Huawei B535-232 Guide Rapide page 9

Installing external antennas
In addition to the build-in antenna designed to satisfy your basic needs, you can also install external antenna
to the router to improve signal reception. Please contact your carrier to purchase the antenna. If you only
require one antenna, plug it into the
Turn off the router and unplug the power adapter before installing any external antennas.
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External antennas are only suitable for indoor use. Do not use external antennas during
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thunderstorms.
Only use external antennas provided by your carrier.
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socket.
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