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Results tagged with microwaves
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user 243944
Microwaves, broadly defined, are electromagnetic radiation with wavelengths ranging from one meter to one millimeter; or with frequencies between 300 MHz (100 cm) and 300 GHz (0.1 cm). This range includes both UHF and EHF (millimeter waves) and the entire SHF band (3 to 30 GHz, or 10 to 1 cm).
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Why do I lose signal in a train but not in a car?
In the UK most lines on which fast trains travel have 25,000 volt overhead line equipment. Might the electromagnetic field from this be enough to disrupt the signal your phone obtains? I actually work …