[Discuss-gnuradio] QtGui digital modulation application

[Tom Rondeau]

I wanted to let everyone know of some of the new features I've been 
adding to GNU Radio over the past few weeks. We've been working on 
making the QtGui system more usable and accessible for people to work 
with. You can now mix PyQt4 and the GNU Radio QtGui work together to 
build applications.

I have created a few example applications in gr-qtgui/src/python. There 
are two that are similar to usrp_fft.py and usrp2_fft.py where you can 
tab through the different views such as the PSD, waterfall, and oscope.

The other one is a application to allow you to examine the digital 
modulators. Using the constellation view tab, you can see what happens 
to the signal through the carrier recovery and timing loop. You can then 
play with the noise, timing, and frequency offset of the channel model 
as well as some of the gain values of the receiver. If you are working 
with the digital modulators, this can help you understand what values to 
use and how they affect the system.

Regards,
Tom