In this video Shahriar reviews the Signal Hound PN400 Phase Noise & VCO Test System:
https://signalhound.com/products/pn400-phase-noise-and-vco-test-system/
Operating at a frequency range of 100 kHz to 43.5 GHz, the PN400 harnesses the power of two SM family spectrum analyzers to create Signal Hound’s Phase Noise and VCO Test System. Enabling cross-correlation unlocks phase noise floors 20-30 dB lower than the capabilities of a single SM200 / SM435. The integrated low noise variable power supply and tune voltage facilitate precise VCO testing and characterization that includes tuning sensitivity and VCO pushing. Achieve high-performance automated test results in diverse systems with the PN400.
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