Re: [Discuss-gnuradio] TX/RX with USRPN200 and GNURadio

[Carlos Alberto Ruiz Naranjo]

I have this flowgraph:

sampleTX is a recorded signal of 5 minutes.

​

2014-10-20 9:23 GMT+02:00 Martin Braun <address@hidden>:

> I have Ubuntu 12.04 in this PC
> http://www.amazon.com/HP-FF825AV-Workstation-2-8GHz-nVidia/dp/B00B90WIGE
> (Quad Core and 12GB RAM).
> With the scheme with loop I have:
>
> Generating: "/home/caruiz_ext/Escritorio/generadoresGNU/top_block.py"
>
> Generating: "/home/caruiz_ext/Escritorio/generadoresGNU/top_block.py"
>
> Executing: "/home/caruiz_ext/Escritorio/generadoresGNU/top_block.py"
>
> linux; GNU C++ version 4.6.3; Boost_105300; UHD_003.006.002-64-g92b0b7ab
>
> -- Opening a USRP2/N-Series device...
> -- Current recv frame size: 1472 bytes
> -- Current send frame size: 1472 bytes
> Using Volk machine: sse4_2_64
> UU[..more U...]
>
> What is the problem?

Maybe there is none? You don't write anything about your rates etc., but
U means underrun, which in turn means your computer isn't producing data
fast enough (or on time).

M

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