Portland – Frontier Communications stopped carrying Portland’s ABC affiliate Saturday evening amid a dispute over how much Frontier should pay for rights to broadcast the channel. KATU’s owner, Sinclair Broadcast Group, negotiates annually over what Frontier must pay to carry Sinclair’s channels. The two sides say they have been unable to reach a deal this year, so KATU dropped off Frontier’s service. Frontier offers cable service in parts of Clark County, including Camas and Washougal. KATU remains available over-the-air for homes with a TV antenna, though reception quality diminishes. Frontier also dropped other Sinclair channels, including the Tennis Channel and Reelz.