Doc. # 7430-0710-01 Rev. C
Page
20
ēKo Pro Series User’s Manual
5 Deploying the ēKo system
5.1 Deploying the ēKo base radio and gateway
5.1.1 Antennas
Good radio communication between the base radio and the deployed nodes is important for
reliable operation. If there are several
ë
Ko nodes deployed outdoors within a few hundred feet of
the
ë
Ko base radio then placing it indoors by a window may be sufficient. However, windows,
walls and other barriers can significantly degrade RF communication. Glass windows can reduce
the radio range by a factor of two. Mounting the base radio antenna above the roof-line will
always improve radio range. Users should consider using a remote, outdoor antenna mounted
above the roof line for the best possible communication. If the roof is wood then an antenna
mounted indoor, high-up by the roof line may also work. If the roof is metal then an outdoor
antenna must be used. Standard outdoor Wi-Fi antennas such as a Hawking’s HAO9AI that can
be bought at local outlets or online work well. When using these antennas be sure to use the
manufacturer’s recommended connecting cables otherwise the radio signal may be severely
attenuated. The eB2110
ë
Ko base radio comes with a 2.4 GHz Wi-Fi antenna that can be
unscrewed from its reverse SMA connector. This connector should be compatible with the
external antenna coupling.
Several options are available for configuring an external antenna, the placement of the base radio
and its connection to the gateway:
1.
Standard Indoor Antenna
: Use the standard
ë
Ko base antenna (the antenna that comes
with the
ë
Ko base radio) and mount the
ë
Ko base radio on an inside window or window
seal. The
ë
Ko gateway can be placed within 8’ of the base which is the length of the USB
cable connecting to the gateway.
2.
High-gain Indoor Antenna
: Helps improve the radio range of the base. The base radio is
typically mounted on an inside window or window seal. An omni/directional indoor
antenna should be used for better range.
