8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body

Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

Brain & Nervous System

Do signals of a hand-held TETRA transmitter affect cognitive performance, well-being, mood or somatic complaints in healthy young men? Results of a randomized double-blind cross-over provocation study.

No Effects Found

Sauter C, Eggert T, Dorn H, Schmid G, Bolz T, Marasanov A, Hansen ML, Peter A, Danker-Hopfe H. · 2015

View Original Abstract
Share:

Short-term TETRA radio exposure at levels up to 6.0 W/kg showed no negative cognitive effects in healthy men.

Plain English Summary

Summary written for general audiences

German researchers exposed 30 healthy young men to TETRA radio signals (used by police and emergency services) for 2.5 hours to test effects on thinking, mood, and physical symptoms. They found no negative impacts on cognitive performance or well-being, with some participants actually showing slight improvements in certain memory tasks. The study suggests short-term exposure to TETRA signals doesn't harm mental function in healthy adults.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 385 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 385 MHzPower lines50/60 HzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 385 MHz Duration: 2.5h

Study Details

To investigate possible acute effects of electromagnetic fields (EMF) of two different levels of TETRA hand-held transmitter signals on cognitive function and well-being in healthy young males.

In the present double-blind cross-over study possible effects of short-term (2.5h) EMF exposure of h...

Attention remained unchanged in two out of three tasks. In the working memory significant changes we...

The results of the present study do not indicate a negative impact of a short-term EMF-effect of TETRA on cognitive function and well-being in healthy young men.

Cite This Study
Sauter C, Eggert T, Dorn H, Schmid G, Bolz T, Marasanov A, Hansen ML, Peter A, Danker-Hopfe H. (2015). Do signals of a hand-held TETRA transmitter affect cognitive performance, well-being, mood or somatic complaints in healthy young men? Results of a randomized double-blind cross-over provocation study. Environ Res. 140:85-94, 2015.
Show BibTeX
@article{c_2015_do_signals_of_a_3367,
  author = {Sauter C and Eggert T and Dorn H and Schmid G and Bolz T and Marasanov A and Hansen ML and Peter A and Danker-Hopfe H. },
  title = {Do signals of a hand-held TETRA transmitter affect cognitive performance, well-being, mood or somatic complaints in healthy young men? Results of a randomized double-blind cross-over provocation study. },
  year = {2015},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25839715/},
}
PubMed: 25839715

Cited By (17 papers)

Quick Questions About This Study

A 2015 German study exposed 30 healthy men to TETRA radio signals (385 MHz) used by police and emergency services for 2.5 hours. The research found no negative effects on cognitive performance, with some participants actually showing slight improvements in memory tasks.
Research testing 385 MHz TETRA signals on healthy young men found no harmful effects on thinking ability, mood, or physical symptoms during 2.5-hour exposure sessions. The study suggests short-term TETRA exposure doesn't impair mental function in healthy adults.
A controlled study found that 2.5-hour exposure to TETRA radio signals (385 MHz) did not affect mood, well-being, or cause physical complaints in 30 healthy men. The research indicates TETRA exposure doesn't negatively impact emotional or physical health.
German researchers tested 2.5-hour TETRA radio exposure (385 MHz) and found no negative cognitive or health effects in healthy young men. Some participants even showed improved performance on memory tasks, suggesting short-term TETRA use appears safe.
A 2015 study found that TETRA radio exposure (385 MHz) produced mixed effects on working memory, with significant changes in 2 out of 4 memory subtasks. Notably, 4 out of 5 significant results showed performance improvements rather than impairments.