Explore the exciting world of Licensed Point-to-Point Microwave Communications!

Screenshot showing a network in Colorado

Find local ISPs. Gain insight on cell reception. Trace high-frequency trading routes. Map out utility SCADA networks. Locate broadcast and teleport facilities. Microwave.earth combines data from the FCC Microwave License Database and Micronet Comm. 70/80/90GHz link registry to form a view of the point-to-point radio links of the US, whether they're carrying phone calls, cat pictures, railroad signalling, digital television, tollbooth payments, or any number of other things.

It's easy to start exploring. ⋙Download⋘ and open the base Google Earth KML, then select networks for display on the left. Special options exist to show all active licences, all inactive licenses (cancelled, terminated, expired, pending), and a view of the AT&T Long Lines network, including non FRN-associated AT&T/US West callsigns. Specific other networks have been isolated and grouped so you can view that network's geographic topology, they are listed below.


How it works?
The base document contains a link that loads the special/FRN groups from the server. Google Earth requests the enabled sub-documents (networks) along with a bounding box of your current perspective of the planet. The server queries its database (making heavy use of PostGIS) and returns the locations and segments that occupy that geographic space.
What about «some country»?
Send me a link to their license database and I'll see what I can do.
Why can't I see anything?
Make sure your eye altitude is less than 25mi/40km for 'all' networks, and 65mi/100km for specific networks.
Why don't some Long Lines sites appear?
The FCC completed and started making use of the ULS (Universal Licensing System) in 1999, but didn't import any licenses that were inactive at that time, so many Long Lines license details are not available in electronic form.
Source code?
Sure, soon.



FRN Groups: