Hello Cinaed, Discussion List, Once again thank you for the response,
Please believe me that i have gone through tutorials, and i have understood that in the python Top block i could enable/disable blocks, i also went through this specific one for modulations: https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation An you are totally correct regarding how to modulate properly, nevertheless what i am trying to do is that while the flowgraph is running, to switch the modulation (even if is not totally tuned) and that i can see that modulation in the QT GUI. That´s why, if you take a look at my flowgraph you see how I create a QT Chooser so I can select the modulation. My main problem is that i can not get it to work, it does not switch to other modulation when I switch in the QT Gui while I run the flowgraph. I would appreciate any ideas regarding this, and also i f you (Cianed) could describe me a little more how a Hierarchical Block could help me in this. Once again thank you all. Kind regards. On Tue, Jan 22, 2019 at 3:51 PM Cinaed Simson <cinaed.sim...@gmail.com> wrote: > On 1/22/19 8:51 AM, Luis Felipe Albarracin Sanchez wrote: > > Hello Cinaed, > > > > Thank you for the quick response, > > > > I look at your flowgraph, and i appreciate al the corrections you told > me. > > > > I must just say that i was guiding myself through the examples that are > > under the folder digital when you install GNU Radio. > > Those examples presume you have already gone through the tutorials. > > > > > I took your model, and did some changes to mine (attached my new file) > > but i still can´t get in the QT GUI to switch between different > > modulations, if i start with 8-QAM it does not switch to QPSK when i > > choose QPSK in the QT Chooser, i would appreciate if you can give me > > any ideas regarding this. > > Right click on the Constellation Object, and there's a pull down menu > under Constellation Type - select the one you want. > > If that's not what you're looking for then you have to figure out how to > do whatever it is you want to do. And it may require creating a > hierarchical block. > > My advice is to work through the tutorials. > > -- Cinaed > > > > > > Kind regards. > > > > > > > > On Tue, Jan 22, 2019 at 1:00 AM Cinaed Simson <cinaed.sim...@gmail.com > > <mailto:cinaed.sim...@gmail.com>> wrote: > > > > On 1/21/19 3:47 PM, Luis Felipe Albarracin Sanchez wrote: > > > Hello all, > > > > > > I am exploring the BER measurements in GNU Radio for different > > > modulations (I know Error Rate is deprecated) but i tried the > example > > > under the digital folder for BER measurement and I understood all > the > > > flowgraph. > > > > > > After this i wanted to change the modulation in the QT GUI so i > > added a > > > QT Gui Chooser as seen in the flowgraph below: > > > > > > Captura de pantalla de 2019-01-21 18-37-34.png > > > > > > > > > Attached is the flowgraph for reference. > > > > > > When i add this i expected that the Constellation would change > > > accordingly, but it does not when i choose a different > constellation > > > with the chooser, for instance if the default value in the chooser > is > > > QPSK it shows at the beginning: > > > > > > Captura de pantalla de 2019-01-21 18-44-25.png > > > > > > But If i switch in the same running time to 8-PSKn it shows: > > > > Everything - I mean everything - was configured with 8PSK > constellation > > data- and incorrectly - even the random number generator! > > > > I'm surprise you could see anything! > > > > Enclosed is the proper way to create a QPSK constellation. > > > > Work through the tutorials at > > > > https://wiki.gnuradio.org/index.php/Tutorials > > > > > > -- Cinaed > > > > > > > > > > Captura de pantalla de 2019-01-21 18-44-44.png > > > > > > > > > Which is not an 8-PSK modulation scheme. > > > > > > I would appreciate some help,. regarding what i am doing wrong for > > > choosing a Modulation through the QT GUI. > > > > > > Thanks in advance. > > > > > > Kind Regards. > > > > > > _______________________________________________ > > > Discuss-gnuradio mailing list > > > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > > > > -- > > Eng. Luis Felipe Albarracin > > Msc. Telematics / MBA > > PMP > > CCNA/CCDA/CCNP/CCDP/CCIP > > ITIL v3 Foundation > > "Die Grenzen meiner Sprache bedeuten die Grenzen meiner Welt" > > -- Eng. Luis Felipe Albarracin Msc. Telematics / MBA PMP CCNA/CCDA/CCNP/CCDP/CCIP ITIL v3 Foundation "Die Grenzen meiner Sprache bedeuten die Grenzen meiner Welt"
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