Loon keeps secrets under wraps while applying for market trial in Puerto Rico

Exactly what Loon is up to remains confidential, but the Alphabet company submitted filings last week seeking permission to conduct a market trial in the 71-76 GHz and 81-86 GHz bands using High Altitude Platform Stations (HAPS) as relay transmission points in Puerto Rico. The purpose: to deliver broadband service to maritime vessels.
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