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Pages: 1
#1 2011-08-29 20:47:34
- moebius
- Contributor
- Registered: 2011-03-10
- Posts: 206
LF antenna and enclosure
I'm looking for an LF antenna (pcb one with cable like .com site) and an enclosure. For you to know, i'm from argentina. I can tranfer the payment via paypal.
Thanx!
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#2 2011-10-21 14:09:02
- laser
- Contributor
- Registered: 2011-06-23
- Posts: 24
Re: LF antenna and enclosure
Hi, moebius
We have made LF antenna using the pcb provided by author J.Westhues, we only alter the adaptor(USB adaptor). and thanks jose from spain, he help me alter the adapt connector.
13 dollars pcs.(including LF antenna and a adaptor,usb to mini 4pin)
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#3 2011-10-21 14:19:35
- thefkboss
- Contributor
- Registered: 2008-10-26
- Posts: 198
Re: LF antenna and enclosure
and thanks jose from spain, he help me alter the adapt connector..
you are welcome
laser is a very good seller.
everything is correct, very fast the delivery, great prices.....
always answer my emails.
is a great seller
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#4 2011-10-22 18:06:17
- moebius
- Contributor
- Registered: 2011-03-10
- Posts: 206
Re: LF antenna and enclosure
laser wrote:and thanks jose from spain, he help me alter the adapt connector..
you are welcome
laser is a very good seller.
everything is correct, very fast the delivery, great prices.....
always answer my emails.is a great seller
no doubt!
and very good stuff!
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#5 2011-10-23 12:43:02
- vivat
- Contributor
- Registered: 2010-10-26
- Posts: 332
Re: LF antenna and enclosure
Your antenna's voltage is low. It should be more than 20 volts for good LF antenna.
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#6 2011-10-23 18:40:15
- jonor
- Contributor
- Registered: 2009-09-17
- Posts: 97
Re: LF antenna and enclosure
With my antenna I have this voltage:
proxmark3> hw tune
#db# Measuring antenna characteristics, please wait.
# LF antenna: 41.09 V @ 125.00 kHz
# LF antenna: 27.93 V @ 134.00 kHz
# LF optimal: 41.22 V @ 130.43 kHzYour antenna's voltage is low. It should be more than 20 volts for good LF antenna.
Maybe the capacitor on this proxmark3 not are in resonance with the antenna. In my proxmark3 I added 100pF in parallel to the original capacitor and I increased the voltage from 37V for 125 KHz and from 20V for 134KHz
Last edited by jonor (2011-10-23 18:42:06)
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#7 2011-10-23 19:56:04
- Bugman1400
- Contributor
- Registered: 2010-12-20
- Posts: 132
Re: LF antenna and enclosure
I'd be careful with too high a voltage. Remember what the antennae feeds into. Now check the rating of that device.
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#8 2011-10-24 18:26:11
- spinoinside
- Member
- From: Italy
- Registered: 2010-02-06
- Posts: 14
Re: LF antenna and enclosure
With my antenna I have this voltage:
proxmark3> hw tune #db# Measuring antenna characteristics, please wait. # LF antenna: 41.09 V @ 125.00 kHz # LF antenna: 27.93 V @ 134.00 kHz # LF optimal: 41.22 V @ 130.43 kHzvivat wrote:Your antenna's voltage is low. It should be more than 20 volts for good LF antenna.
Maybe the capacitor on this proxmark3 not are in resonance with the antenna. In my proxmark3 I added 100pF in parallel to the original capacitor and I increased the voltage from 37V for 125 KHz and from 20V for 134KHz
Can i see a photo of the antenna ???
thanks
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#9 2011-10-24 22:34:03
- jonor
- Contributor
- Registered: 2009-09-17
- Posts: 97
Re: LF antenna and enclosure
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