The Keysight (Agilent) N4690C is a 2-port electronic calibration module (ECal) that automates VNA calibration across 300 kHz to 18 GHz. Type-N connectors with 50 Ohm impedance enable full two-port calibration via single connection, eliminating manual mechanical kit procedures and reducing setup time. The module stores unique S-parameter data that computes error terms for the vector network analyzer, delivering NIST traceable accuracy. Solid-state switching and USB control minimize operator error while improving measurement repeatability.
Technical Specifications
• Frequency Range: 300 kHz to 18 GHz
• Ports: 2-port configuration
• Impedance: 50 Ohm
• Connectors: Type-N (male/male, female/female, or male/female options available)
• Control Interface: USB
• Switching Technology: Solid-state
• Accuracy: NIST traceable
– Electrical Characteristics
• Maximum Input Power: +9 dBm
• Minimum Input Power: −45 dBm
• Directivity: 43 dB to 50 dB (frequency dependent)
• Source Match: 36 dB to 48 dB (frequency dependent)
• Reflection Tracking: ±0.03 dB to ±0.15 dB (frequency dependent)
• Transmission Tracking: ±0.05 dB to ±0.11 dB (frequency dependent)
• Load Match: 36 dB to 42 dB (frequency dependent)
– Key Features
• Single-connection full two-port calibration eliminates multi-step mechanical procedures
• Transfer standard design with embedded S-parameter data ensures consistent accuracy
• Shorter female connector design enhances mechanical repeatability
• Operating temperature: +20 °C to +26 °C
• Environmental tolerance: Up to 95% relative humidity, non-condensing
– Typical Applications
• RF and microwave VNA calibration
• Laboratory and field measurement verification
• Production test environments requiring frequent recalibration
– Compatibility & Integration
Supported on Keysight PNA Series (N522X, N523X, N524X) and ENA Series vector network analyzers.
