User:Sammp/Fake Block

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Sammp/Fake Block Option 1
Sammp/Fake Block Option 2
Example block image.png
Block Type {{{BlockType}}}
Initially Added GNU Radio 3.8.1
(October 24, 2021)
Documentation Version GNU Radio 3.8.1
(October 24, 2021)
Source Files
  • C++ files
TODO
  • Header files
TODO
  • Public header files
TODO
  • Block definition
TODO
Status {{{BlockStatus}}}

Generalized FM demodulation block with deemphasis and audio filtering. This block demodulates a band-limited, complex down-converted FM channel into the the original baseband signal, optionally applying deemphasis. Low pass filtering is done on the resultant signal. It produces an output float stream in the range of [-1.0, +1.0].

Parameters

Channel Rate
Incoming sample rate of the FM baseband (integer)
Audio Decimation
Input to output decimation rate (integer)
Deviation
Maximum FM deviation (default = 75000) (float)
Audio Pass
Audio low pass filter passband frequency (float)
Audio Stop
Audio low pass filter stop frequency (float)
Gain
Gain applied to audio output (default = 1.0) (float)
Tau
Deemphasis time constant (default = 75e-6), specify tau=0.0 to prevent deemphasis (float)

Example Flowgraph

Implementing an FM broadcast band receiver is really easy.

Pluto FM fg.png


Previous Block Versions

Below are the versions of this page pulled for different GNU Radio versions. The initial links and versions are automatically generated and may be updated if needed. Please add notes (including backport changes) underneath the links. Each item includes a link to the page text and the image because the page will not be using the older image (instead it will show the current version).

For GNU Radio 3.8.X

BlockDoc Page: GNU Radio Version 3.8.X

Block Doc Image:

Notes