Re: [Discuss-gnuradio] USRP Digital Modulation - Loopeback Constellation

[CEL]

Hi Luis,
On Thu, 2018-06-14 at 12:29 +0200, Luis Felipe Albarracin Sanchez
wrote:
> Hello Marcus,
> 
> Thanks for the response,
> 
> I am not using an attenuator, because i font have one , i am only with my 
> cable, but i have meassured the Power before connecting to the RX in my USRP, 
> so it wont be bigger than the threshold of the USRP.

That's a dangerous game – you rely on never inadvertedly setting a high
RX or TX gain.

> 
> Thanks for the info, is there any guide where i can look all of the blocks 
> for Sync, phase tracking and shape filtering  implemented in a loopback for 
> 16QAM and other digital modulations (Flowgraphs examples)?

https://tutorials.gnuradio.org has a PSK example if you read from
chapter 1 to 7 :)

Best regards,
Marcus

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