Can you use a cell booster outdoors?

This is a fairly common question. People who jump into the world of cell phone signal boosters really love them. Often times, they’ll get better service indoors than outdoors. So, naturally they want the same benefit outdoors that they get indoors.

Well… it’s like this.

The problem with using a cellular booster outside is actually a pretty simple one: if you did get it to work, it wouldn’t cover a very big area no matter what. Cellular boosters are designed for indoor use only, and there is really no way to get around that. They rely on the outdoor wall to buffer the signal between the indoor and outdoor parts of the system.

You see, if the outdoor antenna can detect the signal from the indoor antenna at all, the booster will automatically cut power to the system until the two parts can’t see each other. If the indoor antenna detects the signal from the outdoor antenna, that sets up a feedback loop that could create all sorts of problem. Reducing signal means the booster provides less benefit. That means most likely you would get 5-10 feet of coverage if you got anything at all.

So it’s completely off the table?

Now, it’s not like there aren’t exceptions. There are always exceptions. I suppose if you put the outdoor antenna up on a 20 foot mast on one side of your property, and you were trying to boost signal on a patio that was actually 10-15 feet down a hill, and you managed to find a waterproof enclosure that wouldn’t block the cell signal so you could put the indoor antenna outdoors, well theoretically it would work. But come on, that’s a one-in-a-million installation.

The real point here, as stated above, is that cell boosters are designed to avoid the signal from the indoor antenna every reaching the outdoor antenna, because if it did that could create a feedback loop that could cause the entire area to lose cell service. FCC rules mean that cell booster makers must take steps to stop that from happening, and those steps make it pretty much impossible to use a cell booster outdoors. Not completely impossible, but pretty much impossible.

How you can make it happen

If you need good signal outdoors and you use a smartphone that supports Wi-Fi calling, a much better choice is something like this Ubiquiti access point. Running a cable from your router to this device will give you a long-range Wi-Fi network that easily covers most open spaces like pools. It’s designed to work outdoors and can be configured so your guests can’t see the other devices you have at home.

The point is, you have options. And if you want to learn more about them, call the experts at Solid Signal! The number is 888-233-7563. We’re here for you during East Coast business hours. We have experts on the phone who are trained and qualified to answer all your questions. If it’s after hours or if you’d rather communicate by email, fill out the form below! We’ll get back to you, usually within one business day.

About the Author

Stuart Sweet
Stuart Sweet is the editor-in-chief of The Solid Signal Blog and a "master plumber" at Signal Group, LLC. He is the author of over 8,000 articles and longform tutorials including many posted here. Reach him by clicking on "Contact the Editor" at the bottom of this page.