Virtually all that's needed as a close in noise analysis tool. Coupled with the PC virtual control panel, the HA2100A greatly simplifies both residual and absolute phase noise measurements with added functionality for making power supply and flicker noise measurements.

Opto-Isolated with 1nV Input Noise
FFT Analysis from DC to 100kHz
100dB Dynamic Range
0dB, 32dB, 64dB Gain Steps
Programmable Analog PLL