US military hit by Jitters bugs

A $5 BILLION programme to build a universal radio to replace the 200-plus types now used by the US military has run into trouble. The Pentagon’s ambitious “Jitters” programme, begun in 1997, aims to create a universal communicator that will connect its personnel with one another no matter what frequency or modulation system they use. But prototypes have fallen short of expectations. No affordable antenna can work over the planned frequency range, which runs from 2 megahertz to 2 gigahertz, without cumbersome power amplifiers,
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