I need to find a way to extend the range of 125Khz RFID module to 100cm or greater - what would be the design of an external antennae which the 125Khz RFID module can power to extend the range and maybe an example?
We do not suggest to use this module to extend to 1m. if you want to do that, you have to add amplifier to the PCB board, change the antenna to more than 24X24cm, and use the long distance card as well. thanks.
Seeed techsupport team