The Agilent/Keysight 85046A is a 50-ohm S-parameter test set engineered for two-port device characterization from 300 kHz to 3 GHz. It enables simultaneous measurement of forward and reverse transmission and reflection parameters with a single connection, supporting both directions of measurement. The instrument integrates programmable step attenuators for signal level control and solid-state or mechanical switching options, delivering directivity ratings of ≥35 dB (300 kHz to 1.3 GHz) and ≥30 dB (1.3 GHz to 3 GHz). Effective source match performance ranges from ≥20 dB at mid-band to ≥14 dB at low frequencies and ≥16 dB above 1.3 GHz. Switch repeatability is ±0.03 dB. Precision APC7 connectors ensure reliable RF connections in laboratory and production environments.
Technical Specifications
• Impedance: 50 Ohms
• Frequency Range: 300 kHz to 3 GHz
• Directivity:
– ≥35 dB: 300 kHz to 1.3 GHz
– ≥30 dB: 1.3 GHz to 3 GHz
• Effective Source Match:
– ≥14 dB: 300 kHz to 2 MHz
– ≥20 dB: 2 MHz to 1.3 GHz
– ≥16 dB: 1.3 GHz to 3 GHz
• Switch Repeatability: ±0.03 dB
• Connectors: Precision APC7 (7 mm)
– Key Features
• Simultaneous forward and reverse S-parameter measurement capability
• Programmable step attenuator for dynamic signal control
• Single-connection measurement of both device ports
• Switchable between solid-state and mechanical transfer switching
• High directivity across full frequency band
– Compatibility & Integration
The test set interfaces with Agilent 8753A/B/C, Agilent 8753D/E/ES Option 011, Keysight 4395, Keysight 4396, and selected 8702 Lightwave Component Analyzer configurations. Optional solid-state switching (Option 001) and mechanical switching (Option 009) accommodate different measurement speed and accuracy requirements. Rackmount kits are available with or without handles.
