Entity | WHYY-FM

WHYY-FM (90.9 FM, "91 FM") is a public FM radio station licensed to serve Philadelphia, Pennsylvania. Its broadcast tower is located in the city's Roxborough neighborhood at (40°02′30.9″N 75°14′21.9″W / 40.041917°N 75.239417°W / 40.041917; -75.239417) while its studios and offices are located on Independence Mall in Center City, Philadelphia. The station, owned by WHYY, Inc., is a charter member of National Public Radio (NPR) and contributes several programs to the national network. WHYY signed on the air on December 14, 1954, owned by the Metropolitan Philadelphia Educational Radio and Television Corporation. It was the first educational station in Philadelphia. The transmitter, originally located at 17th and Sansom Streets in Philadelphia, was donated by Westinghouse Broadcasting. In 1957, it added a sister television station, WHYY-TV on channel 35.