LANCOM L
-
300 Access Point Serie
Chapter 7: Options and accessories
85
EN
interaction with the reflected radio waves can cause a drop in signal strength,
or even cause it to be cancelled out completely.
Transmission quality can be improved with so-called "diversity" methods. The
principle of "diversity" methods relies on the fact that a transmitted signal is
often received multiple times (generally twice). With appropriate processing,
these signals can be re-combined into a single signal. The most common
methods are space diversity and polarization diversity. LANCOM Systems sup-
plies various polarization diversity antennas for connection to LANCOM
devices. These models enable two orthogonally polarized signals to be recei-
ved with a single antenna. Further information about this technique is avai-
lable in our "Polarization Diversity" techpaper.
7.1.2
Installing the AirLancer Extender antennas
Not for LANCOM L-
305agn Wireless
The following diversity antennas are available as accessories for the L-300
Access Points:
AirLancer Extender O-D80g (2.4 GHz band ), item no. 61221
AirLancer Extender O-D60a (5 GHz), item no. 61222
AirLancer Extender O-D9a (5 GHz), item no. 61224
Before mounting external antennas, please observe the information
on lightning protection in the LANCOM Outdoor Wireless Guide (sup-
plied or available as a download from
). Mounting
antennas without adequate lightning protection could lead to serious
damage to the access point and the network infrastructure connected
to it.
To install an optional AirLancer antenna, switch the device off by unplugging
the power cable. Now carefully unplug the three diversity antennas from the
back by unscrewing them. Connect the AirLancer antennas to the antenna
connectors marked 'ANT 1' and 'ANT 2'. With a LANCOM L-315agn dual
