In the middle of last year, Ecuadorians watched with concern as 340 foreign boats, most of them Chinese, fished just outside the Exclusive Economic Zone (EEZ) around their country’s westernmost province, the Galapagos Islands. The law of the sea requires such vessels to carry GPS-based automatic identification systems (AIS) that broadcast where they are, and to keep those systems switched on. Some boats, however, failed to comply. There were more than 550 instances of vessels not transmitting their locations for over a day. This regular radio silence stoked fears that the boats concerned were sneaking into Ecuador’s waters to plunder its fish.
Both local officials and China’s ambassador to Ecuador denied this, and said all the boats were sticking to the rules. In October 2020, however, HawkEye 360, a satellite operator based in Virginia, announced it had detected vessels inside Ecuador’s EEZ on 14 occasions when the boats in question were not transmitting AIS. HawkEye’s satellites could pinpoint these renegades by listening for faint signals emanating from their navigation radars and radio communications.
HawkEye’s satellites are so-called smallsats, about the size of a large microwave oven. They are therefore cheap to build and launch. HawkEye deployed its first cluster, of three of them, in 2018. They are now in an orbit that takes them over both of Earth’s poles. This means that, as the planet revolves beneath them, every point on its surface can be monitored at regular intervals…Unlike spy satellites fitted with optical cameras, RF satellites can see through clouds. Their receivers are not sensitive enough to detect standard mobile phones. But they can pick up satellite phones, walkie-talkies and all manner of radar. And, while vessels can and do illicitly disable their AIS, switching off their communications gear and the radar they use for navigation and collision-avoidance is another matter entirely. “Even pirates don’t turn those things off,” says John Beckner, boss of Horizon Technologies….
RF data are also cheap to collect. Satellites fitted with robotic high-resolution cameras are costly. Flying microwave ovens that capture and timestamp radio signals are not. America’s National Geospatial-Intelligence Agency (NGA), one of that country’s numerous spying operations, is a big user of RF intelligence. It employs HawkEye’s data to find guerrilla camps and mobile missile-launchers, and to track both conventional warships and unconventional ones, like the weaponised speedboats sometimes deployed by Iran. Robert Cardillo, a former director of the agency who now advises HawkEye, says dozens of navies, Russia’s included, spoof AIS signals to make warships appear to be in places which they are not. RF intelligence is not fooled by this. Mr Cardillo says, too, that the tininess of RF satellites makes them hard for an enemy to destroy.
Beside matters military, the NGA also uses RFdata to unearth illicit economic activity—of which unauthorised fishing is merely one instance. Outright piracy is another. And the technique also works on land. In 2019, for example, it led to the discovery of an illegal gold mine being run by a Chinese company in a jungle in Gabon. And in 2020 the managers of Garamba National Park in the Democratic Republic of Congo began using HawkEye data to spot elephant poachers and dispatch rangers to deal with them…
Horizon also plans to compile a library of unique radar-pulse “fingerprints” of the world’s vessels, for the tiny differences in componentry that exist even between examples of the same make and model of equipment mean that signals can often be linked to a specific device. It will thus be able to determine not merely that a vessel of some sort is in a certain place, but which vessel it is, and where else it has been…
Excerpt from Espionage: Ears in the Sky, Economist, Mar. 20, 2021


















The rulers of United Arab Emirates (UAE), one of whose components, Dubai, own a majority stake in DP World, one of the world’s largest maritime firms with perations in 40 countries.It is one of several Gulf states trying to gain a strategic foothold in east Africa through ports. Controlling these offers commercial and military advantages but risks exacerbating tensions in the region…
A Beijing-funded wharf in Vanuatu is big enough to allow powerful warships to dock alongside it, heightening fears the port could be converted into a Chinese naval installation. Fairfax Media inspected the $114 million Luganville wharf and was told US coastguard officials and Marines recently visited the sprawling facility and took a keen interest in its specifications. The Chinese and Vanuatu governments have strenuously denied they have discussed a military base…
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The top US general for Africa told lawmakers the American military could face “significant” consequences should China take a key port in Djibouti…. In Febuary 2018, Djibouti ended its contract with Dubai’s DP World, one of the world’s biggest port operators, to run the Doraleh Container Terminal, citing failure to resolve a dispute that began in 2012. DP World called the move an illegal seizure of the terminal and said it had begun new arbitration proceedings before the London Court of International Arbitration.
The world’s vast oceans and seas offer seemingly endless spaces in which adversaries of the United States can maneuver undetected. The U.S. military deploys networks of manned and unmanned platforms and sensors to monitor adversary activity, but the scale of the task is daunting and hardware alone cannot meet every need in the dynamic marine environment. Sea life, however, offers a potential new advantage. Marine organisms are highly attuned to their surroundings—their survival depends on it—and a new program out of DARPA’s Biological Technologies Office aims to tap into [marine animals] natural sensing capabilities to detect and signal when activities of interest occur in strategic waters such as straits and littoral regions.
A SpaceX Falcon rocket lifted off from the Kennedy Space Center in Florida on May , 2017 to boost a classified spy satellite into orbit for the U.S. military, then turned around and touched down at a nearby landing pad.
A real-estate magnate is financing Google’s and Facebook Inc.’s new trans-Pacific internet cable, the first such project that will be majority-owned by a single Chinese company. Wei Junkang, 56, is the main financier of the cable between Los Angeles and Hong Kong, a reflection of growing interest from China’s investors in high-tech industries. It will be the world’s highest-capacity internet link between Asia and the U.S.