Prairie Radio Communications on Monday took one of the last radio stations they own but had not sold to another company — Galesburg’s WAIK-AM — off the air. WAIK — considered a longtime competitor to WGIL — had been on the air for more than a half-century. Two former WAIK employees — WGIL Engineer Rick Heath and Evening News host Will Stevenson — talk about what the station meant to them, and to the community.