Adapted from an article by Sean Hollister, Feb 16, 2019, | @StarFire2258 | Original The Verge article here.
5G Moto Mod will have proximity shutoff sensors to limit exposure to millimeter waves . . . What does that admit and reveal about the Radio-frequency Electromagnetic Microwave Radiation (RF-EMR) exposures from owning, using and carrying 4G and 5G phones with their antennas powered on?
Photo by Sean Hollister / The Verge
Last August, Motorola announced what might still wind up being the world’s first true 5G phone — the Verizon-exclusive Moto Z3 with an optional 5G Moto Mod. It’s a snap-on module that the company promised would give you an insanely fast 5,000 Mbps cellular connection, faster than most wired Internet these days, but . . . surprise . . . the claimed speeds are now actually 300 Mbps to 500 Mbps (just 6% to 10% of the original 'theoretical' claim).
The 5G Moto Mod just crossed the FCC's desk today, and it came with a surprise in tow — a document from December 2018 that has more details about how it’ll work than I thought the company would ever publicly reveal. One of those details is sure to surprise some people. Namely, the 5G Moto Mod will feature proximity sensors that shut off any of its four millimeter wave 5G antennas if your fingers get too close.
Here’s a portion of Motorola’s description:
As mentioned in the device description, capacitive and proximity sensors are used to disable transmission from a given mm-wave antenna array module when a user may be located in close proximity to the module and in a direction in which the module may transmit. The control mechanism is a simple one in which, if proximity detectors indicate the potential presence of the user within a roughly conical region in front of the module where power density may approach [or exceed] the FCC Maximum Public Exposure limit for Radio-frequency Electromagnetic Microwave Radiation (RF-EMR) exposures, that module is disabled from use by the modem. This terminates and prevents transmission from the module in question until the condition is cleared.
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