WPXU operates as a full-time satellite of WEPX-TV; its existence is only acknowledged in station identifications. Aside from the transmitter, WPXU does not maintain any physical presence locally in Jacksonville.
WEPX and WPXU were affiliates of MyNetworkTV from September 5, 2006, until September 27, 2009, when MyNetworkTV's affiliation switched over to WITN-TV; prior to this, the stations were solely affiliates of Ion (then known as i: Independent Television and originally known as Pax TV).
Because it was granted an original construction permit after the FCC finalized the DTV allotment plan on April 21, 1997,[5] WEPX-TV did not initially receive a companion channel for a digital television station. WEPX was later assigned channel 51, and the digital signal signed on February 5, 2008. WEPX has filed a letter with the FCC requesting to move from channel 51 to channel 26. This was part of a larger move for the FCC to get TV stations off channel 51 to prevent interference with cell phone devices.[citation needed]
