2016

  • ECRESO FM 10kW at IBC 2017


  • Ecreso FM передатчики –удачное решение для каждого вещателя!



  • ECRESO FM 5 kW / 10 kW

    Published on Sep 2, 2019
  • Expert Maintenance Reporting

    Published on Jun 13, 2016
  • Ecreso FM N+1

    Published on Feb 15, 2017
  • Ecreso Antennas

    Published on Sep 30, 2019

Tech Notes

  • Maximizing Transmitter Efficiency: A Study of the Ecreso FM 10kW

    Published on Jul 28, 2017
  • Maximizing Transmitter Efficiency: A Study of the Ecreso FM 5kW

    Published on Jul 3, 2019
  • What Happens if…? A Study of the Redundancy Capabilities of the Ecreso FM 10kW Transmitter

    Published on Feb 11, 2019
  • How intelligent transmitter design can deliver 1+1 levels of performance - ECRESO FM 10kW Transmitter

    Published on Jul 3, 2019
  • What Happens if…? A Study of the Redundancy Capabilities of the Ecreso FM 5kW Transmitter

    Published on Dec 1, 2017
  • How intelligent transmitter design can deliver 1+1 levels of performance - ECRESO FM 5kW Transmitter

    Published on Jan 13, 2017

Quick Start Guides

  • ECRESO FM 5kW / 10kW - Quick Start

    Published on Mar 15, 2019
  • ECRESO FM 5kW / 10kW - Unpacking and assembling

    Published on Feb 13, 2018


  • ECRESO FM 5kW / 10kW - Manual

    Published on Mar 15, 2019

Sound processor

  • Factory presets for built-in Sound Processor

    Published on Sep 6, 2017


  • WorldCast Systems Overview

    Published on Oct 1, 2019

Press Kit

  • WorldCast Systems Logo - Press Kit

    Published on Sep 16, 2019
  • ECRESO FM 5kW / 10kW transmitter - Press Kit

    Published on Feb 16, 2017