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In order to achieve maximum range, the football-shaped path in which radio
waves travel must be free of all obstructions. Obstacles in the path (especially
metal) will decrease the communication range between your End Device and
receiver. Also, If the antennas are mounted just barely off the ground, over half
of the Fresnel zone ends up being obstructed by the earth resulting in significant
reduction in range. To avoid this problem, the antennas should be mounted high
enough off of the ground so that the earth does not interfere with the central
diameter of the Fresnel zone.
It is important to understand that the environment may
change over time due to new equipment or machinery being
installed, building construction, etc. If new obstacles exist
between your End Device and receiver, the devices can be
raised on one end or on both ends to hopefully clear the
Fresnel Zone of obstructions.
No co-location with other radio transmitters is allowed. By
definition, co-location is when another radio device or the
device's antenna is located within 20 cm of your
connector/transmitter and can transmit simultaneously with
your unit.
Never install multiple End Devices within 20 cm or less from
each other.
Never use your End Device as a portable device. Your unit
has been designed to be operated in a permanent installation
only.
5.2.3 Antenna Connection
Your End Device has been shipped to you with a standard approved antenna.
Use of any other antenna then what's supplied with your End
Device will void all FCC, IC and CE regulatory compliance.
End Device Operation
NOT :
NOT :
NOT :
NOT :
NOT :
5
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