LANCOM 3850 UMTS
Chapter 8: Options and accessories
74
EN
8 Options and accessories
Your LANCOM device has numerous extensibilities and the possibility to use a
broad choice of LANCOM accessories. You find in this chapter information
about the available accessories and how to use them with your base station.
The range of the base station can be increased by optional antennas of
the LANCOM Wireless Router series and can be adapted to special condi-
tions of environs.
With the LANCOM Public Spot Option option it is possible to extend the
LANCOM Router for additional billing and accounting functions in order
to upgrade it to a Wireless Public Spot.
8.1
Optional LANCOM WLAN antennas
To increase the range of the LANCOM base station or to adapt the base station
to special conditions of environs, you can connect LANCOM WLAN antennas
at the base station. An overview of suitable antennas can be found on the
LANCOM web site under
For help with calculating the correct antenna setup for external
LANCOM AirLancer Extender antennas or for antennas of other ven-
dors, please refer to
When installing external antennas, ensure that you observe the statu-
tory limitations of the country in which the WLAN device is being ope-
rated. To help with this, you can enter the transmitting power minus
the cable loss into the LANCOM configuration. These data enable
LCOS to automatically calculate the correct transmitting power for the
selected country.
Antennas are only to be attached or changed when the device is
switched off. Mounting or demounting antennas while the device
switched on may cause the destruction of the WLAN module!
8.1.1
Antenna Diversity
The transmission of radio signals can suffer from significant signal losses
because of reflection and scatter, among other reasons. In some areas, the
interaction with the reflected radio waves can cause a drop in signal strength,
or even cause it to be cancelled out completely.
