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AD9361 is amplitude modulated under different LO

Question asked by Enable on Aug 20, 2017
Latest reply on Aug 23, 2017 by Vinod

I now use the AD9361, with two boards were used to send and receive, found that there has been a sine wave  in different LO the sine wave frequency is not the same. I have got some data from FPGA.

this is the receiver data, witch the tx's 0x3f4=0x03. in 520MHz

in 1040MHz

in 2080Mhz

 

Can you tell me what caused this phenomenon?

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