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Fmcomms5- simultaneous acquisition of data

Question asked by nidhinki on Jun 29, 2016
Latest reply on Jul 4, 2016 by nidhinki

Hi,

I'm using fmcomms5 and zc706 to capture data simultaneously using IIO oscilloscope tool in Linux OS. What I have observed is that data in two channels within a single ad9361 are coming simultaneously and  can be  seen it in IIO oscilloscope, but between two ICs I am not able to see the simultaneous acquisition.

 

I am using a signal generator and a splitter to generate 4 RF signals, The splitter and RF cables used were checked with Network analyzer to ensure the phase matching between 4 RF signals.

 

Can anyone suggest on how to acquire data simultaneously (i.e with phase matching) on all 4 channels.

 

The screen shots for channels 1-2 and 3-4 (two channels within single ad9361, fig 1&3) and 1-3( two channels of two ad9361s, fig2) is attached

1_2.png

1_3.png

3_4.png

 

It can be seen that in 2nd figure(channel 1 and 3) data acquisition is not  simultaneous

 

Regards,

Nidhin K.

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