Best low phase noise

The R&S®FSWP phase noise analyzer and VCO tester features ultra-low noise internal sources and cross-correlation, providing very high sensitivity. 

This solution can measure phase noise and amplitude noise within seconds from highly stable sources used in radar and other applications. 

The R&S®FSWP is a unique test instrument with additional options such as pulsed signal measurements, residual phase noise (including pulsed) characterization and integrated high-end signal and spectrum analysis. 

• High-end signal, spectrum analyzer and phase noise tester integrated in a single instrument
  
  
• Simultaneous measurement of high sensitivity and high amplitude and phase noise through cross-correlation even in pulse signals
  
  
• Frequency range from 1 MHz to up to 50 GHz, up to 325 GHz when using an external mixer
  
  
• Internal source for residual phase noise measurements in pulsed signals
  
  
• SCPI recorder simplifies code creation

Refer  below to see which options are applicable to your product.