Amplifier Research 300A100

The Amplifier Research 300A100 is a solid-state broadband amplifier delivering 300 watts CW linear power output across 10 kHz to 100 MHz instantaneously. Operating with less than 1.0 dB gain compression and a minimum 55.5 dB gain, this amplifier maintains ±1.5 dB flatness (±0.5 dB with internal leveling) across its full frequency range. The unit accepts 1.0 milliwatt maximum input to achieve rated output.

Technical Specifications

• CW linear: 300 watts minimum (less than 1.0 dB gain compression)


• CW saturated: 350 watts minimum


• @ 1 dB compression: Minimum 75 watts (nominal 100 watts)


• @ 3 dB compression: Minimum 100 watts (nominal 130 watts)


• Harmonic distortion: −20 dBc maximum at 300 watts Frequency & Gain


• Operating range: 10 kHz to 100 MHz instantaneously


• Gain: 55.5 dB minimum (at maximum setting)


• Gain adjustment: 18 dB minimum continuous range


• Flatness: ±1.5 dB maximum; ±0.5 dB with internal leveling Impedance & Mismatch


• Input: 50 ohms, VSWR 1.5:1 maximum


• Output: 50 ohms, VSWR 2.5:1 maximum


• Operates without damage or oscillation with any magnitude and phase of source and load impedance Linearity & Dynamic Range


• Third order intercept point: 61 dBm typical


• Modulation capability: Reproduces AM, FM, and pulse modulation on input signal Control & Monitoring


• RF power meter: 0–400 watts full scale


• Automatic level control: Internal/external with front panel threshold control


• Pulse modulation input: BNC female


• Detected RF output: BNC female


• Remote control: 25-pin subminiature D connector Electrical & Physical


• Primary power: 100/110/120/200/208/220/240 ±5% VAC, 50/60 Hz, single phase


• Maximum consumption: 2000 watts


• Dimensions: 50.3 × 42.7 × 55.1 cm


• Cooling: Forced air with self-contained fans

Key Features

• Solid-state push-pull architecture


• Instantaneous frequency coverage 10 kHz to 100 MHz


• BNC input, Type N output connectors


• Integrated RF power metering and gain adjustment


• Built-in monitoring and protection circuits


• Front panel and remote control interfaces

Typical Applications

• Electromagnetic compatibility (EMC) testing


• General laboratory amplification


• Communication system development and testing

Compatibility & Integration Input impedance of 50 ohms with 1.5:1 VSWR matches standard RF test equipment. Output impedance of 50 ohms accommodates typical 2.5:1 VSWR loads without performance degradation. External leveling and pulse modulation inputs enable integration with test systems and signal conditioning circuits.