Per-node sensor capabilities for a 20' ISO container reference design (HoloGrid Sentinel class — 120 kWp PV, 264 kWh battery, 9m telescoping mast, autonomous drone dock). Ranges are conservative estimates from public defense and academic sources. The full sensor electronics stack fits in 1-3 rack units inside the container at ~50-150W continuous draw — <1% of daily PV harvest.
This atlas is a concept demonstration, not a precise range model. Coverage is rendered as uniform circles for visualization. Real-world performance varies significantly with terrain (line-of-sight obstructions, mast height), atmospheric conditions (ducting, rain attenuation, fog), sea state, sea spray, antenna obstruction, target signature (EIRP, RCS, IR signature), and sensor fusion benefits across the network. Treat the displayed envelopes as architectural illustrations of the concept's shape and scale, not as commitments about specific link budgets.
Theater-class active radar (SPY-1/SPY-6, AWACS-class), forward-based X-band (TPY-2), Over-the-Horizon (JORN/Container) and ionospheric sky-wave systems are not deployable at the node footprint and bandwidth this network supports. The strategic regime (≥500 NM) is what the network contributes to via fusion and cueing of higher-tier theater assets, not what any individual node delivers.
The CONOPS argument: uniform deployable hardware, distributed siting strategy. Edge nodes carry the same passive sensor stack as backbone nodes — what differs is geographic position. Far-edge nodes extend the coverage blanket because their footprints don't overlap with anyone else's. The mosaic is what gives the network its theater reach.
Pacific Island Mosaic · Atlas
Tethra Systems · concept exploration
An interactive atlas of a candidate HoloGrid Sentinel network — autonomous containerized infrastructure nodes sited across Micronesia and Polynesia. Each node fuses passive maritime sensors with fixed-wing electric UAS (Skydio F10 class), producing a theater-scale awareness picture from a deployable, DDIL-resilient platform. Toggle layers and node counts to see how coverage scales.
Concept demonstration. Not a deployment plan, procurement specification, or final site selection. Ranges are conservative public-source estimates; real-world performance varies with terrain, sea state, and atmospheric conditions.
Each HoloGrid Sentinel is a 20-foot ISO mil-spec container with deployable solar, onboard battery storage, atmospheric water generation, multi-bearer communications, and autonomous launch/recovery for two fixed-wing electric UAS (Skydio F10 class, in early access H1 2026). The solar array autonomously retracts for typhoon resilience. The platform is built for salt-air operating conditions using composite materials and epoxy-coated steel.
Transport is intentional: standard ISO format for ground and sealift, helicopter-liftable by a Marine Corps CH-53K King Stallion or Army CH-47 Chinook. The system arrives, levels, and powers up under its own control.
Sites visualized span the Federated States of Micronesia, Marshall Islands, Palau, Guam, CNMI, American Samoa, and adjacent Pacific waters — chosen for sovereign, COFA, and U.S. territorial coverage across the USINDOPACOM theater, from the second island chain in the north to the South Pacific.
Maturity. Reference design composed from existing commercial subsystems. Not yet built, but buildable on a short timeline once funded — the work is integration and military-environment hardening, not new invention.