Sierra Wireless AirLink ES Series Hardware User's Manual page 17

Rev 4 Aug.15
An RF site survey may be required to determine the best location. See
Antenna Installation
To connect the antennas to the device:
1. Connect both RF antennas, as shown in the illustration.
2. Adjust the antennas so they are in a V-formation, with a separation of
90 degrees.
on page 29.
90°
Startup and Configuration
17