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#1 2018-08-30 06:15:51

streetwitch
Contributor
Registered: 2018-08-30
Posts: 13

Low Frequency RFID Antennas

Hi, so I got my Proxmark3 in the mail, and got it up in running.  I've cloned my first RFID badge already.  There is another USB port on my Proxmark3 besides the one connected to my Kali Linux laptop, and I'm pretty sure it is for an antenna.  So I've been searching through all the antennas people make, but I would actually like to buy one.  I've found a number of sites selling RFID antenna's for anywhere between $100 & $200 dollars. None of them however have a USB connection.  So, I'm looking for an antenna to get long range LF signals from RFID tags, and don't want to make my own.  If anyone can point me into the right direction it would be cool.  Also, am I going to need extra power to amplify the signal & where can I get that?
Thanks

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#2 2018-08-30 15:01:49

app_o1
Contributor
Registered: 2013-06-22
Posts: 238

Re: Low Frequency RFID Antennas

There are a lot of proxmark hardware versions. Which one do you have?
The best LF antenna I have is the one I built myself using advises from other users.
If you want the hardcore level sh*t, look here: http://ww1.microchip.com/downloads/en/AppNotes/00710c.pdf
Otherwise, have a look here:
http://www.proxmark.org/forum/viewtopic.php?id=1992
http://www.proxmark.org/forum/viewforum.php?id=11
http://www.proxmark.org/forum/viewtopic.php?id=90
https://code.google.com/archive/p/proxmark3/wikis/Antennas.wiki
http://www.proxmark.org/forum/viewtopic.php?id=264
http://www.proxmark.org/forum/search.php?search_id=832885412

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#3 2018-08-30 18:22:22

streetwitch
Contributor
Registered: 2018-08-30
Posts: 13

Re: Low Frequency RFID Antennas

proxmark3> hw version
Prox/RFID mark3 RFID instrument         
bootrom: master/v3.0.1-397-gd62f7ba-suspect 2018-08-30 02:24:26
os: master/v3.0.1-397-gd62f7ba-suspect 2018-08-30 02:24:27
fpga_lf.bit built for 2s30vq100 on 2015/03/06 at 07:38:04
fpga_hf.bit built for 2s30vq100 on 2018/08/13 at 21:22:51         
uC: AT91SAM7S256 Rev D         
Embedded Processor: ARM7TDMI         
Nonvolatile Program Memory Size: 256K bytes. Used: 194796 bytes (74%). Free: 67348 bytes (26%).         
Second Nonvolatile Program Memory Size: None         
Internal SRAM Size: 64K bytes         
Architecture Identifier: AT91SAM7Sxx Series         
Nonvolatile Program Memory Type: Embedded Flash Memory

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#4 2018-08-30 19:55:11

streetwitch
Contributor
Registered: 2018-08-30
Posts: 13

Re: Low Frequency RFID Antennas

If I were to build my own antenna what kind of range would I get?  I'm looking at RFID antennas being sold online, and it seems I would only need a antenna cable to usb converter to plug into the Proxmark3.  I would rather pay for something top of the line than make a home brew antenna.  Can you help?

Last edited by streetwitch (2018-08-30 19:55:57)

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#5 2018-08-31 04:06:48

streetwitch
Contributor
Registered: 2018-08-30
Posts: 13

Re: Low Frequency RFID Antennas

Would this work with the proxmark3 version I have?

https://lab401.com/products/proxmark-3-rdv4-long-range-hf-antenna-1

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#6 2018-08-31 09:39:59

Tom5ive
Contributor
Registered: 2017-09-18
Posts: 35

Re: Low Frequency RFID Antennas

IF you have x2 usb connectors on the board you have a FAKE proxmark3 from Aliexpress or similar. The 2nd USB port is not for an antenna lol, its just another USB port connected to the same place. Get a multimeter and check the continuity between the two ports if you don't believe...

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#7 2018-08-31 09:44:37

Tom5ive
Contributor
Registered: 2017-09-18
Posts: 35

Re: Low Frequency RFID Antennas

I recommend getting the RDV4. Range is hugely improved and there are more antenna options.

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#8 2018-09-01 02:59:02

Tom5ive
Contributor
Registered: 2017-09-18
Posts: 35

Re: Low Frequency RFID Antennas

Check this for some useful info:

https://forum.dangerousthings.com/t/xem-cloning-emulation-modes-and-the-perils-of-chinese-cloners/1547/10

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#9 2018-09-01 06:23:43

iceman
Administrator
Registered: 2013-04-25
Posts: 4,850
Website

Re: Low Frequency RFID Antennas

..it could also be the green pcb version of pm3,  from RyscCorp,   which alibaba is full of ads for.  Also seen with blue pcb,  or the modded radiowar black pcb..   It has one usb port and one hirose connector for antenna, easily confused as usb port.
prox3-straight.jpg

The standard antennas which comes with this device leaves much to want.


冰人

modhex(hkhehghthbhudcfcdchkigiehgduiehg)

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#10 2018-09-11 03:09:19

Tom5ive
Contributor
Registered: 2017-09-18
Posts: 35

Re: Low Frequency RFID Antennas

Oh yes! That board lol, those antenna are horrible sad

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