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I inherited a proxmark3 and LF antenna. I was able to connect it to my windows 7 system and upgrade the os, fpga, and bootimage to Win 2010. That was the easy part. When I run the command "hw tune" with the antenna that was purchased with the device I get the following:
proxmark3> hw tune
#db# Measuring antenna characteristics, please wait.
proxmark3>
# LF antenna: 0.00 V @ 125.00 kHz
# LF antenna: 0.00 V @ 134.00 kHz
# LF optimal: 0.00 V @ 12000.00 kHz
# HF antenna: 0.00 V @ 13.56 MHz
# Your LF antenna is unusable.
# Your HF antenna is unusable.
proxmark3>
I thought that the port maybe bad so using the instructions on how to build a cheap HF antenna out of a usb cable, I formed the 3 loops and connected it to the test pads 3 and 4. Still got the same results. Hoping someone out there might have a thought or two on this.
Thank you for your time, sorry for the long post.
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Thanks for the suggestions. Sorry I thought I posted an update yesterday but must of shutdown my browser without submitting it. No matter what I do to the antenna hf tune comes up all 0s. I don't need a tag nearby to get a reading right? What I was reading in the forums is that the tag draws power from the antenna, so the voltage should be higher with no tag around.
I haven't soldered anything in years, but I looked at the pads and didn't see any cracks. Is there any commands that would tell me if the circuit isn't at least complete? i.e. looking for a bad connection.
I was told it was working before so I might just knock the OS back down to July 2009 code and see if that helps any.
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