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Re: [Discuss-gnuradio] Delay determination between Tx and Rx signal for

From: CEL
Subject: Re: [Discuss-gnuradio] Delay determination between Tx and Rx signal for limesdr mini with help of gnu radio.
Date: Mon, 15 Jul 2019 14:56:53 +0000

So, first of all: 

never use "Throttle" in a flow graph with hardware. 
In fact, GRC will *scream* at you that you shouldn't be doing that! 

Then: I can't claim to have any knowledge of the limeSDR driver, but
unless that driver specifically allows you to start the TX and RX
streaming at the exact same instance: That delay is not a deterministic

Best regards,

On Mon, 2019-07-15 at 16:46 +0200, Md. Atiqur Rahman wrote:
> Hello Guys, I am having trouble to find the proper delay point between Rx and 
> Tx signal while running the qpsk modulation scheme on gnu radio to my Limesdr 
> mini board. While I am running the program through limesdr, I realize that it 
> has a greater delay between (as expected). However, until now I am unable to 
> find the proper amount of delay. I am changing the range of the delay from 
> gui range(int type) to find the delay which will give me the synchronized Rx 
> and Tx so that I could ensure that there is no missing data at the receiver 
> side. 
> I attach the file here in this email. Hope anybody would like to help. Thanks 
> in advance.
> Sincerely,
>  Atiqur 
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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