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AD9361 Tx Mask problems

Question asked by Yossi-S on Jul 20, 2015
Latest reply on Nov 2, 2015 by tlili

Hi All,

 

I am transmitting an OFDM signal with BW of 4.2MHz (5.6MHz sampling rate) at 2.48GHz and the mask of the Tx is not as good as expected from ADI explanations. This mask is not good enough to pass some certifications.

The signal transmitted as shown in the figure is a continues transmission of the OFDM signal. Two images are shown marked in Red which are caused by the transmission, at about 4X the sampling rate.

 

Thanks,

Yossi

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