AnsweredAssumed Answered

AD9361 187K~188K Noise

Question asked by osamu.fu64@gmail.com on Jun 30, 2018
Latest reply on Jul 2, 2018 by sripad

i used AD-FMCOMMS3-EBZ with IIO Oscilloscope.

a 188KHZ noise appears when i set RX & TX LO frequency to 1500MHZ

 

Central frequency=1500.250MHZ

the left noise is 1500.062MHZ

the right noise is 1500.437MHZ

 

1500.250-1500.064=188khz

1500.437-1500.250=187khz

 

but this noise disappears when i set RX & TX LO frequency to 1501MHZ 

 

where is the source of this noise?

how to remove this noise?

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