Hans Otto König Experiment

by Dr. Anabela Cardoso, Professor David Fontana and Professor Ernst Senkowski
Originally published in the ITC Journal No. 24, December 2005. Also published in the January 2007 AA-EVP NewsJournal.          ©Anabela Cardoso – All Rights Reserved


In the year 1974, Hans Otto König, now 66, a professional electroacoustics technician living in Mönchengladbach, by chance found himself listening to a discussion broadcast by ZdF (the second German TV Channel) in which Friedrich Jürgenson from Sweden, the pioneer of EVP, tried in vain to convince the well-known German parapsychologist Prof. Hans Bender and other critical scientists and journalists of the reality of extraordinary voices captured on his audio-tapes and apparently originating from the deceased.

Hans Otto König

König’s interest was aroused, and he resolved to start his own experiments in an attempt to demonstrate that the anomalous voices came from the unconscious of the experimenter rather than from the deceased. Instead, he received the singing voice of his late mother who addressed him and his father by name and asked whether or not they could hear her. During the following weeks, König was forced to the conclusion that the voices did indeed come from the so-called dead. He started his EVP experimentation using as background support noise a radio station transmitting in a foreign language, and although he obtained his positive results almost immediately, initially they were of very poor quality, consisting mostly of whispers and sighs rather than vocalizations.

Subsequently he changed his background noise from foreign language broadcasts to ultra-sounds, since this is an area of acoustics which he understands, and has used his professional expertise and psychic faculties to improve the quantity and quality of the contacts with the beyond—now known as Instrumental TransCommunication or ITC—by inventing and continuously modifying electronic devices specially developed for the purpose. Initially, he applied combined frequency-modulated mechanical ultrasonics transmitted and received by transducers in his laboratory. He then found that electromagnetic oscillations in the frequency range around 50 kHz produced the same results. Later he added a multifrequency infrared transmitter-receiver system, which demodulates infrared and modulates it again to a UHF vibration-oscillation from 10 m down to a 1 m wavelength, with a frequency of 30 MHz to 300 MHz. Currently he is working with a complex device based on quartz-crystals irradiated with ultraviolet light which he calls HRS (Hyper-Raum-System or Hyperspace System).

König tells us that he builds his various IC devices according to his own thoughts and the information he receives in dreams from the communicators. He further tells us that he goes into deep meditation for thirty minutes every day and while doing so can “see” (as a kind of psychic perception) his communicators as diffuse physical shapes, and that he has also been successful in photographing them using the Klaus Schreiber closed loop method. His explanation for the success of his experimentation is the key word “resonance,” which he says includes electromagnetic resonance.

The voices that now come through his loudspeaker are of a different, often excellent, quality, and he is sometimes able to dialogue with them. The contents of communications and the nature of the communicators themselves vary dependent upon the context. Deceased humans may answer the requests of their bereaved relatives and friends for comfort, while at other times, technical advice is given to König, and nameless cosmic entities, apparently outside our space-time, provide philosophical observations. The outcome of an experiment is never predictable, and may produce no results at all depending on mental-spiritual and other (unknown) conditions. König feels that audio results seem to improve in the presence of a harmonious audience, and the same is true for his work on transimages, which in one instance have already been obtained accompanied by the voice of the deceased person, whose identity was later discovered “by chance.”

The Two Experiments

The two experiments that are the subject of this Report were held respectively on September 10th and 11th, 2005, in two afternoon sessions held in a room at the Hotel Kaiserhof, in the German town of Wesel. Dr. Anabela Cardoso attended, accompanied in the unavoidable absence of Professor David Fontana by Mr. Carlos Fernández, the Technical Editor of the ITC Journal and an electronics technician with long experience of ITC data. Also accompanying Dr. Cardoso was Professor Ernst Senkowski, one of the foremost experts on ITC, who has known König well for many years, and who was responsible for helping to arrange Dr. Cardoso’s visit. The others present included visitors from Finland and some sixty of the regular observers of König’s previous experiments, together with a few individuals who were attending for the first time. König completely eschews publicity and avoids working with journalists and the media because of the negative experiences he has had with such groups in the past. All the communications were in German, which is the native language of König and of Professor Senkowski and in which Dr. Cardoso has some facility.

