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![]() ![]() Connected to a router, it works with broadband Internet to provide cell phone coverage by creating a signal source – a “micro” cell site – inside a home or office. A microcell, sometimes called a femtocell, uses an Internet connection to create a localized cell signal covering from one to three rooms in a house.Ī microcell is basically a low-power cellular base station. If you have broadband Internet access, there is a way to create cell signal even if there’s none detectable. So how can your phone connect when there’s no service? ![]() Between -85 and -100 is a sort of “no man’s land” where it’s hard to predict if a booster can help. But if it shows a strength of -85 or stronger then a cell booster can probably improve your signal. ![]() Here’s a short (1-and-a-half minute) video that shows you how to get into Field Test Mode on both Android and iOS devices.Īs the video showed, if your phone in Field Test Mode shows a signal strength of -100 dBm or weaker then a signal booster may not be able to help enhance your reception. With an Android phone you can probably do it in two or three clicks and same with accessing iPhone field test mode. The quickest way to get an accurate reading of signal strength is to put your phone into Field Test Mode. How to really tell if you have cell serviceĪs we just pointed out above, the bars on your phone are not very reliable when you’re trying to figure out what level of cell service you’re getting. At a location where your phone shows no bars, a booster may be able to collect a faint signal and amplify it so your phone can connect.īut to reiterate, if there is no detectable signal even a cell booster can’t help you get service. That allows a booster to detect signal at a level much fainter than your smartphone can. In contrast, cell boosters have very high receiver sensitivity. If there is absolutely no cell signal in a particular location, then a cell booster will not work there to enhance signal.īut don’t mistake no bars on your phone for “no signal.” Just because your phone’s service strength graphic doesn’t show any bars does not mean a signal is not there. In order to work they need an existing cell signal to amplify. So, cell phone signal boosters don’t create a cell signal. The booster also sends amplified signals from devices back to the cell tower to complete the communications loop. The amplified signals are distributed inside a building or vehicle so phones and other cellular-enabled devices have a solid connection. Signal boosters detect and collect weak cell signals, then amplify those signals. The longer answer is “Let’s take a closer look at the question before we accept the short answer.” As with a lot of questions, this one has a short answer and a longer answer. ![]()
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