Case of Chinese Coast Guard Vessel Near Spratly Islands

Unseenlabs Reveals Hidden Activity in the West Philippine Sea with RF intelligence that cuts through contested waters, making China’s presence more visible.

Unseen Labs

UnseenLabs released a new use case in the West Philippine Sea, a region where overlapping sovereignty claims and gray-zone tactics make transparency critical. Through two RF data collection campaigns, the company detected and geolocated:

  • 25,593 RF positions in total
  • ≈ 7% of RF-only positions (vessels not reporting AIS)
  • 92% of vessel activity in the Dangerous Ground missed by AIS
  • 1 prominent Chinese Coast Guard vessel, continuously tracked even when its AIS went dark

This case shows how independent, space-based RF intelligence provides persistent visibility in contested waters, supporting decision-makers with reliable evidence when traditional tracking fails! Check it out here!

About Unseenlabs

Unseenlabs is a leader in space-based RF detection. Our unique technology enables the geolocation and characterization of vessels at sea, anytime and under any weather conditions. The company delivers high-value data and solutions to help combat illegal activities, making its offering a benchmark across the space and maritime sectors. In 2026, we will be launching our next generation constellation for multi-domain surveillance: sea, land and space.

Content Details

Article

Content Type(s)

White Paper

Author

Unseen Labs

Tags

Enabling Tech, Space

Publish Date

30 Sep 2025