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High Frequency Fields
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Electromagnetic Fields

Usage of a Mobil PhoneElectromagnetic Fields

Through the use of certain technologies – e. g. power supply network and mobile communication – electric, magnetic and electromagnetic fields are generated in man´s environment. These fields can be described by their strength (amplitude), their oscillation (wave length) and number of oscillations (frequency). One differentiates high-frequency and low-frequency fields, they are part – as is optical radiation – of non-ionising radiation. In contrast to ionising radiation – e. g. X-rays – the energy of this radiation is not sufficient for charging atoms and molecules electrically – for ionising them. Nevertheless can this type of irradiation have impacts on health. Different concepts serve to protect against immediate hazards and as precaution.

Latest News

Smartphone – Tips for Reducing Radiation Exposure
SmartphoneJust as feature phones smartphones use high frequency electromagnetic fields for transmission of speech and data. Besides connecting via mobile networks smartphones often use Wireless Lan (WLan) as well. At present there is no scientific proof of any health hazards due to high frequency electromagnetic fields below exposure limits. However, since long term effects could not be sufficiently examined up to now the Federal Office for Radiation Protection (BfS) recommends to keep exposures to these fields as low as reasonably achievable. Further tips for reducing radiation exposure apply for smartphones having additional features. (full text in German only) more...

Specific Absorption Rates (SAR) for mobile phones

SAR-Werte-Tabelle During the use of mobile phones high frequency electromagnetic fields are absorbed in the head. The measured quantity is the absorbed energy per tissue mass, the so-called “Specific Absorption more...
Bluetooth, Wireless Local Area Networks (WLAN), and Ultrawideband (UWB)

Mann im Café nutzt Internet mittels WLANBluetooth, Wireless Local Area Networks (WLAN), and Ultrawideband (UWB) apply radio frequency radiation for wireless and mobile connection of various devices for telecommunication and data processing (full text in German only). more...
Strahlenschutz beim Mobilfunk

Frau telefoniert mit dem Handy Drahtlose Informationsübertragung und mobile Kommunikation sind heute eine Selbstverständlichkeit. Der Mobilfunk ist unter den verschiedenen Funktechnologien, die zur Informationsübertragung genutzt werden, am weitesten verbreitet. Mit Hilfe hochfrequenter elektromagnetischer Felder werden Telefonate, Bilder, Musik, Internetdaten und andere Informationen übertragen. Was weiß man über gesundheitliche Auswirkungen hochfrequenter elektromagnetischer Felder? Welche Schutzmaßnahmen gibt es? Wie kann man vorsorgen? Antworten auf diese und andere Fragen hat das BfS auf dieser Themenseite zusammengestellt. more...