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4MX Series (25kW to 100kW) - 4MX 25 (D)



27.5 kW AM Transmitter

Designed for the demands of both analog and digital transmission, the 4MX 25 transmitter is based on a patented modulation design developed by BE that packs unparalleled efficiency and features into a small footprint with a price to match. 
Our next-generation 4M Modulation is a Fourier modulation design incorporating zero-voltage switching and modulated RF duty cycle enabling 4MX series transmitters to boast exceptional efficiency specifications. You can also operate the 4MX 25 at a power levels as low as 250 W to meet all your power level needs, day and night. 
As little as one-third the footprint and weight of competing models, the 4MX 25 exceeds expectations for reliability and service accessibility. The unique design directly connects efficient switching power supplies to the power amplifier, entirely skipping the modulator stage. All power amplifiers have their own power supply, producing unparalleled redundancy, thus ensuring the transmitter is on air at maximum power even with multiple failed modules. The power amplifiers are hot-pluggable and can be removed and replaced while the transmitter remains in operation. 
The exciter in the 4MX 25 is DSP-based, providing enhanced audio performance by correcting for any distortion. Fully HD Radio and DRM compatible as delivered from the factory, the 4MX 25 accommodates both current and future versions of HD Radio. The 4MX 25 even provides the flexibility of changing transmission between analog-AM mode and analog-AM-plus-HD-Radio mode on the fly either locally or remotely.

Key Features

  • Patented 4M Modulation design
  • As little as one-third the footprint and weight of competing models
  • Designed for analog AM, HD Radio and DRM
  • Built-in redundancy
  • Hot-pluggable power amplifier modules
  • 15" XGA graphical user interface for diagnostics and operation
  • Diagnostics, status and control available via IP
  • Power factor greater than 0.99
  • Power capability as low as 250 watts


Related products
( Discontinued  - Discontinued )
  4MX Series Solid State AM Transmitter
4MX 50 (D)Discontinued
4MX 100 (D)Discontinued
  Folleto de la Serie 4MX de Transmisores AM
4MX 50 (D)Discontinued
4MX 100 (D)Discontinued

Technical Specifications

Related products
( Discontinued  - Discontinued )
  4MX 25 - Technical Specifications

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Dear BE, We have a number of AM1 and AM2.5 transmitters around the UK. Our spares facilty are having difficulty identifying the frequency power...
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