How Does A Cell Phone Signal Booster Work

A cell phone signal booster is one of the devices that you may use if you are struggling to get a strong signal indoors. They’ve grown a lot in popularity because of their effectiveness in solving a well-known problem in both rural and urban communities.

A lot of people worry about the legalities associated with having cell phone boosters. While it’s a valid concern, it’s nothing to worry about. A cell phone booster has been cleared by the Federal Communications Commission or Industry Canada. Therefore, you don’t have to worry about legal issues. They are certified to boost various networks including all of the cell phone networks currently being used. These include 2G, 3G, 4G LTE, and even 5G. A booster can work on any 5G device and some models will be able to boost a 5G signal. They are legal and certified devices to boost cell phone signals. Thereby enhancing call quality, improving dead zones, and offering faster speeds.

This is an effective solution for anyone that has a usable signal outside of their home or building but no signal once inside. The booster needs an existing signal. If you do not have an existing signal, the booster will have nothing to amplify. Therefore, it won’t work. However, for those with existing signals, it can pull in that signal and amplify it. If you’re looking for an easy and simple solution to boost your mobile signal, you can check out Signal Solutions.

A lot of people wonder how these boosters work. After all, they seem like such miraculous devices. How could they possibly offer so many benefits? Here is information on how they work.

How Cell Phone Boosters Work

A cell phone booster or a signal amplifier works in a very interesting way. It probably does exactly what you may think. It takes the weak signal outside and pulls it in. Once it pulls in the signal, it amplifies the signal and rebroadcasts it around the building. Thereby eliminating dead zones and weak signal spots. They can also take the signal from your phone and boost it towards the tower.

There are various kinds of boosters on the market. These include:

In-Building Boosters

These in-building boosters are designed to be used indoors. They are meant to effectively boost the signal you get inside where the original signal could be getting blocked by building materials. They take the signal it gets from outside and boosts it indoors.

Vehicle Signal Boosters

These boosters are meant to be used on vehicles. These can include RVs, trucks, commercial vehicles, boats, and more.

For this product to work, it needs to have an existing signal to latch onto. If the booster doesn’t have an existing signal, it’s not going to have a signal to boost. It cannot and will not create the signal out of anywhere. It will need to latch onto an existing signal. This means if you do not get any signal whatsoever nearby, you won’t get much use out of this product.

These booster kits typically come with three unique elements that include:

  • The external antenna

This is the portion that is meant to capture the existing weak cell phone signal.

  • The amplifier

The amplifier is meant to amplify or boost the weak signal.

  • The antenna

This antenna is placed indoors and it’s meant to rebroadcast the boosted signal throughout the building or vehicle.

All of these elements are connected with coax cables. Coax cables are used because they are capable of delivering high-frequency over long distances with not a lot of signal loss.

External Antenna

This is the primary portion of the booster and it’s placed outside. This external antenna is what captures the weak signal for the rest of it to work.

You will find 2 distinct types of outdoor antennas:


This is the antenna that can pull in signals from 360 degrees. With an Omnidirectional antenna, you can pull signals from any tower located nearby no matter where the antenna is placed. This is great for those that want to get boosted signals from different towers or carriers nearby.


This is the type of antenna that is going to be more for those that only have one cell phone tower nearby. If you only have a single tower to worry about, a uni-directional antenna is a good way to go. You can use this antenna to get a boosted signal and it can reach a lot further than an Omni-directional antenna because it’s only pulling from one direction. However, you need to pay attention to where you position it if you are going to be using this type of antenna. Otherwise, it might not work as well as you’d like. It’s great for those that have very poor signal even outside and who want to boost the signal from a single tower or carrier.