When they're not tormenting humans or scaring pets, ghosts are interfering with technology, appearing on video screens, making radios and [=TVs=] crackle and playing with the lights. Alongside [[GhostlyChill cold spots]], EM interference is one of the 'recognised' signs of a haunting. One variation, known as EVP (electronic voice phenomena), specifically involves anomalous voices or other sounds on electronic audio recordings.

An electromagnetic ghost may be a WalkingTechbane if the interference is strong enough.

Not to be confused with VirtualGhost (which is a "ghost" projected by technological means); HauntedTechnology, (when the ghost is actually inhabiting a machine); or GhostInTheMachine (which is nothing to do with ghosts at all). This trope covers any supernatural activity that makes electrical systems malfunction as a side effect of their presence.

Please note that this often happens in worlds that do not have 'magic' as such but still have ghosts.

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!!Examples:

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[[folder:Fan Fiction]]
* In the ''Manga/CardCaptorSakura'' fic ''FanFic/ShadowOfTheDragon'', Tomoyo uses a tape recorder to communicate with the ghost of [[OriginalCharacter Reiko Ichimai]].
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[[folder:Film]]
* ''Film/HouseOnHauntedHill1999'' (remake): Ghosts show up on a camcorder screen just before murdering a contestant.
* ''Film/WhiteNoise'' is about "electromagnetic voice phenomena", where voices from beyond appear on audio and video recordings.
* In ''Film/TheSixthSense'', Bruce Willis's character discovers the ghosts actually exist when he can hear them on a tape recorder.
* The Ghostbusters of ''Film/{{Ghostbusters}}'' use a device that measures electromagnetic disruption to locate ghosts.
* ''Film/TheInnkeepers'' has Claire and Luke using recording equipment to pick up EVP and find the ghost that they think is haunting the hotel.
* The 2010 movie ''Film/GhostFromTheMachine'' (''Phasma Ex Machina'') has the protagonist build a device that creates an intense electromagnetic field in order to bring ghosts closer to the land of the Living, in an attempt to resurrect his dead parents. However, it also brings back his neighbor's dead wife, and [[spoiler: the psychotic murderer[=/=]suicide who used to own his house...]]
* In ''Film/{{Poltergeist}}'', the ghost researchers use this sort of equipment to monitor the ghostly activities in the house. After one supernatural occurrence, one of them even notes "It's electrical - you can smell the charge."
* Samara Morgan in ''Film/TheRing'' imprints images on a blank videotape (cursing it in the process) and can manipulate televisions when someone's week is up, up to and including emerging from the screen. Before her death, she had similar abilities to psychically imprint images on electromagnetic film
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[[folder:Literature]]
* In Creator/TerryPratchett's ''Johnny and the Dead'', the Dead are able to manipulate, damage, or generally mess around with radios, telephones, televisions, arcade games, jukeboxes, computer networks, satellites, and radio telescopes. Justified because one of them was an electronics genius in life, while another is Albert Einstein's distant cousin.
* Creator/TimPowers is fond of this trope. In his ''Fault Lines'' trilogy, ghosts can call people up on phones and appear on TV talk shows (at least, on the version being watched by the person they're haunting).
* In Richard Matheson's ''Literature/HellHouse'', the haunting is ''literally'' electromagnetic, as ghosts are essentially an energy field which survives the death of the body. [[spoiler:As a consequence, they can be destroyed by a good, hard degaussing unless they are protected in some fashion.]]
* The ghost from ''[[Literature/RepairmanJack The Haunted Air]]'' makes a clock radio's LED display run in reverse, and causes a television to show programming from TheEighties twenty years later, even when it's unplugged and had its internal components removed.
* Creator/AnthonyHorowitz's short story ''The Phone Goes Dead'' has a woman struck by lightning and killed while using her mobile phone. The phone's next owner, a teenage boy, soon starts receiving calls on it from beyond the grave.
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[[folder:Live Action TV]]
* In ''Series/{{Supernatural}}'' normally invisible ghosts show up on camcorder screens and the EMF detectors used by ghost hunters.
