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The award-winning Ecreso FM 3kW is a fully digital medium power FM transmitter for analog FM and is the new flagship product in WorldCast Systems’ Ecreso portfolio. 

Engineered to meet the needs of the most demanding network operators and stations, it combines reliable performance, efficiency, and state-of-the-art innovation into a compact, yet modular 3U chassis design.  

With the Ecreso FM 3kW, broadcasters benefit from built-in redundancy, easy maintenance, a multitude of built-in features and the first patented Artificial Intelligence for FM radio, SmartFM.  

This advanced broadcasting solution is the result of decades of experience and a mission to bring to market the best medium power FM transmitters in terms of total cost of ownership and audio quality.


Current Version: 2.4.0


FM Transmitter
Ecreso FM 3kW Benefits

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  • 60 years of RF Expertise
  • Customer support to accompany you for installation, configuration, maintenance, repairs and on-site field operations
  • Turnkey Solutions or stand alone
  • Project Assistance: site visits, factory acceptance tests, team trainings, installlation support
  • Up to 10-years Warranty
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  • Up to 76% efficiency with planar design and 6th generation MOSFET + SmartFM
  • Many onboard functions: Dynamic RDS Encoder, Digital Stereo Encoder, Audio Backup, MPX Power Limiter, GPIO...
  • High Reliability with HALT, PSA, FMECA, Burn-in...
  • Full control & monitoring with Advanced Measurement Interface, 24h graphical history log, and Expert Maintenance Report, SNMP management
  • Reduced maintenance with hot swappable parts
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Highest Quality
To Listeners

  • Built-in redundancy: Up to 3 PSUs with load-sharing, active redundancy on RF amplification, Passive coupler, oversized coupling loads
  • Direct-to-channel digital modulator: Highest signal quality, built-in broadcast tools control of all parameters
  • 5-Band sound processor
  • Digital MPX over AES
  • Audio backup with silent detect on all program inputs, intelligent automatic auto-switch & recovery, internal player with μSD card

Innovation In Service Of Great Radio

Meidum Power FM Transmitter - Ecreso FM 3kW - Front
Medium Power FM Transmitter - Ecreso FM 3kW - Angle
FM transmitters - Turnkey Solutions & Racks

Turnkey solutions & racks

FM transmitters - MOSFET

6th generation MOSFET & Planar design

FM Transmitter - Web interface

Intuitive web interface

FM transmitters - Power supplies and Fans

Redundant & hot swappable power supplies and fans


Advanced, Built-In Software


A New Paradigm In Energy Savings

SmartFM Compatible


SmartFM - Brings Up To 40% Energy Savings

SmartFM is a sophisticated algorithm, or AI, which enables broadcasters to reduce their energy costs by up to 40% without any compromise on the audio quality and coverage. Ecreso FM 3kW are enhanced with this advanced software technology; when activated, you will be broadcasting from the world's most efficient and environmentally-friendly FM transmitter.




SmartFM Energy savings

Craft Your Own Amazing Sound

5-band sound processor

Built-In 5-Band Sound Processor

The Ecreso FM Transmitter range features an integrated multi-band sound processor! This fully digital sound processor offers the highest signal quality and outstanding reliability as no additional hardware is required*.

You can choose from a wide-band or a multi-band version to achieve the level of processing required at your site and the processor is supplied with a full set of presets for many different formats and requirements.



See Brochure For Technical Specifications



What Happens If...?
A study of the redundancy capabilities
of the Ecreso FM 3kW transmitter

Ecreso 3kW Tech Note

Advanced Solutions To Monitor & Control

ECRESO is accompanied with a range of FM radio monitoring and control solutions 
so users have full control, locally and remotely, on their FM transmitter. 

Ecreso FM Communication package

Communication Package for 
full monitoring & control

Expert Maintenance Reporting Icon

Expert Maintenance Reporting

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Centralized NMS for radio monitoring & control


What People Are Saying


"While I cannot take credit for the purchasing decision, I can tell you the radio I work for made a great choice. The Ecreso 3kW FM transmitter is a complete, compact, 3U by 19-inch rack mount unit. When I mention complete, you will not only have direct-to-channel digital modulator, you can license a flame-throwing 5-band sound processor with your choice of audio presets to match your station's format."

- Stuart Tell, Contract Engineer -
Iowa, USA


We'd love to hear about your project

Contact us for any of your inquiries. Our Sales team is here to assist you with projects, questions on our products, or to find a local distributor.

FOR TECHNICAL SUPPORT, please go to the support page to submit your request. The below form is for new inquiries only.