MESH
Defencebay Mesh is an independent and secure communication infrastructure for municipalities, law enforcement and rescue services. Thanks to LoRa technology, devices can exchange data and information even in difficult terrain conditions. The system is energy-efficient, resilient and ready for off-grid operation. This is a solution that increases readiness and safety in crisis situations.
TROP MESH
The TROP MESH device series is a modern solution providing connectivity in emergency situations. The system operates based on LoRa mesh technology – an open, energy-efficient long-range radio network. This allows devices to work for extended periods on battery or solar power, even without access to the electrical grid. Rugged enclosure and weather resistance (IP65) protect the equipment from rain, dust and other factors, making it ideal for field work.
Device Types
The series includes various models tailored to user needs
Solar-powered base stations
Solar panels and batteries provide independent, 24/7 operation.
Portable personal devices
Compact radio stations for rescuers, Territorial Defense soldiers, firefighters or officers. Thanks to small dimensions and weight, they can be carried on the person (e.g. attached to a uniform or backpack). They are equipped with a GPS module for location tracking.
Vehicle-mounted mobile stations
High-gain external antennas mounted on the vehicle roof provide wide area coverage.
Crisis ready
Easy to use, paired with smartphone or terminal, scalable solution ensuring connectivity continuity.
Technical-operational version
Mesh Trop devices create a self-healing mesh network. Each node is an independent transceiver.
Device specifications
Rugged IP65 enclosure and lithium-ion batteries ensure operation in harsh conditions.
Encryption and security
TROP MESH uses AES-256-CTR encryption by default, offering a level close to tactical systems. Each channel has its own key, and the device can store up to 8 AES keys, enabling the creation of groups with different access levels. Channels can be private (with a shared key) or open. In standard mode, the entire mesh network is encrypted, and devices mutually verify keys. This ensures data confidentiality and integrity, guaranteeing that only authorized persons (e.g. rescuers) can read messages.
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Device Operating Modes
TROP MESH firmware allows each node to be configured in one of several roles adapted to the application
Example Use Cases
TROP MESH solutions have been tested and adapted in many situations where independent connectivity is crucial
Search and rescue operations
During disasters (earthquakes, hurricanes, floods), infrastructure is often destroyed. TROP MESH nodes quickly create a local network for rescuers. Encryption and GPS transmission facilitate coordination and victim location. In mountains or forests, without GSM coverage, rescuers with backpack nodes maintain connectivity for many kilometers, and solar repeaters on elevations provide coverage for the entire area.
Evacuation and crisis situations
During evacuation (fires, conflicts), TROP MESH maintains service connectivity despite overloaded or non-functioning cellular network. Portable nodes allow exchange of information about threats, needs and population movements. Base stations on masts or trees ensure network coherence during column movement.
Mass event security
At festivals, rallies or gatherings, TROP MESH creates an independent channel for services. Repeaters with solar panels cover the event area, and personnel with portable terminals have constant contact despite overloaded GSM network. This enables quick response, discreet communication and full coordination of activities.
Field operations without infrastructure
Military, border guard, foresters or explorers often operate in areas without network coverage. TROP MESH creates an ad-hoc long-range network. Nodes in vehicles can be mobile communication centers, and relays on drones or balloons (used experimentally) provide coverage for tens of km². This guarantees continuous data exchange and command in any conditions.
Sprawdzone w działaniu
budowane dla Polski
We gained expertise in real operations — from Ukraine, where network-centric communication systems proved their effectiveness, to projects for companies working with the US DoD.
Today we translate these experiences into strengthening the country's defense, offering a modern, made in Poland communication ecosystem: TROP (Polish version of TAK), managed TROP/TAK servers (vehicle/cloud/on-prem) and resilient Mesh LoRa radios with native Mesh↔IP synchronization and off-grid mode.