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How to reduce the integer multiple harmonics at the output of FMCOMMS2?

Question asked by madhan on Sep 24, 2015
Latest reply on Sep 28, 2015 by madhan

Hello,

 

I am using the reference design to initialize the FMCOMMS2 with ZED board.

When i observed the output spectrum for set RF frequency of 121 Mhz, I am getting the integer multiple harmonics

also as shown below..

 

FREQ_121MHz_SPAN_20MHz_TO_3GHz_at_-10dBm.png

Whether FMCOMMS2 generates these harmonics along with the set output..?

If so how to reduce/suppress them..?

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