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Michael Ossmann @mossmann

@bcrypt Most SDR platforms (except for special-purpose RFID ones like RFIDler or Proxmark) can't operate down to 125 kHz, but HackRF One can sniff it at close range with a loop of wire connected to the antenna port.
youtube.com/watch?v=repgaohMfI
Also it is possible to use a sound card plus a couple components on a breadboard, but I still haven't finished that article. :-)

· Tusky · 6 · 11
yan 🐇 @bcrypt

@mossmann ty!!

andrej @andrej

@mossmann @bcrypt Wow, that is super interesting. Thank you! I wonder if my rad1o badge can do the same. :thinking:

Michael Ossmann @mossmann

@andrej @bcrypt I'm pretty sure it would not work on rad1o due to its different RF front end.

Martin Müller @mot@gnusocial.de
@mossmann I'd love to read more about this!
Michael Ossmann @mossmann

@mot @bcrypt There is this ancient blog post about sound card LF RFID hacking that partially overlaps the article I have in the works:
ossmann.blogspot.com/2009/07/t

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