Texts
Event Correlation Engine
[2009]
My master's thesis on real-time correlation of events from hosts in a global network.
Yagi-Uda Antenna
[2009]
Creation of a directional wireless LAN antenna.
DAB Software Receiver
[2008]
Semester thesis on creating a DAB software receiver for GNU Radio.
GeekClock
[2007, German]
Building a binary LED clock with an Atmel MCU. This documents also discuss electronics basics.
Privacy - The Right to be Left Alone
[2006, German]
About data gathering by organisations and the government in Switzerland.
Formulary for Ham Radio
[2003, German]
Collection of formulas I wrote for the test to get my Ham license.
Presentations
Fixit
[2009, mostly German]
How to fix your electronic stuff when its broken.
ePass
[2009, German]
About electronic passports and attacks against them.
Cheating Time
[2006]
On the construction of a DCF77 transmitter to spoof the time signal.