A subspace magneton pulse was a burst of polarized magnetic energy that was usually produced by a damaged warp core. (DS9: "Hippocratic Oath") In 2372, the USS Rubicon detected a magneton pulse in the Bopak system that suggested a ship was in trouble. Upon their arrival at Bopak III, they discovered that it was actually created by a Jem'Hadar warship on that was parked on the surface. The magneton pulse was later hidden after a dampening field was erected around the ship's warp engine. (DS9: "Hippocratic Oath")