Amateur Radio Digital Communications (ARDC) is a private foundation that exists to support amateur radio and digital communication science and technology.

In January 2024, the USS Hornet Amateur Radio Club (HARC), after raising ~$13,000 for their antenna restoration project, was awarded $90,000 by ARDC. These funds allowed them to restore and modernize both the radio equipment and facilities on the USS Hornet. The upgrades aim to further HARC’s work in amateur radio education, promotion, and historical preservation.