Agilent/Keysight 8554B

The Agilent/Keysight 8554B is a spectrum analyzer plug-in module that extends the frequency analysis capabilities of compatible mainframe units. It delivers precise signal component measurements across 100 kHz to 1250 MHz, making it essential for RF and microwave characterization where detailed spectral data and measurement accuracy are critical.

Technical Specifications

• Operating range: 100 kHz to 1250 MHz


• Input impedance: 50 Ω nominal


• Maximum input level: +13 dBm peak/average power (1.4 Vac peak) or ±50 Vdc incident on mixer; +33 dBm incident on input attenuator at 50 dB position Amplitude Measurement


• Absolute amplitude calibration range: -122 dBm to +10 dBm (log)


• Amplitude accuracy: ±1.75 dB with proper technique


• Average noise floor: <-102 dBm with 10 kHz IF bandwidth


• Dynamic range supports residual responses 65 dB below -40 dBm input signal IF Bandwidth & Selectivity


• IF bandwidths: 100 Hz to 200 kHz selectable


• 60 dB/3 dB ratio: <20:1 (10 kHz–200 kHz); <11:1 (100 Hz–3 kHz) Stability & Noise Performance


• Residual FM (stabilized): <100 Hz peak-to-peak


• Residual FM (unstabilized): 70 dB below CW signal at 50 kHz or greater offset (1 kHz IF bandwidth) Calibration & Reference Level


• System frequency response: ±1.50 dB


• Log reference level: 70 dB range (60 dB below 200 kHz) in 10 dB steps, ±0.2 dB accuracy


• Vernier control: continuous 12 dB range, ±0.1 dB at 0, -6, -12 dB positions; ±0.25 dB elsewhere


• Calibrator output: -30 dBm (±0.3 dB) at 30 MHz (±3 kHz)


• Input attenuator: 0 to 50 dB in 10 dB steps Display


• Persistence: 0.2 to 60+ seconds variable


• Stored display retention: >2 hours at reduced intensity; 1 minute at normal intensity


• Erase time: 350 milliseconds Physical & Environmental


• Dimensions: 102 mm H × 226 mm W × 344 mm D (4″ × 8.9″ × 13.5″)


• Weight: 17 lb


• Operating temperature: 0° to +55°C


• Storage temperature: -40° to +75°C

Key Features

• Plug-in architecture for Agilent/Keysight mainframe integration


• High-resolution spectral analysis with <-102 dBm noise floor capability


• Precision amplitude calibration across 132 dB dynamic range


• Compact form factor with extended display persistence for signal capture and retention

Typical Applications Frequency response characterization, RF signal detection, spectrum monitoring, and microwave component analysis across the VHF and UHF bands.

Compatibility & Integration Designed as a plug-in module for compatible Agilent/Keysight mainframe units, including the 141T Spectrum Analyzer Mainframe.