Agilent / Keysight 8757C Scalar Network Analyzer

The Agilent/Keysight 8757C Scalar Network Analyzer measures amplitude and frequency response across RF and microwave components with 76 dB dynamic range. This instrument performs insertion loss, gain, return loss, SWR, and power measurements from 10 MHz to 50 GHz in coaxial systems and up to 110 GHz in waveguide configurations. It delivers simultaneous ratio and non-ratio measurements of transmission and reflection characteristics with configurable measurement resolution up to 1601 points per trace.

Technical Specifications

• 10 MHz to 50 GHz (coaxial systems)


• Up to 110 GHz (waveguide systems) Dynamic Range


• 76 dB (−60 dBm to +16 dBm) Measurement Accuracy


• Transmission Loss/Gain: ±(0.1 dB + 0.01 dB/dB) for ≤20 dB power change within +10 to −40 dBm using HP 11664A/E detectors


• Reflection measurements: Calibration and frequency response errors removed via open/short averaging Data Acquisition


• Horizontal resolution: 101, 201, 401, 801, or 1601 points per trace


• Transfer speed (401-point ASCII): 500 ms typical


• Transfer speed (single-point binary): 5–7 ms typical


• Averaging: 2 to 256 successive traces


• Smoothing aperture: 0.1% to 20% of trace width Detector Configuration


• Three detector inputs standard


• Optional fourth detector input (Option 001)


• Four independent display channels

Key Features

• AC mode (modulated RF) for measurements amid undesired signals


• DC detection for swept-frequency power measurements


• Precision color display with operator-selectable CRT attributes


• Binary and ASCII data format support


• External disk and internal register save/recall


• Built-in limit testing for pass/fail decisions

Measurement Capabilities

• Insertion loss


• Gain


• Return loss


• Standing Wave Ratio (SWR)


• Power measurements


• Simultaneous transmission and reflection characterization