Fake Block

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Name

test

Formula

blah

CAS number

{{{CAS}}}

(isomeric) SMILES

{{{SMILES}}}

InChI

{{{InChI}}}

standard InChI

{{{StdInChI}}}

hashed InChI

{{{InChIKey}}}

EC number

{{{EC}}}

ChemSpider ID

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[edit]

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[edit]

Implementing an FM broadcast band receiver is really easy.

Pluto FM fg.png

Source Files[edit]

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO

Previous Block Versions[edit]

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[edit]

Page
Image

Notes[edit]