ST25R3911B read range

[roy23]

I have bought ST25R3911B-Disco board for proof of concept.

I need to be able to read the tag for identification from ~50 cm.

currently I have ST25TA tag and it I can read it from ~3cm.

 I understand I need to buy tag ST25TV with NFC type 5.

can you guide me how I get the ST25R3911B-Disco to work in long ranges ?

what kind tag I need to buy ?

will I need to change the setting in the registers map to get long ranges ?

will the disco be able to provide long range readings ?

if not what reader/eval board can do the job?

[Brian TIDAL · Accepted solution]

Hi,

For similar questions about how to increase the read distance on ST25R3911B, see:

• https://community.st.com/s/question/0D50X0000Bh5zQqSQI/how-to-use-st25r3911b-for-long-reading-distance40cm
• https://community.st.com/s/question/0D50X0000BUj5bBSQR/increase-read-range-of-st25r3911b
• https://community.st.com/s/question/0D50X0000BfsK3kSQE/st25r3911b-with-antenna-size-30x30cm

For your prototyping and tests, you can find ST25TV tags in :

• ST25-TAG-BAG-UB
• ST25-TAG-BAG-AB

Note that the ST25R3916 or ST25R3916B reader can also be used for application requiring an important reading distance.

Rgds

BT