Agilent/Keysight 8902

The Agilent/Keysight 8902A is a measuring receiver engineered for precise analysis of signal modulation characteristics across RF and microwave frequencies. It delivers accurate measurements of AM, FM, and phase modulation with integrated power analysis, frequency counting, and audio demodulation capabilities. The instrument spans 150 kHz to 1.3 GHz in its base configuration, extending to 26.5 GHz with the optional 11793A microwave converter.

– Technical Specifications

Frequency Coverage
• Base unit: 150 kHz to 1.3 GHz
• With 11793A converter: 50 MHz to 26.5 GHz
• Frequency counting: DC to 26.5 GHz at 10 Hz resolution
• Frequency entry resolution: 50 kHz; maximum entry: 42 GHz

Power Measurement
• Dynamic range: 115 dB
• Measurement levels: +30 dBm to –127 dBm
• Tuned RF Level (Option 050): –120 dBm to 0 dBm with ±(0.015 dB + 0.005 dB/10 dB step) accuracy
• Carrier power: +30 dBm to –20 dBm with specific filters

Modulation Analysis
• AM: 1% accuracy across modulation rates 20 Hz to 100 kHz
• FM: 1% accuracy; deviation rates 20 Hz to 10 kHz (150 kHz ≤ fc < 10 MHz) and 20 Hz to 200 kHz (10 MHz ≤ fc ≤ 1300 MHz)
• Phase Modulation: 3% accuracy; deviation rates 200 Hz to 10 kHz (150 kHz ≤ fc < 10 MHz) and 200 Hz to 20 kHz (10 MHz ≤ fc ≤ 26.5 GHz)
• Residual FM: <8 Hz rms at 1300 MHz, <1 Hz rms for 100 MHz and below (50 Hz to 3 kHz BW)
• AM rejection: <0.03 radians peak (50 Hz to 3 kHz BW)

Detectors
• IF Synchronous Detector: 200 Hz BW; linearity ±0.007 dB/dB change
• IF Average Detector: 30 kHz BW; linearity ±0.013 dB/dB change (0 °C to +35 °C)
• Peak, average, RMS, and peak-hold configurations available

Noise Performance
• Carrier noise measurements: AM and phase noise to –140 dBc/Hz

– Key Features

• Recovers modulating signal for audio frequency and distortion analysis
• Automatic level control (ALC) for AM measurements
• Mixer linearity negligible at levels ≤ –5 dBm
• RF power sensor modules: 11722A (100 kHz to 2.6 GHz) and 11792A (50 MHz to 26.5 GHz); both support –20 dBm to +30 dBm measurements

– Compatibility & Integration

Fully GPIB-controlled. AC power: 100, 120, 220, or 240 V (+5%, –10%), 48 to 66 Hz, 200 VA maximum.