The Cabrillo Specification was originally developed by Trey Garlough, N5KO, to provide a consistent method for formatting contest log submissions. Contest sponsors, including CQ, ARRL, and DARC, quickly supported the idea. More importantly, and key to its viability, leading program authors such as K1EA, N6TR, K8CC, W5XD, EI5DI, and others also embraced the concept.
Since its earliest days, the Cabrillo Specification has been the recognized standard for contest logs, revolutionizing the contesting world. It has enabled many contests to support electronic log submission and automate the log checking process. The WWROF administers the Cabrillo Specification on behalf of the contesting community.
There are two versions of the Cabrillo Specification. V2 is now deprecated and should be supported only for legacy purposes. All users are urged to migrate to V3 as soon as possible. Cabrillo V3 is intended to be backward compatible with previous versions of Cabrillo. Therefore, if people submit logs that were created by Cabrillo v2-compliant loggers, their logs should be accepted by Cabrillo v3 log processors.
Questions about the Cabrillo Specification or enhancement requests should be sent to cabrillo@wwrof.org.
Cabrillo Specification – Header
Cabrillo Specification – QSO Data
