In the menu tree, open the Configuration > Wireless LAN > General >
Physical WLAN settings - Radio dialog.
In the "General" tab, click in the "Interface" column the physical WLAN
interface to which you connect the antenna.
Subtract the cable and installed overvoltage protector attenuation from
the antenna gain. Enter the calculated value in the "Antenna gain" field.
Click the "Set" button to save the value.
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Installation BAT450-F
Release 03 08/2016