Re: [Discuss-gnuradio] using sig_source_c on a USRP2

[Charles Brain]

Hello again Brian,

Well here is the screen shot.
http://www.chbrain.dircon.co.uk/usrp2_signal.jpg

The sample rate was set to 20 M, the frequency to 5 MHz
and the interpolation to 20. The WBX carrier was set to 1 GHz

I am sure I have done something wrong

- Charles



----- Original Message ----- 
From: "Brian Padalino" <address@hidden>
To: "Charles Brain" <address@hidden>
Cc: <address@hidden>
Sent: Sunday, February 21, 2010 7:55 PM
Subject: Re: [Discuss-gnuradio] using sig_source_c on a USRP2


> You should definitely be able to see something at 1.001GHz, but any
> residual DC offset will also cause a spike at 1.000GHz when using a
> vector modulator.
>
> What's your resolution bandwidth set at on your spectrum analyzer?
> Can you post a link to a screen shot or two?
>
> Brian