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

[CEL]

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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