The Amplifier Research 150A250 is a self-contained broadband RF amplifier engineered for laboratory and test environments requiring high instantaneous bandwidth, stable gain, and moderate power delivery. Built on push-pull MOSFET circuitry, it delivers 150 W minimum output across 100 kHz to 250 MHz while maintaining unconditional stability into any load impedance—no damage, no oscillation, no foldback protection needed. The amplifier accepts input signals as low as 1.0 mW for rated output and provides 52 dB minimum gain with ±1.5 dB flatness across its operating range.
Technical Specifications
• Frequency Range: 100 kHz to 250 MHz
• Output Power: 150 W minimum rated; 155 W minimum @ 3 dB compression; 120 W @ 1 dB compression
• Gain: 52 dB minimum with ±1.5 dB flatness
• Input Level for Rated Output: 1.0 mW maximum
• Input Impedance: 50 Ω, VSWR 1.5:1 maximum
• Mismatch Tolerance: 100% rated power into any load impedance without damage or oscillation
• Primary Power: 90–135/180–270 VAC auto-ranging, 47–63 Hz, single-phase
• Operating Temperature: 5°C to 40°C
• Humidity: 80% maximum up to 31°C, decreasing linearly to 50% at 40°C
• Altitude: Up to 2000 m
• Dimensions: 9.9 in (H) × 19.8 in (W) × 18.1 in (D)
• Weight: 70 lb
– Key Features
• Push-pull MOSFET design minimizes distortion and ensures load-invariant operation
• Type-N (female) connectors for RF input and output
• Digital front-panel display for status and fault indication
• IEEE-488 (GPIB) and RS-232 remote control interfaces
• Integrated power supply with ±10% mains tolerance
– Typical Applications
• RF susceptibility and EMC testing
• Antenna and RF component evaluation
• Watt meter calibration
• Driver amplifier for high-power systems
– Compatibility & Integration
IEEE-488 and RS-232 interfaces enable integration into automated test systems. The amplifier operates within standard laboratory environmental conditions and meets Pollution Degree 2 specifications.
