How should I set the settings so that I can read all the tagsI have every turn?

[Uyalç.1]

I want to read 10 tags. I can read less. but I want to read all of them in each round. how can i optimize it? labels are affixed to a metal box. My st25ru3993 reader is located in a refrigerator. I connected the reader to the computer. I entered the appropriate values ​​in the program (as shown in the video) but I can't get a proper result. Could you help?

[Cedric Dalban · Accepted solution]

Hello Uyalc,

this entry has been addressed in the ticket:

https://community.st.com/s/question/0D53W000005ssQxSAI/how-to-make-serial-communication

Let me just copy the answer:

this optimization is really depending on your configuration (tags distance, tag position, board, antenna, environment, noise, ...),

you have plenty of parameters you can play with to find the best combination:

• Use single Target (A or B) with session S2 or S3
• Use coding Miller 4 or 8
• Pre-tune antenna before inventory
• enable autotuning feature
• enable adaptive Q
• use as much as possible different frequencies (frequency hoping must be the highest, do not stay on a single freq)
• increase output power
• Monitor receive gain (find the best compromise between ability to communicate with tags and manage environment noise)

hoping this helps,

regards,

Cedric.

[Cedric Dalban]

Closing this post as it is currently being addressed in post:

https://community.st.com/s/question/0D53W000005ssQxSAI/how-to-make-serial-communication

Cedric.