CONGAFLOCK

Scope
CONGAFLOCK is a general purpose RF retroreflector intended for experimentation.

Status
A fully functional prototype was presented at DEF CON 22: https://www.defcon.org/html/defcon-22/dc-22-speakers.html#Ossmann

Ingredients
PCB: https://github.com/mossmann/retroreflectors/tree/master/CONGAFLOCK

Assembly Instructions
step 1: Assemble PCB
step 2: Connect two wires to PCB to serve as a dipole antenna (2.45 GHz recommended).
step 3: Connect PCB to ground and target signal.

Basic Usage Instructions
step 1: Transmit CW signal at frequency of installed antenna toward CONGAFLOCK with directional antenna.
step 2: Simultaneously receive reflected signal with another directional antenna.
step 3: AM demodulate the received signal to recover the target signal.

Credits
Michael Ossmann (@michaelossmann)
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