Testing Phase Noise of 

Ultra Low Phase Noise OCXOs

    Challenges and Solutions

Cross correlation technique is used to
test phase noise of ULPN OCXOs

Four test instruments are evaluated:

• Noise XT DCNTS • Agilent’s E5052B

• Symetricomm 5120A-01 • Anapico APPH6000

Each is rated in terms of:

• Accuracy • Speed • Ease of use

• Range • Cost • Ease of data retrieval  Details