The Agilent/Keysight 8753A is a Vector Network Analyzer (VNA) that measures magnitude and phase parameters across RF and microwave frequencies from 300 kHz to 3 GHz. It delivers 100 dB dynamic range with an integrated synthesized source offering 1 Hz frequency resolution and output power from +5 dBm to −20 dBm. The instrument characterizes S-parameters, impedance, gain, group delay, and frequency response of active and passive networks.
Technical Specifications
• Frequency range: 300 kHz to 3 GHz
• Dynamic range: 100 dB
• Synthesized source frequency resolution: 1 Hz
• Output power: +5 dBm to −20 dBm (greater than 100 mW)
• Sweep modes: Linear, logarithmic, list, power, CW
• Marker resolution: 0.001 dB magnitude; 0.01 degrees phase; 0.01 nanoseconds group delay
• RF attenuator range: 70 dB in 10 dB steps
• Maximum operating level: +20 dBm
• Damage level: +30 dBm
• DC bias range: ±30 VDC, 200 mA / 500 mA maximum
• DC bias connectors: 50 ohm BNC (female)
– Key Features
• Dual independent display channels for simultaneous reflection and transmission viewing
• Multiple display formats: Log magnitude, linear magnitude, SWR, phase, group delay, polar, real, Smith Chart
• Time domain analysis via Inverse Fourier Transform computation
• Reflection coefficient versus time and transmission coefficient versus time display capabilities
• Error correction reducing systematic residual errors: directivity >50 dB, source and load match >40 dB, frequency response <0.05 dB
• Soft-key interface for rapid measurement setup
– Typical Applications
• Component characterization: passive and active RF/microwave devices
• S-parameter measurements across 300 kHz to 3 GHz band
• Impedance and gain analysis
• Group delay and phase deviation measurements
• Time domain discontinuity identification and transient response simulation
– Compatibility & Integration
• Programming interface: HP-IB / GP-IB
• External storage: Direct save/recall via disc drive
• Graphics output: Programmable to CRT display


















