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AGRI-ALERT WIRELESS MODULE rev.04
AGRI-ALERT WIRELESS MODULE
4.2.2.3 Choosing the Mounting Location
Before attempting to install your antenna, determine where you can best place it to
obtain optimum results. Best performance is achieved when all antennas are close to
each other, mounted at the same height, and in a direct line of sight with no obstruc-
tion in the RF Path. Some examples are illustrated on next page.
STEP 1:
Make an overview diagram of the particular site. Include the following elements:
• Location and orientation of the buildings;
• Distance between buildings;
• Obstacles (trees, bins, roads, fields, etc.)
STEP 2:
Determine the antenna location of each building based on the following requirements:
Make sure the RF signal is properly received by all Wireless modules before fixing
any equipment. Refer to section 4.2.3 to verify the received signal strength.
a) Find a mounting place directly above your Wireless module so that the RF
cable can be as short as possible. The provided RF cable has a total length of
25ft (7.6m). If you need to use a longer cable, please contact your retailer.
b) Identify the master building. This building is ideally located in the site’s median
zone, at equal distance from other buildings. Note that the distance between
the Master Wireless module and the Agri-Alert devices must not exceed 500ft
(150m).
c) Identify the location of the AA9600 (it can either be located in the master
building or in the master building’s hardwired subnetwork).
d) Write down the required antenna height (as defined in Appendix A).
e) Make sure the distance between any Wireless building never exceeds 6,500 ft
(2 km).
f) Determine the antenna position for each building. Make sure no obstacle blocks
the RF signal transmission (roof, trees, bins, etc.) It may be required to cut
down trees or to relocate any element that impedes the direct line of sight
between antennas.
If you are unable to meet these requirements,
please get professional help.
