# CGRAN -- come share your GNU Radio / USRP projects!

**URL:** <https://www.ruby-forum.com/t/cgran-come-share-your-gnu-radio-usrp-projects/201618>\
**Category:** GNU Radio\
**Created:** [January 11, 2011, 8:20pm UTC](https://www.ruby-forum.com/t/cgran-come-share-your-gnu-radio-usrp-projects/201618 "2011-01-11T20:20:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\
**Post date:** [January 11, 2011, 8:20pm UTC](https://www.ruby-forum.com/t/cgran-come-share-your-gnu-radio-usrp-projects/201618/1 "2011-01-11T20:20:12Z")

</div>

Hi all,

CGRAN has seen a little bit of a lull recently, either due to too many  
holiday cookies or too many cases of the common cold 😉

Considering there is always a churn of GNU Radio users, I figured a  
“ping”  
might help!

## What is it?

The Comprehensive GNU Radio Archive Network (CGRAN) is a _free open  
source  
repository for 3rd party GNU Radio applications_ that are not officially  
supported by the GNU Radio project [http://gnuradio.org/trac/wiki](http://gnuradio.org/trac/wiki).  
CGRAN  
provides a subversion repository for users to develop or submit new  
applications, and wiki access for full project documentation. Trac (our  
web  
interface) provides unique features such as a browser for the subversion  
repository and a ticket system for users to file issues with projects in  
CGRAN. CGRAN is a great way to find GNU Radio projects to use, build  
from,  
or gain exposure to a project you have built.

## Where is it?

[https://www.cgran.org/](https://www.cgran.org/)

## Some Recent Projects

Mode S receiver [https://www.cgran.org/wiki/gr-air-modes](https://www.cgran.org/wiki/gr-air-modes) - A Mode  
S/ADS-B  
receiver to track commercial aircraft from transponder reports  
Gen2 RFID Listener [https://www.cgran.org/wiki/Gen2Listener](https://www.cgran.org/wiki/Gen2Listener) - A Gen2  
RFID  
Listener for developing distributed RFID networks and monitoring  
systems.  
Dynamic Spectrum Sharing [https://www.cgran.org/wiki/UCSBJello](https://www.cgran.org/wiki/UCSBJello) -  
Implementation of Papyrus/Jello, a dynamic spectrum sharing system based  
on  
distributed OFDMA.