Amplifier Research 50A15

The Amplifier Research 50A15 is a solid-state, air-cooled broadband RF power amplifier engineered for EMC testing, radiated immunity assessment, and laboratory applications requiring instantaneous bandwidth and high gain. Operating across 10 kHz to 15 MHz with 50 W minimum output power, this amplifier delivers ±1.0 dB flatness and low harmonic distortion into 50 Ω nominal loads.

Technical Specifications

• Frequency Range: 10 kHz to 15 MHz


• Output Power: Minimum 50 W


• Output Flatness: ±1.0 dB


• Output Impedance: 50 Ω nominal


• Harmonic Distortion: Low


• Input Connectors: Type BNC, female


• Output Connectors: Type BNC, female


• Primary Power: 115/230 VAC, 50/60 Hz


• Operating Temperature: 5°C to 40°C


• Operating Humidity: Maximum 80% RH at 31°C; 50% RH at 40°C


• Operating Altitude: Up to 2000 m


• Dimensions: 20.3 × 16.5 × 36.8 cm


• Weight: 9 kg

Key Features

• Adjustable high gain with RF input leveling circuit protecting against overdrive above 0 dBm


• Unconditional stability - operates without damage or oscillation across any load impedance at 100% rated power


• Dual control interfaces: IEEE-488 (GPIB) and RS-232 for local and remote operation


• Over-temperature protection with automatic DC removal to RF stages on thermal fault


• RF output level protection implemented


• Benchtop cabinet design; removable for equipment rack mounting


• Air-cooled architecture for continuous operation

Typical Applications

• EMC and radiated immunity testing


• Driver amplifier for wireless and communication component evaluation


• Multi-band test instrument covering CDMA, W-CDMA, TDMA, and GSM systems


• Laboratory RF measurement and characterization

Compatibility & Integration The 50A15 interfaces via industry-standard BNC connectors and supports GPIB and RS-232 remote control, enabling integration into automated test systems and laboratory environments requiring programmable RF stimulus across the 10 kHz–15 MHz band.