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125KHz TX antenna adjust

Question asked by Ted Wu on Jun 25, 2019
Latest reply on Jun 27, 2019 by Tomas Vaverka

I have a development board of FRDM-KW019032. I use it to program a TPMS sensor that its MCU is FXTH87xx11. But the yield rate of programming seems no good. I use 125KHz to send the programming data to TPMS sensor. I want to know how to adjust the 125KHz TX antenna to make a good programming yield rate. Can anyone guide me?