These things are bluetooth at only 2.8 mw UWB in the GHz range[1]. Anything with that power at that band in an aluminum walled cargo hold is probably nil: kitch

These things are bluetooth at only 2.8 mw UWB in the GHz range[1]. Anything with that power at that band in an aluminum walled cargo hold is probably nil: kitchen foil attenuates 80 dB over 100 Mhz [2] and bulkheads are much thicker. So yeah it's not for technical reasons. 1. https://fccid.io/BCGA2187 https://fccid.io/BCGA2187 2. http://www.aluminium-foil.org/aluminum-foil-for-electromagnetic-shielding/ http://www.aluminium-foil.org/aluminum-foil-for-electromagne...