(Optional) Installing The External Antenna - Huawei B660 Quick Start Manual

(Optional) Installing the External Antenna

Connect the external antenna to the device's external antenna port. Install
the antenna securely by screwing it completely into the antenna jack.
Note:
If you do not need to connect an external antenna, you can skip this step.
You need to first set the antenna mode to external on the management
page (http://192.168.1.1). For details, see Help on the management
page.
The external antenna can be used indoor only.
While a conversation or data transfer is in progress, you are unable to
switch between the internal antenna and the external antenna.
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