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The stock antenna that comes with most LoRa boards is a rubber duck (flexible whip) antenna, typically 1-3 dBi gain (often a quarter-wave stubby around 2 dBi). For many use cases, this is adequate - but upgrading to an external antenna is one of the most cost-...

Antenna gain specifications use two different reference points - dBi and dBd - and confusing them leads to incorrect link budget calculations. Here's what each means and how to convert between them. The Reference Antennas dBi (decibels relative to isotropic...

Budget MeshCore Repeater: Under $60 Not every deployment calls for a weatherproof solar installation. For indoor sites - offices, community centers, apartment building hallways, or any location with reliable mains power - a minimal MeshCore repeater built arou...

Pro MeshCore Solar Repeater: Complete BuildThis guide covers a fully self-contained, weatherproof, solar-powered MeshCore repeater intended for rooftops, hilltops, and any site without mains power. Budget roughly $230 in parts (re-priced against current vendor...

When to Add a Repeater vs. When to Move OneEvery mesh network operator eventually faces two related but distinct decisions: should you spend money on new hardware, or should you reallocate what you already have? This page gives you a structured framework for m...

Linking Isolated Mesh IslandsAs independent community mesh networks grow, they sometimes develop in parallel - two neighborhoods, two towns, or two emergency response zones that each have healthy internal mesh coverage but no connection between them. When thos...

Designing for Reliability: N+1 RedundancyIn plain terms: make sure that no single node failure can split your network into two halves that can no longer reach each other. A mesh network is only as reliable as its weakest single point of failure. In graph theor...

Planned Maintenance Procedures for Live NetworksTaking a backbone node offline for maintenance - whether for firmware updates, hardware replacement, or antenna adjustments - affects the users routing through it. With proper planning, that impact can be reduced...

Channel Utilization ManagementChannel utilization (CU) is one of the most important health metrics for a Meshtastic network, yet it is frequently misunderstood or ignored until problems become severe. Understanding what CU measures, what causes it to rise, and...

Understanding Meshtastic's MQTT topic structure and packet encoding lets you build integrations, parse data, and troubleshoot gateway connectivity issues. Topic Structure Meshtastic publishes to MQTT topics using this hierarchy: msh/{region}/2/{e|json}/{chann...

A common misconfiguration in networks with MQTT gateways is the "MQTT loop" - packets sent over LoRa get forwarded to MQTT, which then re-injects them back into the LoRa network, causing each message to be transmitted multiple times and rapidly increasing chan...

A network map shows you which nodes can hear each other, the quality of each link, and how messages actually route through your network. Building and maintaining an accurate map is essential for optimizing coverage and identifying problem areas. What to Map A...

Meshtastic has two distinct concepts that are easy to confuse. The LoRa Frequency Slot (lora.channel_num) selects the single center frequency the radio transmits on. This is separate from the up-to-8 logical Channels (each with its own name and PSK, indexes 0–...