Amplifier Research

Amplifier Research 900S1G4

RF Amplifier 0.8 - 4.2 GHz 900W
0.8 GHz – 4.2 GHz Frequency Range
900 Watts Output Power (Minimum Saturated)
50 dB Gain (Minimum)
10 mW (10 dBm) maximum Input Power for Rated Output
-10 dBc maximum (at rated output) Harmonic Distortion
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Attribute Value
Frequency Range 0.8 GHz – 4.2 GHz
Output Power (Minimum Saturated) 900 Watts
Gain (Minimum) 50 dB
Input Power for Rated Output 10 mW (10 dBm) maximum
Harmonic Distortion -10 dBc maximum (at rated output)
Input VSWR 2.0:1 maximum
Output VSWR 2.0:1 maximum
Noise Figure 12 dB typical
Power Requirements 208 VAC, 3-phase, 47–63 Hz
Cooling Method Forced air cooling (internal blower)
Calibration Form Amplifier Research 900S1G4

Repair Form Amplifier Research 900S1G4
Maximum file size: 40MB

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Model900S1G4

The Amplifier Research 900S1G4 offers 900 W CW output over 0.8 GHz to 4.2 GHz, designed for EMC, military RF, and high-level stress testing. Built with Class A architecture, it ensures linear operation, excellent harmonic suppression, and stable continuous-wave output. Advanced protection systems and rugged design guarantee safe, long-term operation.

It includes remote interfaces such as Ethernet, RS-232, and GPIB, making it suitable for modern automated test setups. The rack-mount design with efficient cooling enhances integration into laboratories and industrial environments.

Testwall can supply the used Amplifier Research 900S1G4, 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 900S1G4.

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