The Deception-class decoy/jamming cruisers were a type of starship on active duty in Starfleet from ca. 2262 to the late 24th century. (Starship Recognition Files 2) Apparently based on the Greer-class or Gagarin-class spaceframe, the Deception class replaced all sensor pallets with communications and electronic countermeasures equipment. The vessel has the ability to create the subspace communications traffic of an entire fleet or starships and can generate the warp signature of any vessel. This ability can be used to draw assets of threat forces away from the main battle group.