Stabilization of phase noise of PLL system under random vibration environment

Phase noise performance of PLL during Random vibration environment is discussed in this article. Experimentation is carried out in X band frequency. It's basically achieved by following methodologies, via; vibration- isolator compensation technique, purification tactic of source Crystal Reference for PLL and also analyzed the spatial location to find out center of gravity for mounting of Crystal Reference. It helps to avoid UUT (unit under test) resonance out of frequency spectrum (PSD) of Random vibration profile which avoids resonance pickups during testing in Phase noise performance.