The Agilent/Keysight 8347A is a broadband RF plug-in amplifier engineered to deliver stable, high-power drive signals across instrumentation and test systems. Operating from 100 kHz to 3 GHz, it provides ≥25 dB gain with leveled output power from +2 dBm to +20 dBm, making it ideal for overcoming RF losses, driving mixers and power amplifiers, and extending dynamic range in network analysis and spectrum applications.
Technical Specifications
Frequency & Power Performance
• Frequency range: 100 kHz to 3 GHz
• Maximum leveled output power: ≥+20 dBm
• Output power leveling range: +2 dBm to +20 dBm (frequencies ≥300 kHz)
• Output power at 1 dB gain compression: +22 dBm
• Mean gain: ≥25 dB
• Gain flatness (internally leveled): ±1.5 dB
Noise & Linearity
• Noise figure: 15 dB (10 MHz to 3 GHz); 20 dB (below 10 MHz)
• Third-order intercept: +30 dBm
• Harmonic distortion at +20 dBm output: ≤-25 dBc (ALC off); ≤-20 dBc typical (ALC on)
Input/Output Characteristics
• RF input and output impedance: 50 ohms
• Input VSWR: 2.0:1
• Output VSWR (internally leveled): 1.5:1
• Output VSWR (unleveled, below 2 GHz): 2.0:1
• Output VSWR (unleveled, 2 GHz to 3 GHz): 3.0:1
• Reverse isolation: 60 dB
• RF connectors: Type N female
• Maximum input for minimum internally leveled output: -14 dBm
Physical Specifications
• Dimensions: 213 mm W × 102 mm H × 298 mm D
• Net weight: 4 kg; Shipping weight: 5 kg
– Key Features
• Internal leveling loop reduces mismatch and reflection effects
• Broadband operation with consistent gain flatness across full frequency range
• High reverse isolation minimizes signal reflections back to source
• Selectable internal leveling (ALC) for dynamic output power control
– Typical Applications
• Automatic Test Equipment (ATE) systems requiring stable drive signals
• Network analysis with enhanced dynamic range and improved low-level sweep speed
• Spectrum analysis and frequency counting as a preamplifier
• Frequency conversion and mixer/amplifier driver stages
– Compatibility & Integration
Designed as a plug-in module for Agilent/Keysight test instruments. Type N female connectors enable straightforward integration into 50-ohm RF systems.