First Experiment, September 10th 2005.

König opened proceedings with an introductory talk that included recordings of voices received during earlier experiments. After a short meditation he then activated one of the older systems developed by him many years ago, which has misleadingly been called a “generator” but which in fact should be considered as a device open to the influx of information from hidden ranges of consciousness. This infrared/ultrasound device operates in a frequency range from 30 kHz to 70 kHz. The device, which looks like a rectangular metallic box, was built by König himself and the frequencies are mixed in its interior while an aerial placed on top of the generator transmits the signal to a receiver in the same band. An amplifier is connected to a mixing table and to the loudspeakers. König’s microphone and recording apparatus are also connected to the mixing table. When the voices started, silence was suddenly transformed into a beat, and the voices seemed to speak much above the beat. The communications that resulted lasted some two minutes and consisted of a nearly continuous dialogue between König and several voices.

The communications began with the habitual opening words. “Contact field closed” (i.e. closed to intruding entities), and finished with, “Contact end.” In all, there were fifteen exchanges. In Exchange Number 2, the “answer” did not directly refer to the question asked by König. In Number 5, the voice asked for a technical modification of the equipment being used. In Numbers 9 and 14 respectively, two names of earlier acquaintances of König, “Hubert” and “Helmut,” were given, the latter communicator spontaneously referring to König’s sick wife, Margaret.

Most of the voices were clear and could be heard above the permanent noise level from the equipment. In consequence the comprehensibility level was around eighty-five to ninety per cent for all those present during live listening, and one hundred per cent on replay. The voices were of excellent quality, but somehow did not possess the same degree of what Dr. Cardoso describes as the “inner clarity of an angelical prototype” that in her view was overpowering in the voices that came through during the experiment of the following day. Professor Senkowski expressed himself unable to always decide whether a voice sounded more male or more female.

An interesting observation concerns the varying speed of the utterances. For example, Exchange Number 12 was spoken very quickly, and here and in other cases, one had the impression that when the contact is nearing its end because of shortness of “energy,” the speech is accelerated. Another observation concerns the time lapse between the questions of the experimenter and the responses from the communicators. These lapses were generally in the range of a few seconds, but in Number 12, the voice broke in before König had completed his question, so that the two voices momentarily overlapped.

To some extent, the speech of the communicators possessed its own character and style, both of which are difficult to describe. Often the speech sounded not “normal” or not “human-like.” Grammar was not always correct. The contents sometimes were metaphorical and not easily interpreted, especially when the speaker seemed to be a “remote,” non-human being. An example is Number 2, when subsequent to König asking who and where the “speaker” is, the answer, “Ultraschall ist das Bild” is given, (translated as, “Ultrasonics is the image”). This answer could be understood as meaning that the voice, as mediated by the electromagnetic oscillations in the range of 30 to 70 kHz, is an “image” of the speaker, who remains unnamed. Alternatively the speaker may be identifying his (mental) “position,” as in or near the equipment being used. But these alternatives must remain more or less speculative.

Second Experiment, September 11th 2005

This experiment was carried out with the HRS system that consists of a large quartz-crystal and ten smaller ones, all of them irradiated by ultraviolet light of different wavelengths. As in the first experiment, we started with a short meditation, after which the device was switched on. After some fifteen minutes, the first voice came through, and a dialogue developed with nineteen exchanges taking place lasting seven minutes and fifty-three seconds.

The background noise, according to König, actually produced from the “other side,” was quite different from that heard from the so-called generator in Experiment One. It consisted of a nearly periodic bird-like high-pitched twittering or chirping, mixed with slow roaring like a storm and waves on a seashore. Most voices were absolutely clear and immediately understood, provided they were not too fast. König spoke his questions in a meditative state, speaking slowly, and the voices answered in their chosen manner.

