Re: [Discuss-gnuradio] Rx to tx GNU Radio

2018-05-13 Thread Yeo Jin Kuang Alvin (IA)
Hi,

I’ve attached the GRC file. I am using USRP B210, I connected the RF cable from 
tx to a 30 dB attenuator back to the rx and then another RF cable from another 
tx to the Spectrum Analyzer. I am using GNU Radio Companion 3.7.9 .

Thank you in advanced!

From: Brent Stapleton [mailto:brent.staple...@ettus.com]
Sent: Saturday, 12 May 2018 12:59 AM
To: Yeo Jin Kuang Alvin (IA)
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Rx to tx GNU Radio

Hi Yeo,

Could you provide more details? Providing a GRC file would be helpful. What 
kind of USRP are you using? What physical connections do you have on the 
device? What version of GNU Radio are you using? From a high level, you should 
be able to TX and RX simultaneously without error.

Best Regards,
Brent

On Fri, May 11, 2018 at 1:02 AM, Yeo Jin Kuang Alvin (IA) 
mailto:yjink...@dso.org.sg>> wrote:
Hi all,

I’ve seen some examples and managed to do a tx and rx loopback to file using 
both C++ and GNU Radio. However, now I would like to receive and transmit the 
same signal out. I tried connecting USRP Source block to USRP Sink, and I see 
lots of “LL” which is late packets. Anyone has any idea on how to do a 
receive and transmit the same signal out in real time using GNU Radio Companion?

Thank you in advanced!

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Re: [Discuss-gnuradio] Rx to tx GNU Radio

2018-05-11 Thread Brent Stapleton
Hi Yeo,

Could you provide more details? Providing a GRC file would be helpful. What
kind of USRP are you using? What physical connections do you have on the
device? What version of GNU Radio are you using? From a high level, you
should be able to TX and RX simultaneously without error.

Best Regards,
Brent

On Fri, May 11, 2018 at 1:02 AM, Yeo Jin Kuang Alvin (IA) <
yjink...@dso.org.sg> wrote:

> Hi all,
>
>
>
> I’ve seen some examples and managed to do a tx and rx loopback to file
> using both C++ and GNU Radio. However, now I would like to receive and
> transmit the same signal out. I tried connecting USRP Source block to USRP
> Sink, and I see lots of “LL” which is late packets. Anyone has any idea
> on how to do a receive and transmit the same signal out in real time using
> GNU Radio Companion?
>
>
>
> Thank you in advanced!
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
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[Discuss-gnuradio] Rx to tx GNU Radio

2018-05-11 Thread Yeo Jin Kuang Alvin (IA)
Hi all,

I've seen some examples and managed to do a tx and rx loopback to file using 
both C++ and GNU Radio. However, now I would like to receive and transmit the 
same signal out. I tried connecting USRP Source block to USRP Sink, and I see 
lots of "LL" which is late packets. Anyone has any idea on how to do a 
receive and transmit the same signal out in real time using GNU Radio Companion?

Thank you in advanced!
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