Spectrum Management for Amateur Radio
A centralized platform for repeater coordination, frequency information, mapping and engineering review, helping amateur radio community coordinate repeaters more efficiently.
Repeater Directory
Search coordinated repeaters by callsign, frequency, location, band, mode and network.
Interactive Map
Explore repeater locations and geographic information across using an interactive map.
Frequency Coordination
Submit and manage repeater coordination requests through a streamlined online workflow.
Conflict Analysis
Support coordination review with automated frequency, distance and basic coverage conflict checks.
Need to coordinate a repeater?
Submit your station and technical information through the ARCS coordination system. Coordinators can review applications, identify potential conflicts and manage the coordination process online.