Anritsu 36585K – Precision AutoCal; 2-Port, 70 kHz to 40 GHz

The Anritsu 36585K Precision AutoCal is a fully automated 2-port calibration system for Anritsu vector network analyzers, delivering 12-term error correction across 70 kHz to 40 GHz. Operating with K-type (2.92 mm) connectors, this module employs automatic transfer calibration based on LRL (Line-Reflect-Line) principles, offering superior corrected characteristics over manual SOLT methods. The system minimizes parasitics through advanced high-frequency switching technology, reducing loss and improving matching performance.

Technical Specifications

• Frequency Range: 70 kHz to 40 GHz


• Ports: 2-Port configuration


• Connector Type: K (2.92 mm)


• Calibration Method: Automatic transfer calibration (LRL-based)


• Re-characterization Interval: 12 months (with proper module and connector care)


• Power Supply: 12 V DC (external power supply required, e.g., Anritsu 40-168-R)

Key Features

• Delivers consistent, fast calibrations with minimal manual intervention


• LRL-based methodology provides superior accuracy versus SOLT calibration


• Advanced high-frequency switching minimizes parasitics for enhanced measurement integrity


• Includes characterization data file for host VNA operation


• Available in three connector configurations: male-to-male (36585K-2M), female-to-female (36585K-2F), and male-to-female (36585K-2MF)


• Supplied with torque wrench (01-201, 0.9 N·m), universal connector wrench (01-204), USB-resident characterization data, and line power cord

Compatibility & Integration Designed for Anritsu VectorStar Family VNAs and MS4640A Series units. Compatible with MS4645B or MS4647B VNAs using adapters. Not compatible with original 360, 37xxx Series, or MS462xx Series VNAs. Anritsu guarantees published specifications only with Anritsu-characterized AutoCals. Customer re-characterization is supported via the MS4640A VNA. Control is managed through the host VNA; legacy units may employ RS-232 or GPIB (IEEE 488.2) interfaces.