RepeaterBook

RepeaterBook turns the collection of local club lists into a travel-ready directory. An operator can browse a region or map, narrow repeaters by band and analog or digital mode, and inspect frequency, offset, access tone, location and community notes. Registered users can build printable lists and export data for CHIRP and several manufacturer programming packages, avoiding error-prone retyping before a trip. Owners, coordination groups and local editors supply corrections that regional administrators review.

A listing is not permission to use a system, proof that it is on the air today or an official coordination record. Closed repeaters, temporary outages and coverage shaped by terrain still require local knowledge and on-air listening. The project explicitly separates its directory role from the authority of frequency coordinators, even though its data now powers the ARRL repeater directory. RepeaterBook is therefore best used as the first programming and discovery pass, followed by club pages or coordinator records when a channel is operationally important.