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RF Exposure
General Statement on RF Energy
Your phone contains a transmitter and a receiver. When it is ON, it receives and transmits RF energy. When
you communicate with your phone, the system handling your call controls the power level at which your
phone transmits.
Specific Absorption Rate (SAR)
Your mobile device is a radio transmitter and receiver. It is designed not to exceed the limits for exposure to
radio waves recommended by international guidelines. These guidelines were developed by the independent
scientific organization ICNIRP and include safety margins designed to assure the protection of all persons,
regardless of age and health.
The guidelines use a unit of measurement known as Specific Absorption Rate, or SAR. The SAR limit for
mobile devices is 2 W/kg and the highest SAR value for this device when tested at the ear was 0.356 W/kg*.
As mobile devices offer a range of functions, they can be used in other positions, such as on the body as
described in this user guide**.
As SAR is measured utilizing the device's highest transmitting power, the actual SAR of this device while
operating is typically below that indicated above. This is due to automatic changes to the power level of the
device to ensure it only uses the minimum power required to communicate with the network.
* The tests are carried out in accordance with EN50360, EN 62209-1, IEC 62209-2.
** Please see body-worn operation.
Body-Worn Operation
Important safety information regarding radio frequency radiation (RF) exposure:
To ensure compliance with RF exposure guidelines the phone must be used with a minimum of 15 mm
separation from the body.
Failure to observe these instructions could result in your RF exposure exceeding the relevant guideline limits.
Limiting Exposure to Radio Frequency (RF) Fields
For individuals concerned about limiting their exposure to RF fields, the World Health Organization (WHO)
provides the following advice:
Precautionary measures: Present scientific information does not indicate the need for any special precautions
for the use of mobile phones. If individuals are concerned, they might choose to limit their own or their
children’s RF exposure by limiting the length of calls, or using ‘hands-free’ devices to keep mobile phones
away from the head and body.
Further information on this subject can be obtained from the WHO home page http://www.who.int/peh-emf
WHO Fact sheet 193: June 2000.
Regulatory Information
The following approvals and notices apply in specific regions as noted.
Summary of Contents for N790
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