Keysight (Agilent) N4693A Electronic Calibration Module, 10 MHz to 50 GHz

The Keysight (Agilent) N4693A is a 2-port electronic calibration module that delivers full two-port calibration from a single connection across 10 MHz to 50 GHz. Operating with 2.4 mm connectors, this ECal module eliminates manual calibration procedures, reducing operator error and connector wear on both the module and VNA. Solid-state switching ensures repeatable, NIST-traceable calibrations essential for laboratory and production environments demanding high measurement confidence.

Technical Specifications

Frequency coverage spans 10 MHz to 50 GHz with performance-balanced across the range. Reflection tracking remains within ±0.08 to ±0.10 dB across most bands, tightening to ±0.08 dB between 45 MHz and 10 GHz. Transmission tracking ranges from ±0.09 dB (200 MHz to 2 GHz) to ±0.15 dB at band edges. Load match varies from 27 to 35 dB depending on frequency, while source match spans 29 to 36 dB. Operating temperature is maintained at +20 to +26 °C.

Key Features

• Full two-port calibration via single connection eliminates multi-step manual procedures


• NIST-traceable measurements ensure calibration confidence


• Solid-state switching provides consistent, repeatable performance


• Reduces connector wear through automated operation


• Available in three connector configurations: M0F (one male, one female), F0F (both female), M0M (both male)


• Compact form factor: approximately 12 × 9 × 5 inches, 3 lbs

Typical Applications

• VNA calibration in RF/microwave test laboratories


• Production line network analyzer verification


• Periodic calibration maintenance in field environments


• High-frequency device characterization requiring traceable calibration standards

Compatibility & Integration Direct USB control integrates with Keysight PNA and ENA series network analyzers. Legacy analyzer support (Agilent 8753E/ES/ET and 8720D/ES/ET models) requires the optional 85097B interface kit.