Re: [Discuss-gnuradio] TVRX2 and GRC

[Jeff Long]

Dan,

If you execute the various "sudo sysctl ..." lines shown in the 
warnings, does it work any better? You can make these permanent.

  man sysctl.conf

- Jeff

On 10/03/2014 05:23 PM, Daniel Marlow wrote:
> Hello,
>
>      We have a new TVRX2, which we are using with a N200 USRP.   The
> N200 has a GPSDO.
>
>      The system seems to work fine when we test it with uhd_fft.
>   However, we are having trouble figuring out the correct configuration
> settings in for a custom GRC flow graph.    The graph in question is
> simple, consisting of just the USRP and an FFT GUI, as shown in the
> first attached screen shot.
>
>       As the second attached screen shot shows, however, the system does
> not run properly, producing a string of "DDDDD's", with the FFT window
> going dark.   The warning that reads "Sensor 'lo_locked' failed to lock
> within timeout on channel 0" seems like it might be related.
>
>       The 3rd and 4th screen shots show the setup menus for the USRP and
> the FFT GUI.
>
>       Any advice on what might be going wrong would be greatly appreciated.
>
> Sincerely,
> Dan Marlow
>
>
>
>
>
>
>
>
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