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Meshtastic v2.5 introduced Public Key Cryptography (PKC) encrypted direct messages - a significant security upgrade that encrypts DM content per-recipient rather than relying only on the shared channel key. Note that PKC protects the message body: the packet h...

For deployed infrastructure nodes - community repeaters, fixed gateways - you want to prevent unauthorized configuration changes while still being able to administer the node remotely. Meshtastic provides two tools for this: Managed Mode and Admin Channels. M...

Short answer: Heltec WiFi LoRa 32 V3 or T-Beam Supreme For most beginners in North America, either of these is an excellent first choice: BoardPrice (approx)Best forNotes Heltec WiFi LoRa 32 V3$18-25Lowest cost, quick startSmall OLED display built-in; ESP32...

GPS fix time expectations Getting a GPS fix takes time - particularly on a cold start (first power-on or after being stored). Under normal outdoor conditions: ConditionExpected fix time Cold start, outdoors, clear sky30 seconds - 5 minutes Warm start (powere...

Short Answer Yes, with significant range reduction. Interior use is practical for connecting to a nearby outdoor repeater or for testing. It's not suitable as a repeater location. What Signal Loss to Expect The figures below are rough, environment-dependent e...

Why Ski Resorts Are a Communications Challenge A modern ski resort is one of the most punishing RF environments imaginable. Hundreds of vertical metres of complex terrain create deep shadow zones behind ridgelines, cliff bands, and the thick concrete-and-st...

Mesh is a coordination tool, not a rescue system. It is best-effort - messages may not get through, and positions can be stale or missing. It is NOT a substitute for a PLB/satellite messenger, a 457 kHz avalanche beacon, or 911. Search and rescue does NOT mo...

Mesh is a coordination tool, not a rescue system. It is best-effort - messages may not get through, and positions can be stale or missing. It is NOT a substitute for a PLB/satellite messenger, a 457 kHz avalanche beacon, or 911. Search and rescue does NOT mo...

The Challenge of Large Group Rides Mountain bike group rides are inherently dispersed. On a technical singletrack trail, riders string out over hundreds of metres within minutes of the start. By the time the lead riders reach a junction, the tail may still...

Cycling Through Cellular Dead Zones Long-distance cyclists and bikepackers regularly traverse hundreds of kilometres of terrain with no mobile phone coverage. Classic routes - the Tour Divide, the Pacific Coast, the TransAmerica - pass through remote river...

Communication on Multi-Day River and Coastal Expeditions A multi-day paddling expedition presents a communications challenge that most other outdoor pursuits do not: the group is spread across a linear corridor with no practical ability to cut across terrai...

Cross-Reference: Offshore and Bluewater Sailing Comprehensive coverage of LoRa mesh for offshore and bluewater sailing - including AIS integration, mast-mounted antenna installation, SSB radio coexistence, and long-passage MQTT gateway strategies - is provi...

Every MeshCore repeater broadcasts an identity advertisement that makes it visible to the network. Setting a meaningful name and position makes your repeater useful to the wider community. Setting a Repeater Name The repeater name appears in client apps when ...

When multiple MeshCore repeaters serve the same community, coordination between operators ensures the network behaves predictably and provides maximum benefit to users. Radio Preset Consistency (and the Channel-Key Myth) A common misconception is that every r...

The MeshCore serial console provides direct access to repeater state and diagnostic information. Connecting via USB to a deployed repeater is the most reliable way to diagnose problems that cannot be addressed remotely. Connecting to the Serial Console On Win...

Deploying a MeshCore network for a community requires planning beyond simply placing repeaters - you need to think about coverage, redundancy, operator coordination, and long-term maintenance. Phase 1: Define Coverage Goals Before placing a single node, answe...

If you're building a community mesh from scratch, choosing between MeshCore and Meshtastic is one of the first decisions. This page provides a framework for that decision. The Most Important Factor: Community The single most important factor is what your loca...

Operational Note: This page may be consulted during active emergency operations. Regulatory points on this page cite the specific FCC rule (47 CFR Part 15 or Part 97); verify against the current eCFR text and your local ARES group policies before deployment...