Hi,

Input signal level is ok.The scope pictures was not generated by  
usrp_oscope.py. What is the program used to generate it ? Test The signal with 
usrp_oscope.py

Firas

Aadil Volkwin <[EMAIL PROTECTED]> wrote: Hi, 

I've updated the scope screenshot on the website. Two shots are available, 
notice there seems to be some kind of modulation??? I've tested the input 
signal with an external scope and the input signal is fine. I don't know why 
the usrp scope is "misbehaving" 

The input signal level is set at -16.02dBm

Aadil

On 10/11/2007, Firas abbas <[EMAIL PROTECTED] > wrote:Hi,

Use center frequency =0 in the usrp scope. If you use center frequency = 250K, 
you will shift the signal to 0 Hz. 

What is your signal input level in dBm ?

Firas

Aadil Volkwin < [EMAIL PROTECTED]> wrote: Hi, 

Firstly my apologies for posting known quantities, I guessed that members would 
like to see in what way I tinkered with usrp_rx_cfile.py. point taken though. 

Screen shots of the MATLAB plots as well as the usrp_oscop.py output can be 
found at: 

 https://rrsg.ee.uct.ac.za/members/aadil/

I'm pretty sure the MATLAB is correct.

I have upped the input freq to 250KHz, now attempting a square wave (in 
desperation) and  
set the options.freq to 0 in ---> self.u.tune(0, self.subdev, options.freq)

I'm Still not getting  sensible plots.

Thanks again, 

Aadil
 





 


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