User's Manual Part 1

December 20, 2004 SCP-LPS20x-011-012-01H
ADC Telecommunications, Inc. 17
ANTENNA
The enclosure supports dual internal dipole antennas for diversity (Table 10). The LPS-20x always transmits on one
antenna. However, dual antennas allow diversity in the receive direction. Spatial diversity in the receive path
improves overall system performance by switching from one antenna to the other and selecting the antenna offering
the best receive signal. The access point electronics makes this selection. You have the option to attach one or two
external antennas via dual SMA connectors. One antenna is always used for transmission and reception. Therefore,
for single external antenna installations, make sure that the antenna intended as the transmit/receive antenna is
connected to the SMA connector labeled XMIT/RECEIVE.
Table 10. Antenna Specifications
Parameter Specification
Frequency 2.4 to 2.5 GHz
VSWR 2.0:1
Peak Gain 2 to 3 dBi
Radiation Pattern Omni-directional
Polarization Vertical or Horizontal