WYAL-FM 103.3

The Most Haunted Frequencies: A Complete History of Radio and the Paranormal

The idea was not invented by ghost hunters with camcorders. It was not invented by podcasters or horror fiction writers or YouTube's analog horror community. The idea that the electromagnetic spectrum carries signals from beyond the range of ordinary human experience is as old as the technology itself -- and it was not fringe voices who first proposed it. Nikola Tesla, the most rigorous electrical engineer of his era, reported in 1899 that his Colorado Springs receivers were picking up signals he could not attribute to any earthly source. Thomas Edison, who spent his final years attempting to build a device specifically designed to communicate with the dead, spoke about the project openly in Scientific American. Guglielmo Marconi, whose radio technology transformed human civilization, reportedly claimed on his deathbed that he had found a way to receive sounds from the past -- any sound that had ever been made, preserved in the electromagnetic field. The boundary between the receiver and the beyond, it turns out, has never been a wall that the people who built the receiver were fully confident they knew the dimensions of.

Before the Ghosts: Radio as an Impossible Technology

To understand why the paranormal followed radio almost immediately from its invention, it helps to remember what radio looked like to the people who first encountered it. In 1901, Guglielmo Marconi transmitted a Morse code signal from Cornwall, England, to Newfoundland, Canada -- across the Atlantic Ocean, through the air, invisibly, instantaneously. This was, by any reasonable definition, a miracle. Not a metaphorical miracle but a literal impossible thing made possible by physical mechanism that the vast majority of those who witnessed the result could not explain and could not access. A voice from nowhere. A message carried by nothing visible from a sender you could not see to a receiver you could not examine between the points of transmission.

The telephone, which preceded radio, had already begun this disorientation. Thomas Watson, Bell's assistant, reported that in the early days of telephone testing he frequently heard strange sounds on the line -- "voices" that were not Bell and not any identified person. He later wrote about these experiences in his autobiography without fully explaining them. Thomas Edison, who worked with Watson, was separately fascinated by the question of what the telephone might pick up beyond what it was designed to pick up -- beginning a preoccupation that would last the rest of his life.

The willingness of the technology's inventors and developers to take seriously the question of what the electromagnetic spectrum might carry beyond intentional human signals is not a hallucination or a cultural artifact. It is documented thought by technically sophisticated people engaging seriously with what their devices were doing. The paranormal history of radio begins in the research notes and public statements of the engineers who built radio, not in the imaginations of credulous audiences who encountered it.

Tesla's Colorado Springs Anomaly: The Signal on the Receiver

In the summer of 1899, Nikola Tesla was operating an experimental high-frequency radio research station in Colorado Springs, Colorado. The station was the most powerful radio receiver on Earth at that time, designed to investigate wireless power transmission and long-distance radio communication. In his Colorado Springs Notes, published decades after his death, Tesla recorded a series of observations about signals received on his equipment that did not match atmospheric or man-made sources.

The signals were rhythmic, regular, and structured in a way that random atmospheric interference typically is not. Tesla noted the pattern: 1-2-3, then 1-2-3-4. Counting patterns. He wrote that he considered and rejected various earthly explanations for the signals -- other researchers, other experimental stations, atmospheric phenomena -- and was left without a satisfying account. He subsequently, in a 1901 article for Collier's Weekly titled "Talking With the Planets," proposed that the signals might be of interplanetary origin, with Venus and Mars as the likeliest candidates given the radio astronomy understanding of his era.

The scientific consensus is that Tesla was observing radio signals generated by Jupiter's electromagnetic interaction with its satellite Io, a phenomenon not fully understood until decades after his death, or that he was observing atmospheric electrical discharges in patterns that admitted of the interpretation he placed on them. Tesla himself remained uncertain and modified his account over subsequent years without abandoning the essential observation that something had been received that he could not explain. The lesson of the Tesla incident is not that he was receiving signals from Mars. It is that the inventor of much of the radio technology we still use was, in the very first year of its serious operation, unable to account for what his receiver was telling him. The unexplained was present from the beginning.

