NEC DigitalTalk MAX 2100, Руководство пользователя

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Chapter 4: Safety & Performance
Safety Precautions
For safe and efficient operation of the phone, observe the follow-
ing guidelines.
The cellular telephone is a radio transmitter and receiver. When the unit
is powered on, the phone receives and sends radio frequency (RF)
energy. The phone operates in the frequency range of 824 MHz to 894
MHz, and employs commonly used frequency modulation (FM) tech-
niques. When the phone is in use, the cellular system handling the call
controls the power level at which the phone transmits. The power level
can range from 0.006 watt to 0.6 watt.
Exposure to Radio Frequency Energy
In 1991, the Institute of Electrical and Electronics Engineers (IEEE) and
in 1992, the American National Standards Institute (ANSI) adopted a
standard for safe levels of human exposure to RF energy. Approxi-
mately 120 scientists, engineers, and physicians from universities, gov-
ernment, and industry developed the standard. In March 1993, the
Federal Communications Commission (FCC) proposed the adoption of
the standard. The design of your phone complies with the updated stan-
dard. RF exposure can be further limited by controlling the duration of
calls and operating the phone in a power efficient manner.
Efficient Phone Operation
Extend the antenna fully to operate at the lowest power level possible.
Calls can be sent and received with the antenna retracted; however, the
phone operates more efficiently with the antenna fully extended. Hold
the cellular phone in the same manner as a standard telephone is held.
While speaking directly into the mouthpiece, position the antenna up
and over your shoulder. Do not hold the antenna when the phone is in
use. Holding the antenna affects call quality and may cause the phone
to operate at a higher power level than is necessary.
Antenna Care and Replacement
Do not use a phone with a damaged antenna. If a damaged antenna
comes into contact with skin, a minor burn could result. Replace a dam-
aged antenna immediately with a manufacturer-approved antenna. Use
only an NEC supplied or approved antenna. Unauthorized antennas,
modifications, or attachments could damage the phone and could vio-
late FCC regulations.
Driving
Obey the laws and regulations on the use of cellular telephones while
driving. When using your phone while driving:
• Give full attention to driving.
• Pull off the road and park before making or answering a call
if driving conditions require additional caution.