Forschungsgemeinschaft Funk e.V.

Edition Wissenschaft

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Edition No. 9 July 1996
The effect of pulsed electro-magnetic fields on the electro-encephalogram of humans

Assessment of the experiments conducted by Lebrecht von Klitzing

Lebrecht von Klitzing reported in a series of publications and lectures on the possible effects of pulsed, high-frequency electromagnetic fields on the electroencephalogram (EEG) of humans. So far, other scientists have not been able to reproduce the experiments conducted by L. von Klitzing on the basis of his publications.

This study was made by CETECOM on behalf of the Forschungsgemeinschaft Funk. The objective was to analyze the experiments carried out by L. von Klitzing and to document them with the assistance of L. von Klitzing to enable verification of the results by other scientists.

Results of Analysis

The results of the analysis made are given below in concise form.

  • According to L. von Klitzing, 26 experiments were conducted. The effect in question has occurred 21 times according to his interpretation of the results.
  • From the papers presented, 6 different experiments can be identified.
  • The experiments are not sufficiently documented in the publications made. Reproduction by other scientists would therefore not be possible.
  • The results are presented as established scientific knowledges.
  • L. von Klitzing and CETECOM jointly carried out three experiments, with the effect occurring once according to L. von Klitzing.
  • The experiments were evaluated separately by L. von Klitzing and CETECOM, the latter employing a newly developed method.
  • In evaluating the EEGs, L. von Klitzing concentrated on alpha waves exclusively. He found that with the fall-off of the alpha wave the delta and theta waves rise. This effect is obtained when the attentiveness of a test person decreases and is utilized by physicians for monitoring this ability.
  • Physicians consider a continuous experiment lasting more than one hour too long; they recommend max. 15 minutes. It is in the nature of EEGs that they fluctuate strongly.
  • L. von Kitzing did not consult any EEG experts for his experiments.
  • No statistical evaluations were made (no correlations, no probability statistics, no comparisons with control groups).
  • No documented experiments without exposure to the field were conducted.
  • The test person could perceive the switching-on and -off of the high-frequency field (no blind test).
  • The results of the experiments were represented on a square, not a logarithmic scale, which may easily lead to misinterpretations.
  • Digital signal processing with improper parameters (aliasing, inadequate frequency spacing) resulted in grave errors especially in the assessment of shortterm spectra.
  • The pulsed RF signal used in the experiments practically does not differ significantly from a continuous signal as the power levels (information) introduced by modulation are negligibly small compared with the carrier level.
  • The importance L. von Klitzing attaches to modulation must therefore be questioned.

Conclusions for Digital Mobile Radio

The physical differences between the conditions prevailing in the experiments and real conditions existing with digital mobile radio are significant. Therefore no conclusions can be drawn from the experiments as to any biological effects that may be caused by digital mobile radio. None of the differences considered in the study was investigated or at least discussed by L. von Klitzing.


  • The experiments are still in the trial phase.
  • It has not been proven if an effect occurred at all.
  • Results could so far not be reproduced by other scientists.
  • The results can therefore not be described as scientific findings.
  • There are significant differences between the experiments made and real conditions prevailing in digital mobile radio.
  • No conclusions can be drawn from the experiments about any biological effects that may be caused by digital mobile radio.

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