Broadcast Electronics AM 6A – 6 kW Solid-State AM Transmitter

Description

The Broadcast Electronics AM 6A is a professional solid-state AM transmitter delivering 6 kW of reliable medium wave broadcast power with industry-leading efficiency and audio performance. Operating across the 522-1705 kHz AM broadcast band with 50-ohm impedance and VSWR tolerance up to 1.5:1, the transmitter achieves 82% or better AC-to-RF efficiency at rated carrier power, significantly reducing operational electricity costs compared to older tube or lower-efficiency solid-state designs.

The Broadcast Electronics AM 6A employs patented Class E RF amplifier modules with integrated pulse-width modulation technology, providing THD+Noise below 0.8% from 20 Hz to 10 kHz and frequency response within ±0.5 dB across the same range. The transmitter operates at five user-selectable power levels from 25W to 6.6kW, allowing a single unit to handle both daytime and nighttime power requirements without performance compromise. Hot-pluggable front-access RF modules enable on-air servicing without taking the transmitter offline, while multiple independently regulated power supplies ensure uncompromised redundancy and consistent audio quality at all power levels.

The AM 6A includes front panel modulation metering with LCD display showing forward power, reflected power, and left/right modulation levels in real time. Remote monitoring and control is provided via HTML5 browser-based GUI accessible through integrated RJ-45 network connectivity, with comprehensive event logging storing the 500 most recent transmitter activities. The unit supports HD Radio and DRM+ digital operation when paired with an external signal generator.

• Output power: 25W to 6.6kW (five user-defined levels)
• Frequency range: 522-1705 kHz (9 kHz or 10 kHz channel spacing)
• Impedance: 50 ohms
• Efficiency: 82% or better AC-to-RF at rated carrier
• VSWR: Nominal 1.5:1 at full power with automatic foldback protection
• THD+Noise: <0.8% (20 Hz-10 kHz at rated power)
• Frequency response: ±0.5 dB (20 Hz-10 kHz)
• Modulation capability: >145% peak positive
• Hot-pluggable Class E RF modules with front access
• HD Radio and DRM+ compatible
• HTML5 browser-based remote control via IP network
• Dimensions: 69.3 x 94.0 x 186.7 cm (27.3″ W x 37.0″ D x 73.5″ H)
• Weight: 200 kg (442 lbs)
• Power input: 196-252 VAC three-phase or single-phase, 50/60 Hz

The Broadcast Electronics AM 6A is ideal for medium-power AM broadcast stations requiring high efficiency, reliability, and flexibility. For more professional broadcast transmission solutions, browse the Broadcast Electronics range and explore related AM Audio Processors for radio broadcast applications.