The Keysight 85561A is a 4-in-1 mechanical calibration kit for RF and microwave network analyzers. It integrates Open, Short, Load, and Thru (OSLT) standards in a single compact unit, eliminating the need to manage separate calibration components. The kit operates from DC to 40 GHz and features 2.92 mm female connectors with 50 Ohm characteristic impedance, ensuring direct compatibility with Keysight network analyzers and RF test equipment. Load return loss ranges from 24 to 39 dB across the operating frequency band.
Technical Specifications
• Operating Frequency: DC to 40 GHz
• Connector Type: 2.92 mm (female)
• Characteristic Impedance: 50 Ohm
• Load Return Loss: 24 to 39 dB (frequency-dependent)
• Operating Temperature: 0 to 55 °C
• Storage Temperature: −30 to 70 °C
• Humidity: 95% non-condensing
• Dimensions: 81 mm W × 101 mm H × 112 mm D
• Weight: 0.45 kg
– Key Features
• Complete OSLT calibration standards in one kit
• Compact, lightweight design for field portability
• Repeatable mechanical construction for measurement consistency
• Covers the full DC to 40 GHz spectrum without kit switching
• Load performance specified across frequency range
– Typical Applications
• Network analyzer calibration and verification
• RF and microwave system characterization
• Component and transmission line measurements
• Production test and incoming inspection workflows
– Compatibility & Integration
The 85561A connects directly to Keysight RF and microwave test instruments via its 2.92 mm female connectors. Compatibility extends across network analyzer models equipped with matching 2.92 mm ports, streamlining integration into existing lab and manufacturing test setups.
