Difference between revisions of "WBFM Receive PLL"

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(add example flowgraph)
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== Example Flowgraph ==
 
== Example Flowgraph ==
  
Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI.  Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
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This flowgraph shows the stereo version of the WBFM receiver. The flowgraph file can be found in https://github.com/duggabe/gnuradio/blob/issue3593/gr-analog/examples/USRP_FM_stereo.grc
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[[File:USRP_FM_stereo_pll.png|803px]]
  
 
== Source Files ==
 
== Source Files ==

Revision as of 20:03, 15 July 2020

Hierarchical block for demodulating a broadcast FM signal.

The input is the downconverted complex baseband signal (gr_complex).

The output is the demodulated audio (float)

Compared to WBFM Receive, this one does a full stereo demodulation.

Parameters

Quadrature Rate
Input sample rate of complex baseband input. (float)
Audio Decimation
How much to decimate quad_rate to get to audio. (integer)

Example Flowgraph

This flowgraph shows the stereo version of the WBFM receiver. The flowgraph file can be found in https://github.com/duggabe/gnuradio/blob/issue3593/gr-analog/examples/USRP_FM_stereo.grc

USRP FM stereo pll.png

Source Files

Python files
[1]
Block definition
[2]