Re: [Discuss-gnuradio] Some guidance on working through Core concepts of GNU Radio

[Marcus D. Leech]

On 05/25/2014 09:39 PM, Shane MacPhillamy wrote:

I’m working through http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsCoreConcepts

I’ve created the flow graph:

I’m unsure on how to address the problem reported on Complex to Mag^2 as below, could you offer some pointers please?

Connection (

  Block - blocks_complex_to_mag_squared_0 - Complex to Mag^2(blocks_complex_to_mag_squared)

    Source - out(0)

  Block - blocks_file_sink_0 - File Sink(blocks_file_sink)

    Sink - in(0)

):

  Source IO size "4096" does not match sink IO size "8192”.

Thanks.

Cheers, Shane

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complex-to-mag**2 produces a *real* float output, and you're configuring your sink (or left it defaulted) to float-complex.  GRC will have turned
  the arrow *red* to emphasize that the output type of one block doesn't match the input type of another, further, under the errors dialog, it
  would have noted the same thing.

-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org