FlexMN …hmmmmm, Do you already have one to implant?
What is this?
Most likely this will be a DESFire type card, which would need to be converted
Just FYI
I am in NZ, and got very close to getting a Public Transport Conversion, I sent my card to Amal, but I heard there was going to be a National Public Transport system rather than our current regional solution, So I am just waiting to see what comes of that.
I wrote up a thread prior to that, that you may wan’t to have a read for some considerations
With regards to you main question, ~“how close can I put implants of the same frequency” thats a tough one to answer
It really comes down to the Reader(s), i.e. Higher power readers are going to be more difficult to target a read from a specific implant.
Some readers may only “look” for specific chip types, so something else in the field, it may ignore
BUT you can also use physics and Biology in your favour
For example a NExT in you #P0 and FlexM1 in you #P01, when you tuck your thumb under your palm, these implants are at right angles from each other, so you can choose how to approach the reader