Re: [Discuss-gnuradio] Spurious samples in data set??

[Eric Blossom]

On Tue, Nov 06, 2007 at 12:46:02PM +0200, Aadil Volkwin wrote:
> Hi
> 
> Attached is code i've used to write a signal to file and subsequently to
> plot the samples.
> additionally i've attached the plot.
> 
> Can anyone tell me what may be causing the huge spike at the beginning of
> the data set?
> 
> thanks,
> 
> Aadil

Aadil,

There seem to be some issues with your acquisition code:

  (1) you're thowing away the the quadrature component of the complex
      baseband signal from the USRP.

  (2) you should be be using  fg.start() / fg.wait(), not fg.stop().
      It would be easier if you just used fg.run()

Eric