[Discuss-gnuradio] USRP producing samples larger than 2^8

[Chris Stankevitz]

Hi,

Should I get samples with a magnitude > 128 from the USRP no FPGA gain? 
 I believe the answer is no.  Take a look at these plots of the data I 
am getting (plot of real portion only):

http://img157.imageshack.us/img157/8648/plot1gi6.gif

http://img245.imageshack.us/img245/8528/plot2fp1.gif

I collected the data using this method:

./usrp_rx_cfile.py -d 16 -f 1575420000 -g 0 -N 4000000 file.dat

Furthermore, I created a test jig which wrote USRP output to stdout and 
verified these spikes are not in the binary file or the binary file 
reader.  I'm using the DBSRX with a GPS antenna and a low noise amplifier.

Thank you!

Chris