AL7020S Designer’s Guide
Doc. No. DG_7020B
Altec Electronic AG
Seite 31 / 32
7.2 Safety
Precautions
Your GSM terminal is based on the GSM standard for cellular technology. The
GSM standard is spread all over the world. It covers Europe, Asia and some parts
of America and Africa. This is the most used telecommunication standard.
Your GSM terminal is actually a low power radio transmitter and receiver. It
sends out and receives radio frequency energy. When you use your GSM
application, the cellular system which handles your calls controls both the radio
frequency and the power level of your cellular modem.
7.2.1 User Operation
Do not operate your unit when a person is within 8 inches (20 centimeters) of the
antenna. A person or object within 8 inches (20 centimeters) of the antenna could
impair call quality and may cause the phone to operate at a higher power level than
necessary.
IMPORTANT:
The unit must be installed in a manner that provides a minimum
separation distance of 20 cm or more between the antenna and persons to satisfy
FCC RF exposure requirements for mobile transmitting devices.
IMPORTANT
: To comply with the FCC RF exposure limits and satisfy the categorical
exclusion requirements for mobile transmitters, the following requirements must be
met:
7.2.2 Antenna Installation
A minimum separation distance of 20 cm needs to be maintained between the
antenna and all persons.
The transmitter effective radiated power must be less than 3.0 Watts ERP (4.9 Watts
or 36.9 dBm EIRP). This requires that the combination of antenna gain and feed line
loss does not exceed 16 dBi.
7.2.3 Antenna care and replacement
Do not use the GSM terminal with a damaged antenna. If a damaged antenna
comes into contact with the skin, a minor burn may result. Replace a damaged
antenna immediately. Consult your manual to see if you may change the antenna
yourself. If so, use only a manufacturer-approved antenna. Otherwise, have your
antenna repaired by a qualified technician. Use only the supplied or approved
antenna. Unauthorized antennas, modifications or attachments could damage the
terminal and may contravene local RF emission regulations or invalidate type
approval.
7.2.4 Electronic devices
Most electronic equipment, for example in hospitals and motor vehicles is
shielded from RF energy. However RF energy may affect some improperly
shielded electronic equipment.