Thomas Edison and the Communicator for the Dead

In 1920, Thomas Edison gave an interview to Scientific American in which he described a project he was working on: a device sensitive enough to communicate with the dead. Not a seance. Not a spiritual practice. An instrument. Edison's framing was explicitly materialist: he believed that personality survived death in some form, potentially as a swarm of what he called "life units," and that a sufficiently sensitive recording apparatus might be able to register the presence and communication of these units without requiring the inexact mediation of a human medium. He wanted to remove the human element from the channel entirely and create a direct device-to-entity connection.

Edison discussed the project in multiple interviews between 1920 and his death in 1931. He never completed or demonstrated the device publicly. Whether it existed as a working prototype, as a concept, or as an idea he discussed primarily for rhetorical effect is not clear from the historical record. His laboratory notes from this period have been examined without producing a definitive account of what work, if any, was actually done.

What is significant about Edison's communicator project is the company it kept. The 1920s were the peak of Spiritualist cultural influence in the United States and United Kingdom -- a movement that attracted not fringe figures but mainstream intellectuals including Arthur Conan Doyle (who wrote extensively on the subject), William Butler Yeats, and a significant proportion of the grieving families that the First World War had produced. Into this context, the most famous inventor in the world announced he was building a device to contact the dead on the basis of scientific principles. The announcement was reported in a scientific publication without mockery. The culture, and the science, had not yet fully sorted the question of what the electromagnetic spectrum was and was not capable of carrying.

Friedrich Jürgenson: The Archaeologist of the Electromagnetic Beyond

On June 12, 1959, Friedrich Jürgenson -- a Swedish documentary filmmaker, opera singer, and court painter who had documented several major cultural figures of his era -- set up a tape recorder outdoors on his property at Mölnbo, Sweden, to record birdsongs. When he played back the recording, he heard, beneath the birdsong, a male voice speaking in Norwegian about nocturnal birds. The voice was not present during the recording session. Jürgenson was alone. No radio was playing. He replayed the tape. The voice was still there.

Jürgenson spent the next four decades systematically investigating the phenomenon. He developed specific methodologies for EVP recording: the use of radios tuned to empty frequencies between stations (producing a sustained background noise that he found more productive than pure silence), the use of microphones positioned in specific ways, the analysis of recordings at varying speeds. He published his first book on the subject, Voices from the Universe, in 1964. A second book, Radio Contact with the Dead, followed in 1967. The books were translated into multiple languages and generated a significant research following.

The strangest chapter of Jürgenson's story is its ending. In recognition of his documentary film work -- genuinely independent of his EVP research -- the Vatican awarded him the Commander's Cross of the Order of St. Gregory the Great in 1987 for his services to art and culture. This placed him in a peculiar historical position: a man who claimed to record the voices of the dead with a tape recorder had received one of Catholicism's highest lay honors. Whether the Vatican was aware of or indifferent to his EVP research is not recorded. He died six months after receiving the honor, at age 84.

Konstantins Raudive and the Controlled Experiment

Latvian psychologist and philosopher Konstantins Raudive encountered Jürgenson's work in 1964 and spent the following years attempting to replicate and systematize it. He recorded what he counted as over 100,000 EVP samples across hundreds of sessions. He developed a taxonomy of EVP types based on clarity and language, with the clearest recordings (Class A) identifiable as speech by listeners without suggestion and the most ambiguous (Class C) audible only as speech-like patterns requiring priming to interpret.

Raudive's 1971 book Breakthrough, published in English by the Ayers & Gall imprint, included a vinyl recording of what he considered his best EVP samples. The publisher organized a series of recording sessions conducted under controlled conditions specifically to test Raudive's claims before publication. The sessions were conducted with a recording engineer and technical consultant monitoring. The published account states that anomalous voices were captured in the controlled sessions. Independent accounts from participants in these sessions confirm that sounds were recorded that the participants found difficult to explain within the controlled environment. The sounds' interpretation as voices of specific deceased individuals remains, of course, beyond scientific validation.

