WSEC (channel 14) is a PBS member television station licensed to Jacksonville, Illinois, United States. Owned by Southern Illinois University, it is a sister station to WSIU-TV in Carbondale. WSEC's transmitter is located south of Franklin, Illinois; master control and most internal operations are based on the SIU campus in Carbondale.
WSEC operates two full-time satellites, WMEC (channel 22) in Macomb and WQEC (channel 27) in Quincy. WMEC's transmitter is located near Colchester, while WQEC's transmitter is on Ellington Road northeast of Quincy. A translator located in Springfield, W08DP, formerly broadcast on VHF channel 8 for full coverage in that metropolitan area. W08DP's license was cancelled by the Federal Communications Commission (FCC) on August 4, 2021, due to the translator not obtaining a license for digital operation by the July 13 deadline.
The three-station network serves as the PBS member for the Quincy television market (defined by Nielsen), as well as the western portion of the Champaign–Springfield–Decatur market. It serves a large and mostly rural area of western Illinois, northeastern Missouri and southeastern Iowa.