Understanding Cell Phone Signal Strength

Cell phones have become the backbone of communication for both individuals and businesses, so having a high signal strength in your commercial facility is more crucial than ever. A strong cellular connection provides smooth conversations with fewer lost calls and faster, more dependable data transmissions. Mobile device users who have a good cell phone connection can make personal and professional calls over the phone without the need to worry about call stability.

If you want to guarantee that your family, employees, or customers can use their mobile phones in your facility, you need to understand what excellent signal strength is and how to assess whether you have it.

What Constitutes a Good Cell Phone Signal Strength?

A cellular signal’s intensity may be precisely measured through the use of decibel milliwatts also known as dBms. Signal strength in dBms is given as a negative value that normally lies between -30 dBm and -110 dBm, with levels closer to zero indicating better cellular signals. This indicates that a signal at -77 dBm is stronger than one at -86 dBm.

Signals better than -85 decibels are regarded as useful and strong, whereas signals stronger than -50 dBm are uncommon. A signal that is weaker than 100 dBm is likely to be too troublesome to be functional, resulting in lost calls.

In practice, excellent mobile phone signal strength in a home or business structure involves the following:

  • Clarity on the phone
  • There are few or no dropped calls.
  • Buffering to a minimum
  • Download and upload speeds that are lightning fast

What Do Your Phone’s Signal Bars Really Mean?

If you’ve ever tried and failed to make a cell phone call in an unfamiliar place, you’ve undoubtedly checked at the number of bars on your phone. Unfortunately, you may see bars yet still be unable to make calls. Unfortunately, this occurs because these signal bars do not accurately gauge signal strength. License-exempt mobile phone repeaters are more reliable for network strength. It will help you to get coverage in your area.

Because there is no industry standard for controlling signal strength bars on phones, they offer an indicator of the relative strength of the cellular signal rather than an absolute figure. Furthermore, because each phone maker employs its own algorithm to evaluate signal strength, bars from various manufacturers might vary dramatically. In other words, a phone with two bars may receive a stronger signal as compared to a phone with three bars. It is also possible for your phone to show four bars when there is no service at all.

How Can You Tell How Strong the Cellular Signal Is in Your Building?

Both Apple iOS and Android smartphones feature secret field test settings that can precisely determine cellular signal strength if you have an active connection. When deciding if your firm might benefit from a signal booster, a complete site inspection that includes collecting signal strength readings in and around your building and property can be beneficial.

Field test mode is relatively simple to activate, however, instructions differ based on the device’s make and type.

Android Smartphones

To activate field test mode on your Android phone, go to the settings menu and choose About Phone. The signal strength may be accessed under Network or Status, depending on your model. Under Network Type, you should also be able to locate the network generation (3G, 4G, etc.).


Wi-Fi should be switched off on your iPhone before entering the field test mode. This allows you to see which network you are connected to. To disable Wi-Fi, go to Settings > Wi-Fi and select Wi-Fi off.

As you can see, signal strength is one of the most important and optimal aspects of your cell phone. We do hope that this article has answered some of your questions and allows you to get the best service from your cell phone.