Re: Sending a signal to a USRP N200

[Paul Boven]

Hi Isaac,

On 9/6/21 6:02 PM, isaac mario tupac davila wrote:
> I'm Isaac. I am trying to discover what is happening with my USRP N200. 
> I'm sending a signal of 100mVpp and 1MHz from a signal generator to 
> channel RF 2 of my USRP N200 but I receive a 0v signal and a constant 
> -230db (if I see it in a FFT block).

Please include which RX daughterboard you are using with the N200? What 
is RF2 connected to internally in the USRP? Does channel RF1 work for you?

In your flowchart, you're using a center frequency of 1 MHz with a 
sampling rate of 10 MS/s, which is a bit odd, although it shouldn't 
prevent you from seeing the signal.

Your scope plot and FFT plot look as if you're not receiving anything, 
not even noise.

You should probably first of all verify whether your PC can even talk to 
the USRP properly, e.g. by running 'uhd_find_devices' and 'uhd_usrp_probe'.

Regards, Paul Boven.