Amplifier Research 700A1

The Amplifier Research 700A1 is a solid-state, broadband RF power amplifier engineered to deliver high-power output across extended frequency ranges with built-in protection and precision measurement. This self-contained amplifier combines 700 watts minimum output capability with integrated safeguards against excessive VSWR, high line current, over-temperature conditions, and excessive output power. The unit employs time-delay and zero-crossing turn-on circuitry to minimize inrush current and extend component longevity.

Technical Specifications

• Minimum 700 watts from 10 kHz to 1 MHz


• Minimum 500 watts from 10 kHz to 1 MHz


• Minimum 250 watts from 8 kHz to 2 MHz Frequency Coverage


• 0.8 to 1000 MHz


• 10 kHz to 1 MHz


• 8 kHz to 2 MHz


• 150 kHz to 2 MHz Performance


• Frequency response flatness: ±1.0 dB typical


• 1.0 dB gain compression at CW linear operation

Key Features

• Front-panel directional watt meter with non-linear scale for forward and reflected power measurement, enabling sensitive load tuning


• Attenuator control for precise output level adjustment


• Rear-panel transformer tap selector for output impedance matching


• Voltage-regulated power supply to suppress noise and output fluctuations


• Self-contained forced-air cooling with filtered intake for industrial environments


• Plug-in modular sub-assembly design for simplified maintenance and field repair


• Input power requirement: 120 VAC only (external transformer required for other voltages)

Typical Applications Broadband RF test, EMI susceptibility testing, wireless system characterization, and power delivery across HF through UHF bands.

Compatibility & Integration Standard benchtop cabinet configuration with optional rack-mount frame available for integration into multi-instrument systems.