The Anritsu MS4645A is a microwave vector network analyzer engineered for precision characterization of RF and microwave components across 10 MHz to 50 GHz. Part of the VectorStar™ MS4640A Series, this instrument delivers the dynamic range, measurement speed, and calibration repeatability required in aerospace, defense, and telecommunications development and production environments.
Technical Specifications
• Frequency Range: 10 MHz to 50 GHz
• Product Family: VectorStar™ MS4640A Series
• Test Port Connectors: K (m) Connector
• Noise Floor: –115 dBm at 40 GHz (characteristic performance)
• Internal Reference: 10 MHz Crystal Oscillator
• Operating Temperature (specifications): 25 °C ± 5 °C
• Error-Corrected Temperature Range: 23 °C ± 3 °C with < 1 °C variation from calibration temperature
– Key Features
• Dynamic range options: S21 measurements (Option 061) and S12 measurements (Option 051) at characteristic performance levels
• Port compression specification: < 0.1 dB compression beyond characteristic power level
• Calibration support for coaxial SOLT kits (SMA, 3.5 mm, K Connector, V Connector) and microstrip calibrations (SOLT, LRL, LRM)
• Automated calibration via precision AutoCal modules (36585K series)
– Compatibility & Integration
• Programming Interfaces: IEEE 488.2 (GPIB), USB, Ethernet
• Software Drivers: NET/COM for Windows (Visual Studio 6 through VS 2005, VB6, C#, C++, Visual C++, HP Vee)
• VISA Runtime: NI VISA version 3.2 or higher recommended for .NET and USB support
• Included Software: VectorStar Application, Noise Figure Uncertainty Calculator, Cal Kit File Maker, VectorStar Software and DSP Firmware, .Net/COM Driver, Programming Examples, and Capture VNA
• Remote operation supported
• Comprehensive documentation provided on CD; additional resources available as free downloads from www.anritsu.com


















