We would offer the following advice to people who prefer to minimise their personal exposureby keeping the electromagnetic fields in their home or office as small as possible:
1. Structure and uses
2. Technical data
Max. transmission power (mW)
Mean transmission power of beacon (mW)
Mean transmission power (max.) (mW)
2400 – 2483.5
2400 – 2483.5
up to 200
Max. raw data rate (MBits/s)
The most widely used standard nowadays is 802.11g. The frequency ranges of the a and h standards are also used for other services in Switzerland (and Europe). This is why a-standard devices may only be used at reduced power and inside buildings. The h standard has been adapted for Europe in such a way that it can free up the frequency immediately if it is needed by another service.
Regulating transmission power
The effect of distance
3. Measuring exposure
Maximum SAR values
Data rate (Mb/s)
The maximum level recommended by the ICNIRP (International Commission on Non-Ionizing Radiation Protection) is 2 W/kg . The SAR values of all the devices measured are below this level.
4. Effects on health
Individual WLAN devices, such as WLAN-enabled laptops, mobile phones and PDAs, can lead to longer-term radiation exposure when used close to the body. At the moment the impact on health of such devices when used close to the body is uncertain; international research is currently investigating them in detail in connection with the effects of radiation emitted by mobile phones. Suitable precautions as described in the introduction to this fact sheet can minimise this exposure.
5. Regulation in law
2: ICNIRP. Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields up to 300 GHz. Health Phys. 75: 494-521. 1998. See "Further information"
3: Regulation of 14 June 2002 concerning telecommunications systems, SR 784.101.2. See "Further information"
4: Regulation of 23 December 1999 concerning protection against non-ionising radiation, SR 814.710 (NISV). See "Further information"
Last updated on: 30.01.2007