Why short range for pn532 in desfire.

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Why short range for pn532 in desfire.

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annu0412
Contributor II

Why PN532 has short range for desfire ev1 card?When i tap mifare card it can read it from 3cm distance but for desfire i have to tap very close sometime i need to push to antenna.

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annu0412
Contributor II

Hi Vicente

Thanks for your reply.

I bought PN532 board with antenna, how can i calibrate my antenna in this case?

I am a beginner Please help.

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vicentegomez
NXP TechSupport
NXP TechSupport

Hi Can you tell me the board part number?

Thanks

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annu0412
Contributor II

This is the board pic attached.

How can i get the part number?

Regards

Anurag

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vicentegomez
NXP TechSupport
NXP TechSupport

Hi

Probably you have some problem with the antenna calibration.

You can check the application note AN1445

http://www.nxp.com/documents/application_note/AN1445_An1444.zip 

Regards

Vicente

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