![Inversion field](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/8/8a/Inversion_field.jpg/revision/latest/scale-to-width-down/180?cb=20051030175611&path-prefix=en)
Inversion field
An inversion field is an energy field that blocks subspace communications and short-range sensors.
In 2370, a T'Lani cruiser generated a broadband inversion field to prevent Benjamin Sisko and Jadzia Dax from calling Starfleet for help. (DS9: "Armageddon Game")
In 2371, the crew of the USS Voyager encountered an inversion field while investigating a distortion ring in the Delta Quadrant. The field eventually enveloped Voyager when Lieutenant Tuvok flew the ship through the ring. (VOY: "Twisted")