Re: [Discuss-gnuradio] Any example to show me how to use the " QAM Demod " module?

[eric.zeng]

Hi, Mueller

Thanks, I'll try the /usr[/local]/share/gnuradio/examples/digital/packet 
example.

Thanks very much!


On 2018年10月08日 19:01, eric.zeng wrote:
> Hi, Mueller
>
> Thanks for your rely!
>
> Are there any good gnuradio QAM mod/demod examples (Do not use QAM 
> modules) to learn ?
>
> Thanks！
>
> On 2018年10月08日 18:35, Müller, Marcus (CEL) wrote:
> > Dear Eric,
> >
> > the QAM Demod and Mod blocks are deprecated. Thus, please don't use
> > them! We can't help you if anything doesn't work, and they randomly
> > drop data.
> >
> > > I confused about the output data format of the QAM Demod module and
> > how to deal with them.
> >
> > That output is just the bits contained in the QAM modulation.
> >
> >
> > I can't with a good conscience tell you what *not* to use without
> > telling you *what* to use. So:
> >
> > go into your /usr[/local]/share/gnuradio/examples/digital/packet.
> > You'll find packet_loopback_hier. By default, it's configured to be a
> > QPSK, but you can change the Constellation object to your heart's
> > delight. Try with the default first! That's a 4-QAM right there ;)
> >
> > Best regards,
> > Marcus
> >
> >
> > On Mon, 2018-10-08 at 16:52 +0800, eric.zeng wrote:
> > > Hi， ALL
> > > Are there any good examples or documents to teach me how to use the 
> > > " QAM Demod " module?
> > > I confused about the output data format of the QAM Demod module and 
> > > how to deal with them.
> > > And why QAM demod do not output a complex data?
> > > I also found the description of the "QAM Demod" block is the same as 
> > > "QAM Mod" module.
> > > Any documents tell us how the QAM demod works?
> > > Thanks very much!
> > >
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