One digital-dividend sub-band 'may not be enough'

摘要

The growing popularity of wireless broadband could necessitate the allocation of a second "sub-band" of radio-spectrum frequencies, telecommunications operators and technology companies have warned.rnThe call came with Europe-wide agreement still to be reached on the creation of the first "harmonized" sub-band of frequencies - the so-called "800 MHz band".rnThis is part of the band of frequencies between 470MHz and 862MHz that is being freed up by switching off analog-terrestrial television. Most of the band is being used for digital-terrestrial television.