KNHC (89.5 FM) is a Class C1 high school radio station based in Seattle, Washington. It is the world's oldest, still remaining, dance music station. C89.5 offers a hybrid of current-based EDM product and Rhythmic Top 40 remixes, as well as new dance songs that are potential future hits – all of which are presented in a Top 40-like direction. It is one of six stations monitored by Nielsen BDS for inclusion in Billboard magazine's weekly Dance/Mix Show Airplay chart. Its best coverage is in the Seattle metro area. The C in C89.5 stands for Communications. KNHC broadcasts in the HD Radio format. Operations and funding KNHC is owned by Seattle Public Schools and is operated by professional staff who provide training to students of Nathan Hale High School in north Seattle, as an electronic media course. Staff supervise students as they perform production, programming, music selection, copy writing, and on-air hosting. Some regular programs are hosted by alumni or non-student volunteers. The station usually plays general electronic dance music during the day, with a number of specialty, genre-specific shows playing anything from house to industrial and trance after 6 pm. Its in-house live programming includes a four-hour weekday breakfast show, the 15-minute lunchtime mini-mix 8-Bit Work Break, the drive show Drive @ 5, and the new music show Test Spin. Since around 2002, Seattle Public Schools has excluded funding for the station from its annual budget, except for a portion of the salaries and benefits for two staff. In 2019, that amounted to about 12% of the annual operating budget. In 2015, the station became qualified to receive a Community Service Grant from the Corporation for Public Broadcasting. The remaining operational budget of the station is raised via fund raising efforts, primarily from bi-annual pledge drives and corporate support announcements known as underwriting. As a non-commercial educational station, they cannot air traditional commercial advertisements. Broadcast coverage and online content The station has one of the widest over-the-air coverage areas for what can be considered a high school radio station. Its signal is broadcast from Entercom's backup tower on Cougar Mountain, and covers an area from north of Seattle to roughly halfway into Tacoma, Washington and across the Puget Sound. The signal can be received as far east as Snoqualmie Pass and as far north as Victoria, British Columbia. It is licensed to Seattle. C89.5 attracts as many as 200,000