Keysight (Agilent) 346CK01 1GHz – 50GHz, Noise Source

The Keysight (Agilent) 346CK01 is a precision noise source engineered to deliver calibrated, stable noise output across the 1 GHz to 50 GHz frequency range. Purpose-built for noise figure measurements, it characterizes the performance of high-frequency components including receivers, amplifiers, and RF/microwave subsystems. The instrument maintains consistent output suitable for research and development, manufacturing, and quality control environments where measurement repeatability is critical.

Technical Specifications

• Frequency Range: 1 GHz to 50 GHz


• Output Impedance: 50 Ohms nominal


• Excess Noise Ratio (ENR): Calibrated output, values detailed in product datasheet


• Power Input: DC source (specifications provided in product documentation)


• RF Output Connector: Type-N (f) or equivalent high-frequency connector


• Warm-up Time: Specified in product manual

Key Features

• Calibrated noise generation across full 1–50 GHz operating band


• 50 Ohm nominal impedance matching for direct integration into test systems


• Designed to facilitate high-accuracy noise figure characterization


• Stable performance under repeated measurement cycles

Typical Applications

• Receiver noise figure measurement (cellular base stations, radar, satellite systems)


• Low-noise amplifier (LNA) and component validation


• Mixer, filter, and RF subsystem performance verification


• RF/microwave system design validation


• Production test and quality control of high-frequency modules

Compatibility & Integration The 346CK01 integrates with network analyzers, spectrum analyzers, and dedicated noise figure test sets that accept external noise sources. Operation may be automated through compatible test controllers or measurement software providing power and control signals.