Amplifier Research

Amplifier Research 400A400

RF Amplifier 10 kHz - 400 MHz 400W
10 kHz – 400 MHz Frequency Range
400 Watts CW minimum Output Power
minimum 55 dB Gain
typically less than 10 mW Input Power for Rated Output
3:1 any phase, without damage Output VSWR
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Attribute Value
Frequency Range 10 kHz – 400 MHz
Output Power 400 Watts CW minimum
Gain minimum 55 dB
Input Power for Rated Output typically less than 10 mW
Output VSWR 3:1 any phase, without damage
Noise Figure less than 15 dB typical
Input Impedance 50 Ohms nominal
Output Impedance 50 Ohms nominal
Power Requirements 220 VAC, single phase, 50/60 Hz, 3000 VA
Cooling Forced air, internal blower
Amplifier Research 400A400 Options:
  • 400A400 - 400A400 - Type N female RF input (front), Type N female RF output (front)
  • 400A400 - 400A400M1 - Type N female RF input (rear), Type N female RF output (rear)
Calibration Form Amplifier Research 400A400

Repair Form Amplifier Research 400A400
Maximum file size: 40MB

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Model400A400

The Amplifier Research 400A400 RF Amplifier is a solid state, air-cooled, broadband amplifier delivering a minimum of 400 watts of swept power. It features push-pull LDMOS circuitry for reduced distortion and enhanced stability, with a Digital Control Panel offering local and remote operation. Equipped with forward and reflected RF sample ports, gain control, and multiple interface formats (GPIB/IEEE-488, RS-232, USB), this model ensures precise measurements and reliable performance.

Typical applications include RF susceptibility testing, antenna and component testing, watt meter calibration, particle accelerators, plasma generation, communications, and use as a driver for higher power amplifiers.

Testwall can supply the used Amplifier Research 400A400, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Amplifier Research 400A400.

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