Plain-language explainers on mesh networking and how to plan comms for your next trip, race, or deployment.
LoRa (Long Range) is a radio modulation technique designed to send small amounts of data over long distances using very little power. Unlike Wi-Fi or Bluetooth, LoRa trades data speed for range — a single node can reach several kilometres line-of-sight, which is exactly what's needed for trail, coastal, and rescue communication where there's no cell tower nearby.
LoRa itself is just the radio layer. To turn a group of LoRa radios into a usable communication network, you need a mesh protocol on top of it — which is where Meshtastic and MeshCore come in.
Meshtastic is a widely used open-source mesh-networking firmware built on LoRa. Devices automatically discover each other and relay messages, forming a self-healing network without any central infrastructure — popular for hiking groups, off-grid teams, and hobbyist mesh networks.
MeshCore takes a different approach to routing and network topology, which can suit certain deployment patterns better — for example, denser node layouts or specific reliability requirements. LoRa-Comms evaluates both per deployment and chooses the protocol that best matches the terrain, node density, and use case (SAR vs. commercial event).
In a rescue operation, the biggest communication risk is losing contact with a unit in terrain that blocks cellular and standard radio — ravines, dense bush, or long coastline stretches. A mesh network solves this by letting every unit's radio relay for every other unit, so a message can hop node-to-node until it reaches command, even if no single radio has direct line-of-sight to base.
Combined with a data backbone, mesh coverage also means photos, drone footage, and position history are captured and organised automatically — turning a chaotic field operation into a structured, reviewable record.
For routes like the Otter Trail or Fish River Canyon, plan around three questions: how long is the route, how dense is the terrain (open coastal vs. forested canyon), and how large is your party? These three inputs roughly determine how many nodes you'll need for reliable relay along the whole route.
Use the Event & Route Planner for a quick estimate, then confirm with a Week Pass booking on the Rentals page. For groups splitting up during the day, consider one node per sub-group plus a base node at camp.