Emerson 1410S Reference Manual page 102

Quick Start Guide
1.3 Antenna position
The Emerson 781S Smart Antennas should be positioned vertically and
approximately 3 ft. (1 m) from large structures, buildings, or conductive
surfaces to allow for clear communication to other devices. If installing
multiple antennas, it is important that the antennas have three feet of
horizontal separation from one another.
Figure 1-2: Antenna Position
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March 2020
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