Mobile phone signal strength is crucial for ensuring good call quality and fast data speeds. We often encounter situations where mobile phone signals are weak. Generally speaking, we will judge the ...

While strength is often visually represented in the form of cones, bars, or dots, it’s really calculated in the form of decibels per milliwatt, or dBm. A perfect signal is -30dBm, which you’ll ...

The bars on your smartphone represent the signal strength that your phone has received. It could also be used to determine ...

You can easily check your Wi-Fi signal's strength, right down to the exact dBm levels, on a Mac or PC computer. Signal strength is measured in decibel milliwatts (dBm ...

Anything better than -100 is considered a usable signal. A strong signal is -40 or better. So, the closer that number is to zero, the better the phone’s signal. You can check your iPhone signal ...

The iPhone 3G automatically switches between 3G and 2G networks for voice and data connections. In theory, the phone should hop off 3G when signal strength is too low or non-existent, and hop back on ...

You probably know the best place in your home to make a call on your smartphone. It’s usually going by a window or stepping outside, away from any interferences. I own a modern house built primarily ...