Altec GSM SOCKET AL7020S - Manual (Page 16)

AL7020S, AL7024S Designer’s Guide
Doc. No. DG_7024E Altec Electronic AG Seite 16 / 32
3.4.2 Antenna Performance Recommendations
Table 3.7 - Antenna Performance Recommendations
Frequencies:
TX 824 – 849 MHz
GSM 850
RX 869 – 893 MHz
TX 880 – 915 MHz
GSM 900
RX 925 – 960 MHz
TX 1710 – 1785 MHz
DCS 1800
RX 1805 – 1880 MHz
TX 1850 - 1910 MHz
PCS 1900
RX 1930 – 1990 MHz
Gain:
0 dBi (unity) gain or
greater
Impedance: 50 Ohm
VSWR:
Typical: 1.5:1
Worst case: 2.5:1
3.4.3 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.
3.4.4 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: