题目内容
A standard antenna can be upgraded to a hi-gain antenna.
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A hi-gain antenna should also stand in the center of your room.
Wireless network signals must be sent both from your computer to your router and vice versa.
Both the laptop’s PC card-based wireless network adapter and a USB network adapter use an external antenna.
If your laptop is the one with built-in wireless network adapter, its antenna is of high quality and it’s unnecessary to upgrade the network adapter.
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