Goldwater was a prominent spokesman for amateur radio and its enthusiasts. Beginning in 1969 up to his death he appeared in numerous educational and promotional films (and later videos) about the hobby that were produced for the American Radio Relay League (the United States national society representing the interests of radio amateurs) by such producers as Dave Bell (W6AQ), ARRL Southwest Director John R. Griggs (W6KW), Alan Kaul (W6RCL), Forrest Oden (N6ENV), and the late Roy Neal (K6DUE). His first appearance was in Dave Bell's "The World of Amateur Radio" where Goldwater discussed the history of the hobby and demonstrated a live contact with Antarctica. His last on-screen appearance dealing with "ham radio" was in 1994, explaining a then-upcoming, Earth-orbiting ham radio relay satellite.