NBFM Receive: Difference between revisions

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(Created page with "Category:Block Docs Category:Stub Docs This is the template for the "Page-per-block Docs". This first section should describe what the block...")
 
(Corrected obvious copy-paste mistake. Quadrature rate for the RECEIVE block is the INPUT sample rate. and I saw this mistake also exists in the python block definition on GitHub ;).)
 
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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Narrow Band FM Receiver.
This is the template for the [[:Category:Block_Docs|"Page-per-block Docs"]].  This first section should describe what the block does and how to use it, using however many paragraphs necessary.  Note that the title of the wiki page should match the block's name in GRC, i.e. the one defined in the block's .grc file.  Look at the [[FFT]] Block for a good example.


As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
Takes a single complex baseband input stream and produces a single float output stream of audio sample in the range [-1, +1].


== Parameters ==
== Parameters ==
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>


; Param 1 (''R'')
; Audio rate: Sample rate of audio stream, >= 16k (integer)
: Description of parameter, provide any tips or recommended values. Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
; Quadrature rate: Sample rate of input stream (integer). Must be an integer multiple of Audio rate.
 
; Tau: Preemphasis time constant (float)
; Param 2
; Max deviation (''R''): Maximum deviation in Hz (float)
: blah blah blah


== 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.
This flowgraph shows a NBFM Receive block in a working 2 meter receiver.


== Source Files ==
[[File:FunCube_2_meter_NB_FM_fg.png|800px]]


; C++ files
[[File:FunCube_2_meter_NB_FM_out.png|800px]]
: [https://github.com/gnuradio/gnuradio TODO]


; Header files
== Source Files ==
: [https://github.com/gnuradio/gnuradio TODO]


; Public header files
; Python files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-analog/python/analog/nbfm_rx.py]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-analog/grc/analog_nbfm_rx.block.yml]

Latest revision as of 19:31, 16 April 2022

Narrow Band FM Receiver.

Takes a single complex baseband input stream and produces a single float output stream of audio sample in the range [-1, +1].

Parameters

(R): Run-time adjustable

Audio rate
Sample rate of audio stream, >= 16k (integer)
Quadrature rate
Sample rate of input stream (integer). Must be an integer multiple of Audio rate.
Tau
Preemphasis time constant (float)
Max deviation (R)
Maximum deviation in Hz (float)

Example Flowgraph

This flowgraph shows a NBFM Receive block in a working 2 meter receiver.

FunCube 2 meter NB FM fg.png

FunCube 2 meter NB FM out.png

Source Files

Python files
[1]
Block definition
[2]
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