Re: Stupid on so many levels
Use a low-frequency, low-data-rate frequency, say below 1GHz. Such frequencies DO exist as EPIRBs and the like don't use the same frequencies. And if you use a low enough frequency, it can probably work in a basement, too. As noted, just check how OTHER anklet systems work. They've already been through the tamper-resistant, basement-capable wringer.
Biting the hand that feeds IT
