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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
<meta content="Pentabarf" name="generator"/>
<meta content="2011-04-24" name="DC.date"/>
<title>EH2011: Sniffer fuer die TETRA-Luftschnittstelle</title>
<link type="text/css" href="../../style.css" rel="Stylesheet" media="screen,print"/>
</head>
<body>
<div class="noprint" id="conference-logo">
<a href="http://easterhegg2011.hamburg.ccc.de">
<img alt="Easterhegg 2011" src="../../images/conference-128x128.png"/>
</a>
</div>
<div class="noprint" id="menu">
<ul>
<li>
<a href="../../index.de.html">
<span class="normal">Index</span>
</a>
</li>
<li>
<a href="../../day_2011-04-22.de.html">
<span class="normal">Karfreitag - 2011-04-22</span>
</a>
</li>
<li>
<a href="../../day_2011-04-23.de.html">
<span class="normal">Ostersamstag - 2011-04-23</span>
</a>
</li>
<li>
<a href="../../day_2011-04-24.de.html">
<span class="normal">Ostersonntag - 2011-04-24</span>
</a>
</li>
<li>
<a href="../../day_2011-04-25.de.html">
<span class="normal">Ostermontag - 2011-04-25</span>
</a>
</li>
<li>
<a href="../../speakers.de.html">
<span class="normal">Referenten</span>
</a>
</li>
<li>
<a href="../../events.de.html">
<span class="normal">Veranstaltungen</span>
</a>
</li>
<li>
<ul class="track">
<li class="track-hacking">
<a href="../../track/Hacking/index.de.html">
<span class="normal">Hacking</span>
</a>
</li>
<li class="track-administration">
<a href="../../track/Administration/index.de.html">
<span class="normal">Administration</span>
</a>
</li>
<li class="track-gesellschaft">
<a href="../../track/Gesellschaft/index.de.html">
<span class="normal">Gesellschaft</span>
</a>
</li>
<li class="track-making">
<a href="../../track/Making/index.de.html">
<span class="normal">Making</span>
</a>
</li>
<li class="track-historylessons">
<a href="../../track/history lessons/index.de.html">
<span class="normal">history lessons</span>
</a>
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<a href="../../track/Meta/index.de.html">
<span class="normal">Meta</span>
</a>
</li>
</ul>
</li>
</ul>
</div>
<div id="content">
<p class="release">EH2011 - 21</p>
<p class="intro">
<strong>Easterhegg 2011</strong>
<br/>
<em>the ccc family event</em>
</p>
<div class="section vevent" id="event">
<div id="infobox">
<table>
<tr>
<th colspan="2">Referenten</th>
</tr>
<tr>
<td>
<a href="../../speakers/62.de.html">
<img height="32" width="32" src="../../images/person-62-32x32.png"/>
</a>
</td>
<td>
<a href="../../speakers/62.de.html">Harald Welte</a>
</td>
</tr>
</table>
<table>
<tr>
<th colspan="2">Programm</th>
</tr>
<tr>
<td class="keyword">Tag</td>
<td class="value">Ostersonntag - 2011-04-24</td>
</tr>
<tr>
<td class="keyword">Raum</td>
<td class="value location">Aula</td>
</tr>
<tr>
<td class="keyword">Beginn</td>
<td class="value dtstart" title="2011-04-24T20:30:00+02:00">20:30</td>
</tr>
<tr>
<td class="keyword">Dauer</td>
<td class="value duration" title="P01H00M00S">01:00</td>
</tr>
<tr>
<th colspan="2">Info</th>
</tr>
<tr>
<td class="keyword">ID</td>
<td class="value" title="4343@EH2011@pentabarf.org">4343</td>
</tr>
<tr>
<td class="keyword">Veranstaltungstyp</td>
<td class="value">Vortrag</td>
</tr>
<tr>
<td class="keyword">Track</td>
<td class="value">Hacking</td>
</tr>
<tr>
<td class="keyword">Sprache der Veranstaltung</td>
<td class="value">deutsch</td>
</tr>
</table>
<table>
<tr>
<th colspan="2">Feedback</th>
</tr>
<tr>
<td class="feedback" colspan="2">
Haben Sie diese Veranstaltung besucht? <br/>
<a href="https://cccv.pentabarf.org/feedback/EH2011/event/4343.de.html">Feedback abgeben</a>
</td>
</tr>
</table>
</div>
<h1 class="title summary">Sniffer fuer die TETRA-Luftschnittstelle</h1>
<p class="subtitle"></p>
<img class="event-image" src="../../images/event-4343-128x128.png"/>
<div class="abstract">
<p>Das digitale Funksystem TETRA findet weite Verbreitung, nicht nur im BOS-Netz sondern bei zahlreichen Privatfirmen wie z.B. an Flughaefen.</p>
<p>Mit ein bisschen Lektuere der Spezifikation und vorhandenen Tools wie gnuradio kann man sich in relativ kurzer Zeit einen "Software Defined Radio" Sniffer fuer die Luftschnittstelle bauen, welcher dann saemtliche Signalisierungsnachrichten und Nutzdaten (z.B. Sprache) mitschneidet. Interpretieren
kann man die meisten Daten natuerlich nur bei unverschluesselten Netzen - welche aber offensichtlich aus Kostengruenden relativ haeufig vorkommen.</p> </div>
<div class="description">
</div>
<div class="links">
<h2>Links</h2>
<ul>
<li>
<a href="http://tetra.osmocom.org/" rel="bookmark">Project homepage</a>
</li>
</ul>
</div>
<div id="navigation">
<a href="../../track/Hacking/4346.de.html">
<span class="previous" title="hacking Megamos">&lt;&lt;&lt;</span>
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