300 W FM Amplifier – Ready Drop-In Solution for FM Broadcast Modernization

Designed for FM broadcasting applications, this FM Amplifier stands out with high gain, wideband performance, and reliable operation. It delivers efficient power amplification across the 88–108 MHz range and ensures long-term stable use with its integrated heatsink and cooling system.

With a +7 dBm modulator output, the amplifier can deliver up to 300 W output power, making it a ready drop-in replacement solution for modernizing older FM transmitters that use inefficient MOSFET transistors.

Specifications:

• Gain: 47 dB
• Input Power: 7 dBm
• Supply Voltage: 48 V
• Bandwidth: 88–108 MHz
• Filter: Integrated directional coupler (with DC outputs for forward power and reflected power measurements)
• Heatsink: Included
• Enclosure: Feed-throughs mounted for transistor supply voltage, forward output power, and reflected power measurements
• Input: BNC female
• Output: N female
• RF Monitor: SMA female
• Temperature Sensor: Mounted on the heatsink. Powered with 24 V supply. Provides 10 mV/°C output corresponding to temperature changes.
• Fan: 24 VDC fan mounted on the enclosure for reliable cooling

Applications:

• FM broadcast transmitters
• Modernization projects for legacy FM transmitters (efficiency and power upgrade)

Advantages:

This amplifier provides high efficiency and low distortion, ensuring reliable power amplification in FM broadcast systems. Its robust design, integrated cooling solution, and ready-to-use drop-in configuration make it suitable for long-lasting, uninterrupted operation and straightforward integration into modernization projects.

Important Notice:

Pallet amplifiers are sensitive devices. If you lack sufficient experience, consider a fully assembled product instead.
Damage may occur due to:

• Excessive drive power
• Over-voltage supply
• Inadequate cooling or fan usage
• Operating without a proper load

For this reason, no warranty is provided for pallet amplifiers. However, each unit is thoroughly tested and guaranteed to be 100% operational at the time of delivery.