MT DQPSK (pi over 4) Transceiver.vi example, where to wire base-band digital I and Q for a RTL-SDR

[bedwards]

I am trying to use the MT DQPSK (pi over 4) Transceiver.vi example to demodulate base-band digital I and Q from a RTL-SDR.  Where in the example should I wire in the baseband I and Q?

[Carl_W]

You will need to go down 2 levels of sub vi's. First go to niDMT.lvlib:mod_PSK Transmitter.vi. Then down to niDMT.lvlib:mod_Create TX Sequence.vi. Then change the polymorphic vi niDMT.lvlib:MT Generate Bits to user defined.

[gizem11]

hello ,

I am working on MT DQPSK (pi over 4) Transceiver.vi block diagram.I am trying find a input but I cant find.I am wondering, at this system inside input value , is it   ''seed in'' ? I am not sure because I am a internship student if you can help me I am be happy.

Thank you  

[Danubio]

Hello Gizem,

I was trying to find the example that you mention and I got to the following page:

“Modulation Toolkit Shipping Examples”

http://www.ni.com/white-paper/6722/en/#top

I opened the examples from the “Demodulate FM (Simulated Data)”:

http://www.ni.com/example/30646/en/

But I wasn’t able to find specificaly the DQPSK (pi over 4) Transceiver.vi that you mentioned. Could you please indicate me where do I find that VI so that I could assist you?

Regards,

Daniel.