An outdoor repeater is a device that receives a wireless signal from a router or access point and then retransmits it at a higher power level. This can be used to extend the range of the wireless network to areas that are not well-served by the router's signal.

A linear amplifier is an electronic circuit whose output is proportional to its input, but capable of delivering more power into a load. Linearity refers to the ability of the amplifier to produce signals that are accurate copies of the input.

a home signal booster can be really helpful if you have poor or no mobile signal in your home .it can amplify the signal from your network provider ,giving you better reception in areas with poor coverage .this can be especially helpful if you live in a rual area , a basement ,or a building with thick walls .