Re: [Discuss-gnuradio] reg. PSK Mod Block in Gnu radio

[Marcus D. Leech]

On 06/10/2013 07:25 PM, vamshi krishna dodla wrote:

http://gnuradio.squarespace.com/storage/tutorial/rondeau-costterra2.pdf

Hi all, why does the output of PSK Mod block is imperfect, compared to theoritical QPSK constellation.( iam implementing qpsk with 4 sampl/sym and 4 constellation points).The experiment im doing is the same in link (http://gnuradio.squarespace.com/storage/tutorial/rondeau-costterra2.pdf).

--

Thanks & Regards

Vamshi Krishna.

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

This kind of question is *much* better accompanied by the flow-graph you're working, perhaps an FFT and constellation plot, etc, etc.

You question, as presented, reduces to "why does thing thing I'm doing not work".  Which nobody will be able to help you with.

-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org