* Averted in ''Film/TheStoneTape'' despite the wide array of electronic equipment used to study the ghost. Eventually the scientists realise what they hear and feel is the brain's reaction to whatever is [[LivingMemory imprinted into the walls]]; this is why some people are more sensitive to paranormal phenomena than others.
* An episode of ''Series/DeadtimeStories'' has the ghost of a young girl contact a preteen on her cell phone, in the form of a video that suddenly appears on the screen.
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[[folder:Tabletop Games]]
* ''TabletopGame/GeistTheSinEaters'' affords ghosts several Numina that allow them to do this, such as Ghost Sign (imprint a message in a medium) or Left-Handed Spanner (make technology go haywire). As such, several Sin-Eaters have necromantic Ceremonies that rely on these tropes, like Spectral Photography (take a photograph of an area, get a glimpse of the most dynamic ghost activity that happened in the last few days) and Dead Voices on Air (leave a specially-prepared camera behind, and it will capture whatever ghostly activity occurs in the meantime).
* ''TabletopGame/WraithTheOblivion'' characters can do this using Inhabit, which allows possession and control of inanimate objects.
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[[folder:Theater]]
* Depending on the production, the ending of ''Theatre/BlitheSpirit'' as ghosts Elvira and Ruth destroy the house.
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[[folder: Video Games]]
* In response to a supernatural event in ''[[VideoGame/FirstEncounterAssaultRecon F.E.A.R.]]'', the lights go wild (most of the time they just flicker, but in some instances, they overload and shatter or just mysteriously break), your radio crackles and "unknown origin" is shown as the source of the transmission. Alma also appears on monitors occasionally, like a visual equivalent of an EVP. [[spoiler: Her contractions cause an EMP like effect in ''F.E.A.R. 3''.]]
* While most supernaturalness in ''VideoGame/DeadSpace'' and ''VideoGame/DeadSpace2'' is [[spoiler: inside Isaacs head]] ''something'' is interfering with RIG transmissions.
* Many of the powers in ''VideoGame/GhostMaster'' are electrical in nature such as blow fuse,blackout, wild and crazy and strange behaviour. Technology is also one the 'fetters' or places ghosts [[HauntedTechnology can be anchored]].
* ''VideoGame/SilentHill1'' had a radio which gave off static in the presence of monsters.
** In ''SilentHillShatteredMemories'', you can only see ghosts by looking at them with Harry's cell phone camera, and "echo memories" (which are sort of... lingering traces of emotionally-charged events?) cause the phone to give off weird static/feedback.
* In ''VideoGame/SengokuBasara 3'', [[TheWoobie Oichi]] has a similar "static effect" sometimes when she speaks, in a reference to this phenomenon.
* Taping [=EVPs=] and scanning for electromagnetic signs of ghosts is a crucial part of ''TheLostCrown: A Ghost-Hunting Adventure''.
* Rotom from the ''Franchise/{{Pokemon}}'' series.
* A haunted TV appears in ''DarkFall: Lost Souls'', displaying cryptic images that provide clues to [[spoiler: the code for the ring mechanism]].
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[[folder:Web Original]]
* The [[TheSlenderManMythos Slender Man]] is often shown to muck up electronic equipment, causing static, audio and visual distortion, missing frames, added frames, and general horror. A video camera is also a way to see him when he is otherwise invisible. In ''WebVideo/MarbleHornets'', trying to film him tends to make it worse.
* Jay Are's backpack in Theatre/TheLeagueOfSTEAM is supposedly a device for picking up [=EVP=]s.
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[[folder:Webcomics]]
* The webcomic ''{{Chainsawsuit}}'' plays with this in one of their panels, where the ghost in question is the ghost of an old bunny-eared TV set spouting static.
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[[folder:Western Animation]]
* The ''WesternAnimation/AdventureTime'' episode "Beyond This Earthly Realm" has Finn getting stuck in the SpiritWorld, where it seems he can't interact with anything in the physical plane and no one can even see him but Ice King, who has "wizard eyes", then gets stuck there itself. It turns out they ''can'' effect things subtly, which Finn discovers when he moves around near a television and sees the static start to change.
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