EchoStar Communications has filed a revised proposal to buy Hughes Electronics' DirecTV with federal regulators.
EchoStar, owner of the Dish Network satellite-TV service, submitted the plan with the Federal Communications Commission but declined to make the filing public.
"We will let the FCC handle that," said EchoStar spokesman Marc Lumpkin. "We want to make sure we follow their processes."
Last month, the FCC and Justice Department said the $18.8 billion union would create a monopoly in rural areas and reduce choice in almost all other areas.
Industry analysts doubt any plan will change the minds of regulators.
If the merger does not go through by Jan. 21, EchoStar must pay a $600 million breakup fee to Hughes, a unit of General Motors Corp. If DirecTV pulls out before then, it must pay EchoStar.