Recently Updated Pages
Field Antenna Testing Without Lab Equipment
Professional antenna testing requires a vector network analyzer and anechoic chamber. Field testi...
How Antennas Work at 915 MHz
How Antennas Work at 915 MHz An antenna is a transducer that converts electrical energy (RF curre...
SWR and Antenna Analyzers
SWR (Standing Wave Ratio) measures how well your antenna is matched to the 50-ohm feedline impeda...
📖 Start Here — Antennas & RF Guide
Antenna choice and placement together are the biggest lever you have over LoRa range - and height...
Feedline Loss Reference
At 915 MHz, cable loss is significant. A long run of cheap coax can negate the benefit of a quali...
Antenna Gain and Coverage Tradeoffs
Antenna Gain and Coverage Tradeoffs Antenna gain is not free - it is always traded against someth...
RF Connectors for LoRa Hardware
RF Connectors for LoRa Hardware RF connector incompatibility is one of the most common and frustr...
Understanding Gain and dBi
Understanding Gain and dBi Antenna gain is one of the most misunderstood topics in practical LoRa...
Grounding and Lightning Protection
Grounding and Lightning Protection A properly grounded and surge-protected antenna installation h...
Connector Types & Coax Cable
Connector Types & Coax Cable Using the wrong connector or cable is one of the most common and fru...
Building a 915 MHz Yagi Antenna
A yagi antenna provides significant directional gain for point-to-point links - ideal for connect...
Coax Cable Selection Guide
Coax Cable Selection Guide The coaxial cable connecting your LoRa radio to its antenna is a criti...
Building a Collinear Vertical Antenna
This page covers two simple, easy-to-build omnidirectional verticals for 915 MHz - a J-pole and a...
Glossary of Mesh Networking Terms
A reference for terminology used throughout this wiki and in the mesh networking community. A ...
General Questions
Answers to the most common general questions about LoRa mesh networking, MeshCore, and Meshtastic...
My node cannot connect to others
Work through these checks in order.Verify antenna is connected. Most common cause. Never transmit...
Ham Radio Operators and Mesh Networking
Amateur radio operators - "hams" - have been among the earliest and most enthusiastic adopters of...
My solar node keeps going offline
Systematic diagnosis in order of likelihood:Undersized battery or panel. Goes offline at night or...
The 915 MHz ISM Band
Nearly all LoRa mesh devices sold for North America operate in the 915 MHz ISM band (902 - 928 MH...
My node is flooding the channel with repeated messages
My node is flooding the channel with repeated messages If you notice unusually high channel utili...