Huawei B310 LTE CPE Quick Start Manual page 8

Optional: Installing the external antenna
The external antenna is an optional accessory, and may not included in the packaging
box. If required, please contact your local dealer to purchase it.

Before installing the external antenna, ensure that the B310 is powered off and
disconnected from the power outlet.

Only use the external antenna indoors, and do not use it during thunderstorm.

Do not change another unexpected antenna unless manufacturer provide.

To comply with FCC regulations limiting both RF output power and human exposure
to RF radiation, the maximum antenna gain including cable loss in exposure
condition must not exceed 3 dBi in PCS band, 4 dBi in AWS-1 band, 3 dBi in CELL
band, and 4 dBi in LTE band 7.
In areas with poor reception, connect external antenna to the B310's external antenna
port to improve signal reception.
1. Power off the B310 and disconnect it from the power outlet.
2. Remove the cover from the antenna port. (Keep it in a safe place.)
3. Screw external antenna fully into the antenna port.
4. Keep external antenna upward to get better signal.
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