Saturday, February 16, 2019

Re: [Discuss-gnuradio] GFSK + STREAM MUX working wrong


Hello, here are the pictures. 
Actually I managed to solve this. But, still I don't know what was the problem.
It helped to use delay 113 samples.
Don't you know why is that? 

Petr

Od: Discuss-gnuradio <discuss-gnuradio-bounces+petr.horky=unob.cz@gnu.org> za uživatele Cinaed Simson <cinaed.simson@gmail.com>
Odesláno: sobota 16. února 2019 9:21:39
Komu: discuss-gnuradio@gnu.org
Předmět: Re: [Discuss-gnuradio] GFSK + STREAM MUX working wrong
 
On 2/14/19 12:17 PM, Horký Petr wrote:
> Hello everyone,
>
> I am creating signal with use of STREAM MUX. I want 128 samples of
> constant = 0 and two bytes modulated with GFSK mod. 2 bytes and 8
> samples/bit.... 2*8*8 = 128.
> (128, 128) these are the two values in the STREAM MUX.
>
> https://ctrlv.cz/XR97


>
> <https://ctrlv.cz/XR97>


>       
> CtrlV.cz | Nejrychlejší ScreenShot a PrintScreen online
> <https://ctrlv.cz/XR97>


> ctrlv.cz
> CtrlV.cz nabízí nejrychlejší ScreenShot a PrintScreen online jen pomocí
> webového prohlížeče a to bez doplňků.
>
> As you can see I modulate vector 255 and 0. Binary it is 11111111 00000000.
> But after quadrature demod (picture 2 - top graph). I get 00111111
> 11000000 as a result.
>
> https://ctrlv.cz/9vgX


>
>
> Do you have any idea what is wrong? And how to solve this problem? 
>
> Thank you.
>
> Petr

Post your grc and I'll take a look.

-- Cinaed

>
> <https://ctrlv.cz/9vgX>


>       
> CtrlV.cz | Nejrychlejší ScreenShot a PrintScreen online
> <https://ctrlv.cz/9vgX>


> ctrlv.cz
> CtrlV.cz nabízí nejrychlejší ScreenShot a PrintScreen online jen pomocí
> webového prohlížeče a to bez doplňků.
>
>
>
> <https://ctrlv.cz/XR97>
>
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>


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