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 ...

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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 ...

Getting a strong Wi-Fi signal in every corner of your home is not always easy. Sometimes, you notice slow speeds or dropped connections in certain rooms, and it can be tough to figure out why. Testing ...