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G-Link-200-OEM
USER MANUAL
7.2 Optimizing the Radio Link
NOTE
In the event of communication difficulties, it may be necessary to disable WIFI on the host
computer, or use a USB extender when collecting data.
The best method for ensuring optimal radio communication is to conduct an RF survey of
the installation site. This is easily accomplished in SensorConnect by using the range test
feature to quantify the radio signal strength (RSSI) in various scenarios. See
Range Test
for instructions on using SensorConnect for measuring RSSI. The following are general
guidelines for maximizing communication range:
•
Line of Sight (LOS)
between the node and gateway. Try to avoid obstructions such as
buildings, terrain, vegetation, or other physical barriers.
•
Increase the Mounting Height
of the node to allow a clearer LOS path to the gateway.
Height above the ground is also important because reflections off of the ground can interfere
at the receiver. Generally, the higher above the ground the better.
•
Minimize Radio Frequency Interference (RFI)
from other wireless devices, especially
those operating in the same frequency range. This includes other nodes and 2.4 GHz
WIFI routers. If other wireless devices are required nearby, mount them at different heights
to minimize interference. Additionally, a different radio frequency may be selected using
SensorConnect software.
•
Minimize Electromagnetic Interference (EMI)
such as that which is generated by power
transmission equipment, microwaves, power supplies, and other electromagnetic sources.
•
Metal Objects
in close proximity to either antenna, particularly ferrous metals such as steel
and iron, can be problematic for wireless communications. The larger the object, the greater
the influence.
