Keysight Technologies Inc. Calibration kit, 4-in-1, open, short, load and through, DC to 40 GHz, 2.92 mm(f), 50 ohm
The Keysight 85561A is a 4-in-1 mechanical calibration kit designed for vector network analyzers (VNAs) and other RF/microwave test equipment. It covers a frequency range from DC to 40 GHz and features 2.92 mm female connectors with a characteristic impedance of 50 ohms. The kit includes open, short, load, and through standards in a compact, integrated form factor, enabling accurate and repeatable calibration of test setups. The 85561A is engineered to provide precise calibration for high-frequency measurements, ensuring reliable and traceable results in laboratory and production environments. It is compatible with Keysight network analyzers and supports automated calibration routines.