[Discuss-gnuradio] help generating frequency offset

[George Nychis]

Hi all,

I'm attempting to generate frequency offset in a script that is adding 
some channel features:
  http://cyprus.cmcl.cs.cmu.edu/matched_filter/gen_noise_samples.py

The frequency offset is specified, for which the original signal is 
mixed and then the offset signal is added with the noise.

But I'm not seeing the appropriate frequency offset.  If I specify a 
frequency offset of 100Hz, I'm only seeing a single point shift, all 
other points are the same as if there is no offset:
  http://cyprus.cmcl.cs.cmu.edu/matched_filter/graphs/freq_offset.jpg

I'd greatly appreciate any feedback.

Thanks!
George