Agilent/Keysight 3577A

The Agilent/Keysight 3577A is a programmable network analyzer covering 5 Hz to 200 MHz with 100 dB dynamic range. It performs magnitude, phase, insertion loss, return loss, reflection coefficient, impedance, gain compression, and group delay measurements. The instrument delivers ±0.02 dB dynamic accuracy with resolution to 0.001 dB in magnitude, 0.005° in phase, and 1 ps in time-domain analysis.

Technical Specifications

• Frequency Range: 5 Hz to 200 MHz


• Frequency Resolution: 0.001 Hz


• Dynamic Range: 100 dB


• Dynamic Accuracy: ±0.02 dB


• Measurement Resolution: 0.001 dB (magnitude), 0.005° (phase), 1 ps (group delay)


• Source Output Level: +15 dBm to −49 dBm with 0.1 dB resolution


• Source Output Flatness: 1.5 dBp-p (5 Hz to 200 MHz)


• Receiver Input Impedance: Selectable 50 Ω or 1 MΩ


• Test Input Ports: R, A, B (100 dB dynamic range each)


• Display Modes: Magnitude, Phase, Polar, Real, Imaginary, Group Delay


• Display Formats: Rectangular, Polar, Smith Chart with electronic graticules

Key Features

• Three-term error correction and vector error correction for measurement accuracy


• Normalization and vector averaging for noise reduction


• Frequency sweep (logarithmic, linear, alternate) and amplitude sweep capabilities


• Complex trace storage with vector math functions for user-defined operations


• Front-panel line stretcher with meter/centimeter readout for electrical length matching


• Non-volatile memory stores up to 5 front-panel setups


• RF connectors: Type N female


• External 10 MHz reference input (BNC female, 50 Ω nominal, 0 dBm ±10 dB)


• 10 MHz reference output

Typical Applications Reflection and transmission measurements on passive and active devices, impedance characterization, insertion loss and return loss analysis, group delay measurement, and gain compression testing in component and subsystem development.

Compatibility & Integration HP-IB (Hewlett-Packard Interface Bus) programmability enables integration into automated test systems. Direct plotter control supports HP 7470A, 7475A, 7550A, and 7090A graphics plotters for measurement documentation.