Term Description
repeater In telecommunications, a repeater is a device that receives a signal and retransmits it, so that the signal can cover longer distances. A repeater can either retransmit it at a higher level/power, or it can simply extend the range by repeating the signal over some obstacles. If placed at the edge of a network, it can extend the coverage area.

In wireless networking, a wireless repeater (a.k.a wireless range extender) takes an existing signal from a wireless router or access point and rebroadcasts it to/from wireless clients to extend the range of the network. It differs from access points in that it is wirelessly connected to all devices on both ends of the connection.
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