Most responses were given immediately, although a few were delayed up to twelve seconds, Most of the voices seemed to come from one single entity, who sounded to be female, and they possessed a special modulation, similar to singing. Most of them sounded rather “neutral” or “detached” with the possible exception of Exchange Number 10, where the voice seemed to express some underlying contempt for the stupidity of Christian beliefs, describing them as “unreasonable superstition.” In Number 8 were the words, “I stem from the realm of stars,” delivered in an elevated poetic style. The German words used by the entity, “lch stamme,” can be translated simply as, “I come,” or more tellingly as, I am descended.”

The dialogue seemed to be presided over by a highly intelligent source that treated adult humans like children, with some compassion or even regret. For example Number 15, when we were told that, “But it is probably too difficult for you to comprehend this.” (“This” being their magnificent, super-terrestrial world). However, one should take into consideration the difficulties pertaining to the adaptation process of the different structures of human and the entities’ consciousness in contact through these communications. In the rather long pause between Number 18 and the end of the contact, dull beats similar to drumming appeared as additional signals, although their meaning remained unclear. The live comprehensibility level was around one hundred per cent for all those present.



Diagram of the devices used by Hans Otto König on September 11
Previously published in the ITC Journal No. 24, December 2005

1. 10 UV LEDs UV-C – 100-280 Nanometer

2. 10 Small Quartz Crystals

3. 10 Phototransistors

4. Stochastic Generator

5. FM Output From Stochastic Generator

5A Oscillogram – Line 5

5B Frequency – Spectrum 48 – 68 KHz Line 5


6. FM Demodulator

7. Preamplifier

8. 4 UV LEDs Special Frequencies

9. Big Quartz Crystal

10. Demodulator

11. Low Frequency Amplifier

12. Audio Signal to Mixer

 Related Matters

The transcripts of the communications received during the above mentioned experiments and the respective translations provide by Dr. Ernst Senkowski are available below

During the two days spent in Wesel, Dr. Cardoso had the opportunity to exchange views with Hans-Otto König on a number of issues—namely on the content of the communications she receives from the group of communicators calling themselves Rio do Tempo (Timestream) and recorded by Dr. Cardoso, and of the communications received by Hans-Otto König. Among the many interesting similarities there is, for instance, the fact that König’s communicators very rarely speak in the singular and almost always in the plural, referring to themselves as “We,” just as do the communicators from Rio do Tempo.

They also speak of “meditating (in their world),” as do the voices from Rio do Tempo. Furthermore, König’s and Rio do Tempo communicators tell us that, in the third level of the next world, deceased animals and deceased humans are together again, and that at this level, communication with animals and plants is also possible. Another aspect of the similarities regards the interchange of energies between the communicators and the experimenters. Hans Otto König said on September 10, 2005, prior to the experiment of that day, that the entities who speak with him “can as well charge, or even overcharge, him before a contact, and at other times he feels devoid of energy after a contact.”

From her side on September 2, 2005, Dr. Cardoso wrote in her contacts log the following: “… when I am in the studio I seem to lose track of time. I wouldn’t know if I have been in for fifteen minutes or for over one hour. Also, those days when I feel particularly energetic, and upon request of the communicators, stay inside for a period of time, I feel emptied out and tired when I go out of the studio. On the other hand, the days when I feel very tired and go into the studio, upon going out I feel recovered and the tiredness has disappeared. It is as if there is an interchange of energies with the communicators.” As with the communicators from Rio do Tempo, who refer to themselves as speaking from a “station,” König’s communicators say the group who organizes their contacts is known as “ZentraIe.”


Our conclusion is that we witnessed two fascinating experiments that are the outcome of thirty years of engaged and devoted work by Hans-Otto König, who works without support and who has often been fiercely attacked by what Professor Senkowski calls envious or even ill-intentioned people. Hopefully, at some point in the future, Hans Otto König will be considered one of the most prominent pioneers of ITC, and his wish to prove the reality of life after death will perhaps be fulfilled by a less materialistic science. Meanwhile, we remain thankful for the opportunity to observe the work of this man, and wish him the continuation of success in the laborious developmental path that he has chosen to follow.

Editorial Note

As emphasized in earlier issues of the Journal this research work has been made possible by the generosity of Mr. Oliver Knowles, a great supporter and benefactor of psychical investigation…

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