Wikipedia
WRNB
WRNB is an urban oldies station broadcasting at 100.3 FM. Licensed to Media, Pennsylvania, it serves the Philadelphia market and is owned by Radio One. It has studios located in Bala Cynwyd and broadcasts from a transmitter site in Philadelphia's Roxborough section. The station is severely short-spaced due to co-channel interference from WHTZ in New York City and WBIG-FM in Washington, D.C. (a similar situation occurs with WBEB (101.1 FM) being short-spaced with WCBS-FM and WWDC).