Proxmark3 community

kayser88

Contributor

Registered: 2015-08-12

Posts: 23

Problem with Antenna 13,56 Mhz

Hi,

i have recently bought PM3 with the antenna 125 mhz and 13,56 mhz on the website Ryscc , at the beginning everything worked perfectly,
the command "hw tune" and different readings were good with Antenna 125 and 13,56

And know i don't know why my antenna 13,56 Mhz doesn't work.

I tried to change the USB cable and to check the switch on the  antenna board on off on off on

And no results

Does somebody have an idea ? i hope it's not my PM3 ? 

marshmellow

Contributor

From: US

Registered: 2013-06-10

Posts: 2,302

Re: Problem with Antenna 13,56 Mhz

broken solder on the antenna port to the board or the usb port to the antenna?  check continuity/ohms.

kayser88

Contributor

Registered: 2015-08-12

Posts: 23

Re: Problem with Antenna 13,56 Mhz

i tested solder its ok and i cut the cable USB in half and check black and green with USB Solder on the board it's ok.

i don't know how check ohms with my electronic tester ( where on the board )     can you tell me how please ?  and do you know if i plug my usb cable on my PM3 can i measure something with black and green cable ?

Thank you for your help.

iceman

Administrator

Registered: 2013-04-25

Posts: 9,538

Website

Re: Problem with Antenna 13,56 Mhz

run the  "hw ver"
if you are not running  v2.2.0  , then please upgrade it by downloading the latest source from GitHub.

Once we can make sure its not firmware, then it is most likely a hardware issue.

kayser88

Contributor

Registered: 2015-08-12

Posts: 23

Re: Problem with Antenna 13,56 Mhz

hi,

Normaly i upgraded my PM3   

But when i check my HF Antenna
hw tune  : HF antenna unusable   
( LF antenna is ok )
Can i check my antenna with Ohms ? if yes how ?
Thanks