On 2022-07-08 19:13, Joseph Maloyan wrote:
Hello,

I am currently working with Ettus N210 and GNU Radio. I have a signal generator hooked up to a Basic RX daughterboard that is sending a 25 Mhz signal at -47 dBm. I followed the instructions here <https://wiki.gnuradio.org/index.php?title=Guided_Tutorial_Hardware_Considerations>. I attached the grc file as well.

When I hit play, the graph that is output is nothing but a flat line set at a relative gain of 0. I am expecting some spike at 25 Mhz plus some noise.

What exactly is the cause of this problem and what can I do to start troubleshooting? Is there something wrong with the board or the way I am configuring it or with the gnuradio flow chart?

Thanks,
Joe
Could you maybe do a screen grab of the spectrum display?

Which version of UHD are you using?   Which version of Gnu Radio?

What does:

uhd_usrp_probe --args type=n200

produce?

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