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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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 ...

Windows: You’ve seen the dreaded bars before—that fun little graphic that indicates the strength of your wireless connection. While full bars mean you’re probably getting good wifi speed, you’ve also ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." “Hello? Hello? Can you hear me?!” We’ve all been there before: little to no cell phone service at a time ...

A new mobile coverage checker is helping to reveal the true state of phone signal strength in Dorset. The online tool, launched by Dorset Council and tech company Streetwave, uses data collected from ...