The scientific literature on EVP consistently attributes the phenomenon to auditory pareidolia -- the same cognitive mechanism that causes humans to hear voices in wind, white noise, and water. The pattern-recognition system of the human brain is so powerfully tuned to speech that it generates apparent speech perception from acoustic signals that contain no speech. This is measurable, neuroscientifically established, and explains the majority of EVP recordings that have been analyzed under controlled conditions. It is also, notably, an explanation that the EVP research community has been aware of and has attempted to account for in its methodology for decades -- with varying degrees of rigor and varying conclusions about what the methodology can and cannot rule out.

Ghost Boxes, Spirit Boxes, and the Modern EVP Revolution

Frank Sumption, an American electronics hobbyist, invented the device known as Frank's Box in 2002. It is a modified AM radio receiver designed to scan rapidly through the AM frequency band, pausing briefly on each frequency before moving to the next. The effect is a continuous stream of audio fragments -- words, music fragments, static -- that changes every fraction of a second. Paranormal investigators using the device interpret words and phrases that seem to emerge from the scan as responses to questions asked in its presence.

The ghost box has become, in the fifteen years since its popularization by television programs including Ghost Adventures, the dominant EVP technology in contemporary paranormal investigation. The scientific explanation is clear and well-established: the rapid scanning produces a stream of random audio fragments that the human pattern-recognition system assembles into apparent meaningful speech through the same apophenia mechanism that underlies traditional EVP. Asked a question in emotional circumstances, in a location invested with expectation, the brain will find an answer in the noise. This is not a failure of intelligence. It is an inevitable consequence of how human cognition processes audio information under conditions of uncertainty and motivated reasoning.

What the ghost box tradition preserves, however unintentionally, is the original intuition of the EVP pioneers: that the electromagnetic spectrum is a medium, and that a medium is a channel, and that a channel is a thing that carries information between points, and that the points between which information travels are not necessarily the points we intended when we built the medium. The ghost box researcher, the shortwave enthusiast monitoring number stations, and the engineer at WTTW frantically trying to restore a signal hijacked by a masked figure are all experiencing versions of the same recognition: the frequency goes where the frequency goes, and the people who built it are not the only ones in the room.

The Frequency That Shouldn't Exist

WYAL-FM 103.3 occupies, in the official FCC licensing database, a gap that should not exist. The allotment table for the FM broadcasting band places no licensed broadcaster at 103.3 MHz in the relevant coverage area. The signal should not be there. And yet the signal is there. Something is broadcasting on a frequency that nothing is broadcasting on, carrying content that the FCC has not reviewed, voices the licensing authority has not approved, stories that arrive complete with the static and the sense of great distance that characterize transmissions that have traveled very far to reach you.

The Hollow Hour has been broadcasting from this frequency since 2024. What it is broadcasting, where it is being broadcast from, and who or what authorized the transmission are questions whose answers are not available in the public record. The frequency carries what it carries. The signal reaches what it reaches. The history of radio is, as this document has attempted to establish, a 125-year demonstration that these two facts are stranger than they first appear -- and that the strangest signal in any spectrum is the one for which no one can account.

Transmission Intercepts: Witness Accounts

"I am a licensed radio engineer. I have been one for 30 years. I have no explanation for what I received on 103.3 in this coverage area on three separate occasions. I have checked the allotment tables. I have verified my equipment. The signal is there. It carries content. I have never been able to identify the source. I have stopped trying to."

-- Listener submission, received January 2026

"My grandmother was a radio hobbyist in the 1970s. She recorded what she believed were EVP on her equipment -- voices she swore were family members who had died. I have listened to her tapes. I cannot tell you what is on them. I can tell you that whatever the explanation is, apophenia alone isn't sufficient. The voices use names. They know things. I have the tapes. If you want to hear them, you know the frequency."

-- Listener submission, received February 2026