A free browser tool for testing 915 MHz mesh coverage and planning LoRa repeaters anywhere in the world. Drop a node and it reads the real terrain to predict how far it will actually reach — line of sight, the hills in the way, and the link budget — before you drive out and put a mast up.
Drop nodes on real ground and the planner reads the terrain between them — where a link is clear, where a hill blocks it, and where a repeater on high ground bridges the gap.
Everything you need to plan a MeshCore or LoRa mesh network on real ground — test coverage, check range, and site the repeaters that knit it together.
Real elevation data for anywhere on Earth, not a flat circle. Ridges cast shadows, and partly blocked paths are modelled with proper diffraction rather than being written off.
Check any two points for clearance and Fresnel intrusion, and get the link margin in dB at your chosen LoRa preset — a real range answer, not a guess.
Pick a start and an end; it searches the surrounding landscape for high ground and works out how many relays it takes and where they go.
Panel, battery and duty cycle checked against local winter sun hours, so a solar repeater still runs in June — not just in December.
See whether a spot works on a stock Heltec V3 or V4 stubby, an upgrade whip, a vehicle mount, or indoors — all at once.
Proposed sites say how far they are from the nearest road or track, and pole height starts low and only rises where a hop needs it.
* Testing coverage and placing up to three nodes needs no account. Saving your plans and opening the terrain line-of-sight profile need an account — free to create, and we’ll always let you know before that ever changes.
The three things the planner does on real terrain — shading the coverage a node reaches, clearing a link for line of sight, and sizing a solar repeater that lasts the year.
Beyond a single point, the planner works at map scale — link two places through the repeaters it takes to connect them, and scan a region to rank the best high ground for a new node.
Testing coverage against terrain before you install anything saves the drive-out-and-hope. Here is the whole loop:
Click anywhere in the world to place a node, then set its antenna, mast height, power and LoRa preset.
The planner pulls real elevation for the area and shades exactly where the node can reach, accounting for every ridge in the way.
Scan an area or link two places and it ranks the high ground that would actually extend your mesh, with how many relays each route needs.
Confirm a solar repeater will run year round on the site's real winter sunlight before you commit to hardware.
The tool works anywhere on Earth — drop a node on any coastline, valley or ridge and it loads the real terrain for that spot. Each region below opens pre-set to the right LoRa band, map view, currency and units for that part of the world:
Building a MeshCore or LoRa network? Join the list for the Hawk Mesh field-test guide, real range results from deployed solar repeaters, and first access when new repeater hardware ships.
