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ERASynth vs Rigol DSG3030 vs Agilent E8257D

A project log for ERASynth

Open-Source, Arduino-Compatible RF Signal Generator with Wi-Fi Connectivity

edensrockedensrock 05/31/2017 at 12:460 Comments

If we were to name one area where ERASynth truly excels at, it would be the pedestal phase noise. (phase noise at offsets from 1kHz to 100kHz)

A signal generator’s pedestal phase noise has different impacts on the system depending on the application. For example, when used as a local oscillator in a receiver application, pedestal phase noise degrades the receiver sensitivity. When used as a clock source in a data converter, pedestal phase noise (together with close-in phase noise) determines the jitter, which ultimately effects the converters dynamic performance.

We carried out a test to compare ERASynth to a couple of bench-top signal generators available in our lab. Here is the result:

The graph above is obtained using this setup.


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