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Template Module, Version 2.1, 11.08.2020 / Template Basiseinstellungen: Version 3.1 - 07.07.2020
N870E IP PRO – base station with external antennas
Gigaset N870 IP PRO / Admin IE-UK-International en / A31008-XXXXX-XXXX-X-XX / intro_antennas.fm / 8/10/21
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Third-party antennas
You can also use third-party antennas. They are intended for special tasks and conditions, e.g:
in difficult environments: e.g. for mounting outdoors or cold storage, or similar.
N870E IP PRO can only be mounted indoors.
in case of long distances: Use directional antennas that can cover a greater distance and
channel DECT radiation to cover the area where DECT is needed more accurately.
for aesthetic reasons: Use of an unobtrusive external antenna that matches the environment.
The N870E IP PRO can then be installed invisibly.
to increase the DECT range: mounting external antennas in a better position than would be
possible with an N870E IP PRO base due to spatial conditions, (e.g. distance to LAN connec-
tion).
Notes on the use of third-party antennas
Suitable antennas
The antenna connection must be of the TNC type.
Only use antennas of the same type.
Use the same length of cable on both sides.
Do not mount one antenna inside and the other outside.
Be sure to connect two antennas (antenna diversity).
Antenna diversity is one of the strongest means against unwanted reflections in a duplex
connection between handset and base. If you connect only one antenna, this remedy is over-
ridden.
Use of directional antennas
Neighbouring base stations must receive signals from each other to optimise channel selec-
tion. Using two neighbouring N870E IP PRO base stations with directional antennas
connected and pointing in different directions can therefore be problematic.
Field strength
The operation of external antennas must not exceed the legal limits of permissible field
strength. Check your regional regulations. If in doubt, you can reduce the transmit power in
the Web configurator via the Reduce TX power by 8dB for external antenna operation
option for this unit ( p. 49).
When calculating the total antenna gain, take into account that the coaxial cable causes
additional attenuation that must be considered.
Gigaset has selected and tested a number of third-party antennas. You can find
recommendations at wiki.gigasetpro.com.
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