RepeaterBook

Global ham repeater directory with powerful offline search

RepeaterBook is a must-have companion for any licensed amateur radio operator who spends time on the road or in the field. Built on a large, community-driven database, it gives you quick access to repeaters in the US, Canada, Mexico and dozens of other countries, all neatly organized and surprisingly easy to navigate.

The standout feature is its fully offline database. Once your data is synced, you can search for repeaters without any network connection, which is invaluable during emergencies, in remote locations, or simply when you do not want to rely on coverage. Using GPS, grid locator, or manual search, RepeaterBook can show nearby repeaters, complete with distance, heading, offsets, CTCSS tones, and other technical details at a glance.

Search and filtering options are extensive. You can refine results by band, mode, distance, and more, then sort them in a way that matches your operating style. The interface prioritizes function over flash, but it is responsive and clearly geared to operators who need quick answers, not eye candy.

One of the app’s strongest advantages is its tight integration with supported radios via BlueCAT Bluetooth CAT interfaces. Tap a repeater entry and have your compatible rig instantly configured, eliminating the usual fumbling with tones and offsets. For active operators, this can dramatically cut setup time when changing locations.

Because the database is community-maintained, you can submit updates and new repeaters directly from within the app, helping keep information fresh for everyone. As a free tool with no apparent feature gating, RepeaterBook delivers professional-grade utility and reliability, making it an easy recommendation for both new and seasoned hams.