“We plan on producing a run of Proxmark3 LF antennas soon and we’ll update this page when they are available.”
Is this still being worked on @amal?
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it is… @TomHarkness is leading that endeavor.
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Awesome can’t wait! Thanks Amal and Tom.
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This is well underway and the proxmark team and I have been smashing through the final stages of the design. Things were slightly delayed due to life getting in the way a little on my end. I’ll try and update the community soon with some preview pics asap! The final coil design is nothing short of amazing and I have tested it like mad.
Here is a sneak peek at one of the coil test rigs (the final design will obviously be much neater - this board is purely for testing):
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Will these be compatible with the Chinese PM3 Easy boards or only the official ones?
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@TomHarkness, is this Proxmark LF antenna that you’re talking about what we’ve been waiting for to be able to safely and reliably read/write to the xEM like in this video? If so, any idea of when you guys may release it?
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Only the rdv4.0 at this stage. Making them for the knock off version is tricky as the tuning components vary from knock-off to knock-off so I could never make one antenna that is tuned perfectly for all hardware. Once this is done I have an idea for the pm3 easy boards that will incorporate a tuning pot. Should be easy enough.
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Yes. I hope within a few months. Fingers crossed that everything goes to plan! 
Ok. Thanks for the quick response. 
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No worries - as I said above, life has caused some setbacks on this project and others but full steam ahead at this stage!
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Thanks for the update, this is great news. I’m eagerly awaiting a new lf proxmark antenna, as the ones I have currently are pretty fiddly.
@TomHarkness, do you have any estimate as to what kind of cost we’re looking at for this on release? I only ask because if it’s pretty high, I’d like to start saving up now so I can be prepared to get it at release.
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Hey @TomHarkness I’m going to make this thread the defacto update thread for LF antenna coils for the proxmark3 rdv4 
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Sweet sounds good! I’ll keep this thread updated as things progress.
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This is quite exciting… I’ve got one xEM tag in my hand that has stopped responding to almost all Proxmark commands. It will still beep on a long-range HID reader, but I have zero luck nowadays interacting with it using the Proxmark, so a new and improved antenna for this would be incredibly useful!
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Woah, I didn’t know the great Deviant was here!
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This is awesome. Hopefully the antenna will make it to market.
But… that test board is pretty cool with switches for different resistance? Where did that come from?
That’s a prototype for testing 
it was designed by Rfid Researchers Group and myself for my antenna R&D and produced by a factory in Shenzhen.
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So guys… I’m extremely excited to say that I will receive first production ferrite core antenna + pcb samples from Shenzhen in about 15 days for testing.
Also trying to figure a neat way to make these duel frequency on single ferrite rod so that we don’t need seperate antenna boards for 125 / 13.56. However this may be a v2 thing,
Peace
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nice will be looking out for more updates keep up the great work
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