Which handheld digital scanner is best? With extreme weather and natural disasters increasingly common, being able to communicate and receive local radio frequencies is more important than ever before ...

Professor Zhipeng Wu has invented a portable scanner based on radio frequency technology, which is able to show in a second the presence of tumours - malignant and benign - in the breast on a computer ...

LAFAYETTE, Ind. — Most police scanners in the area fell silent two weeks ago. That's when police, fire and ambulance services in Tippecanoe County switched over to the P25 system. The change to the ...