A radio field signal strength indicator is very usefull for determine radiation patterns of transmitters antennas. An ancillary antenna must be put close to main transmitter antenna. The received ...

This simple circuit measures the strength of a radiated signal from a transmitter. It is commonly used by model airplane builders to check whether their transmitter are really transmitting the radio ...

If you're measuring your cellphone signal by eyeballing the little dots in the top-left hand of your iPhone's display, then you're really missing out on a cool feature by not using the built-in Field ...

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 ...

In a highly unusual move, Apple is pleading mea culpa to the “grip of death” problem in the iPhone 4. The problem causes a significant drop in signal strength if users touch the device’s antenna port.