AnsweredAssumed Answered

FMCDAQ2 + IIOscope filters received signal?

Question asked by justinklchan on Jul 25, 2017
Latest reply on Jul 27, 2017 by rejeesh

I am using IIOscope with the FMCDAQ2 and KC705 board.

 

I transmitted a short BPSK message, this is how it looks like on the external scope

Note that the message lasts for about 10 cycles, with a single change in phase at the 7th peak. 

 

However, on IIOscope I get something completely different.

 

This looks nothing like what I saw on the external scope. I would actually like to demodulate the data. I assume the ADC is doing some filtering? How can I get the untampered signal?

 

Additionally, when I plot the file in MATLAB I get jittery signals like this:

Is this expected and how can I correct for this?

Outcomes