Hewlett Packard HP 8751A Network Analyzer System 5Hz-500MHz WITH OPTION 001

The Hewlett Packard HP 8751A Network Analyzer System with Option 001 is a precision instrument for characterizing passive and active electronic networks, components, and devices across the 5 Hz to 500 MHz frequency range. Built for laboratory and production testing environments, this analyzer delivers high-resolution measurements of linear network behavior with dual-channel capability for simultaneous multi-trace display and independent stimulus control.

Technical Specifications

• Frequency range: 5 Hz to 500 MHz


• Frequency resolution: 1 mHz


• Frequency accuracy: ±1.0 ppm (with Option 001)


• Frequency stability: ±2.5 × 10⁻⁹ / 8 hours typical at 23 ±5° C Measurement Accuracy


• Dynamic accuracy: ±0.05 dB, ±0.3° (input levels −10 to −60 dBm, 20 Hz IF bandwidth)


• Measurement resolution: 0.001 Hz, 0.001 dB, 0.001 degree, 10 ps Source


• Output power range: −50 dBm to +15 dBm


• Output power resolution: 0.1 dB


• Output power flatness: ±2.0 dB across 5 Hz to 500 MHz at +0 dBm


• Level accuracy: ±0.5 dB at 50 MHz, 0 dBm


• Output impedance: 50 Ω Receiver


• Input range: 0 dBm (20 dB ATT) to −20 dBm (0 dB ATT)


• IF bandwidth options: 2 Hz, 20 Hz, 200 Hz, 2 kHz, 4 kHz


• Noise level: −130 dBm at 20 Hz IF bandwidth, 0 dB ATT, ≥100 kHz


• Maximum input level: 0 dBm


• Input impedance: 50 Ω


• Crosstalk: < −100 dB

Key Features

• Dual-channel architecture with up to four simultaneous trace display and independent stimulus control per channel


• Transfer function measurements: magnitude/phase, insertion loss/gain, attenuation, S-parameters, electrical length, group delay, deviation from linear phase


• Impedance analysis: magnitude/phase, R+jX, return loss


• Full 1-port, 2-port, and interpolative calibration methods


• Time-domain response analysis capability


• List sweep functionality with user-defined frequencies, power levels, IF bandwidths, and point density


• Auto sweep time adjustment based on IF bandwidth, point count, averaging mode, and frequency range


• Conjugate matching analysis for L-C network optimization


• Spectrum analysis and complex impedance measurement support

Typical Applications Component characterization, filter and amplifier evaluation, impedance matching, transmission line analysis, gain compression measurement, and network parameter extraction for both passive and active devices.

Connectivity HP-IB programmable interface for remote control and automated test sequences.