LOS ToolsNational Path Map

Every licensed microwave path in the country, audited for line of sight.

A map of all 130,444 licensed point-to-point microwave links in the United States, with a line-of-sight verdict computed for each one against terrain, vegetation canopy and built structures — and the documents that explain those verdicts to whoever has to act on them.

Paths come from FCC ULS licence filings. Elevation from USGS 3DEP, canopy height from Meta/WRI CHMv2, structures from a merged registry of FAA obstruction data, FCC antenna registrations and the USGS wind turbine database. Nothing is modelled from assumption where a measurement exists.

The map is in private beta — accounts are granted individually. Already have one? Sign in.

130,444
Links audited
76.4%
Pass
7.5%
Pass with notes
15.1%
Fail
57
States & territories

The map

Every link coloured by verdict, filterable by owner, state, band, length and shape. Click a path for its profile, clearances, the controlling obstruction and the date it is predicted to fail if the canopy keeps growing.

The verdict

Fresnel geometry at K = 1.33 and worst-case K = 0.67, earth curvature and diffraction loss, following ITU-R P.530 and P.452. Turbines are modelled as a swept sphere, which is the only treatment that catches a path through the blades.

The documents

Per-path LOS audits and design sheet sets, plus portfolio reports across any filter selection. All generated from the stored profile rather than recomputed, so they are reproducible.