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#1 2014-02-06 17:41:53

PM
Contributor
Registered: 2011-08-15
Posts: 13

ProxmarkIII and 3.25 Mhz : Is it possible with custom antenna ?

Hello.

I have strange cards I found in France. I tried to put them in the field of my LF and HF antennas but the voltage drop (HF) is very low (-0.5V).
I suspect these cards to be in the 3.25 Mhz frequency, and I would test it by building a new antenna for my Proxmark.

Is it possible ? I guess I have to rewrite some parts of the firmware if I want to do that, or is it just impossible ?

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#2 2014-02-07 15:25:49

vivat
Contributor
Registered: 2010-10-26
Posts: 332

Re: ProxmarkIII and 3.25 Mhz : Is it possible with custom antenna ?

How do you know it's working frequency? Did you perform frequency measurement with oscilloscope? Maybe it would be easier to buy reader that supports your tag?
Also look at this:
http://www.proxmark.org/forum/viewtopic.php?id=123

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