https://forum.dangerousthings.com/t/share-your-cutest-cyborgs/6329/49?u=peachsqueezer
For me, I at the time used my diy antenna (which is just terrible, highly recommend the one sold on dangerous things for the pm3 rdv4). But also, in my case, I could feel the chip, lined it up with my antenna and then could read it. No chance of just randomly scanning it with this antenna design.