The Keysight N4691D/F0F electronic calibration module provides repeatable two-port calibration for vector network analyzers and RF test systems. Its DC-to-26.5 GHz coverage and 3.5 mm female-to-female connectors support accurate high-frequency measurements.
Key specifications
- Frequency range: DC to 26.5 GHz
- Connector type: 3.5 mm (f/f)
- Two-port design
- Calibration standards: Open, Short, Load, and Through
- Typical accuracy: ±0.05 dB
- Typical repeatability: ±0.02 dB
- Typical stability: ±0.01 dB/year
Recommended applications
Use the N4691D/F0F for VNA calibration, S-parameter measurement, RF development, manufacturing test, and field service. Confirm connector and calibration-kit compatibility before ordering.





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