NIST Identifies ‘Sweet Spot’ For Radios In Tunnels To Aid Emergency Links

As part of a project to improve wireless communications for emergency responders, researchers at the National Institute of Standards and Technology (NIST) have confirmed that underground tunnels - generally a difficult setting for radios - can have a frequency “sweet spot” at which signals may travel several times farther than at other frequencies.

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Filed under: IT / Internet / E-mail on May 22nd, 2008