Electromagnetic Hypersensitivity Worries About License Application Have 'no Factual Basis,' Google Says
Health concerns of opponents of its proposed two-year experimental license to allow nationwide testing in the 71-76 and 81-86 GHz bands "are genuinely held [but] there is no factual basis for them," Google said in a letter to the FCC…
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Office of Engineering and Technology posted Wednesday. Members of the electromagnetic hypersensitivity community filed numerous informal objections in recent weeks to Google's application and to a similar experimental license application by SpaceX (see 1601190013). In its letter, Google said its proposed experimental operations "present vastly less risk from RF exposure than other transmissions the Commission routinely authorizes." It also said its terrestrial antennas will point skyward, and transmitted power levels from its airborne transmitters -- along with their aerial height -- means even if one of the airborne transmitters were aimed directly at a person, "the signal strength received on the ground would be millions of times weaker than FCC limits for the band." The company defended its proposal against criticisms of possible interference to existing fixed microwave operations in the E-band, saying it will use "proprietary interference-mitigation methods" that use FCC link registrations, the precise location of its transmitters, and technical information about the transmitters and antennas. "With this information, Google will dynamically calculate available frequencies, optimal bandwidths and maximum transmit powers for any given location," it said. The company said it wouldn't use combinations of center frequency, bandwidth, transmit power and pointing direction that would create excessive interference for any registered receiver.