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[[Category:Guided Tutorials]]
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= Tutorial: GNU Radio Companion =
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== Objectives ==
 
== Objectives ==
  
 
* Create flowgraphs using the standard block libraries
 
* Create flowgraphs using the standard block libraries
 
* Learn how to debug flowgraphs with the instrumentation blocks
 
* Learn how to debug flowgraphs with the instrumentation blocks
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* Understand how sampling and throttle works in GNU Radio
 
* Learn how to use the documentation to figure out block's functionality
 
* Learn how to use the documentation to figure out block's functionality
  
 
== Prerequisites ==
 
== Prerequisites ==
  
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* Basic knowledge of git
 
* [[InstallingGR|GNU Radio 3.8.0.0 or later]]
 
* [[InstallingGR|GNU Radio 3.8.0.0 or later]]
 
* [[Guided_Tutorial_Introduction|A brief introduction to GNU Radio, SDR, and DSP]]
 
* [[Guided_Tutorial_Introduction|A brief introduction to GNU Radio, SDR, and DSP]]
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-----
  
 
== Getting to Know the GRC ==
 
== Getting to Know the GRC ==
  
We have seen in [[Guided_Tutorial_Introduction|A brief introduction to GNU Radio, SDR, and DSP]] that GNU Radio is a collection of tools that can be used to develop radio systems in software as opposed to completely in hardware. In this tutorial, we start off simply and explore how to use the GNU Radio Companion (GRC), GNU Radio's graphical tool, to create different tones. We should keep in the back of our mind that GRC was created to simplify the use of GNU Radio by allowing us to create python files graphically as opposed to creating them in code alone (we will discuss this more later).
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We have seen in Tutorial 1 that GNU Radio is a collection of tools that can be used to develop radio systems in software as opposed to completely in hardware. In this tutorial, we start off simple and explore how to use the GNU Radio Companion (GRC), GNU Radio's graphical tool, to create different tones. We should keep in the back of our mind that GRC was created to simplify the use of GNU Radio by allowing us to create python files graphically as opposed to creating them in code alone (we will discuss this more later).
  
The first thing to cover is the interface. There are five parts: <span style="color:gray">Library</span>, <span style="color:red">Toolbar</span>, <span style="color:green">Terminal</span>, <span style="color:blue">Workspace</span> and <span style="color:rgb(255,200,0)"> variables.
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The first thing to cover is the interface. There are five parts: <span style="color:gray">Library</span>, <span style="color:red">Toolbar</span>, <span style="color:green">Terminal</span>, <span style="color:blue">Workspace</span> and <span style="color:yellow"> variables.
  
 
[[File:unity-2d-shell_008.png|600px|]]
 
[[File:unity-2d-shell_008.png|600px|]]

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