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Radio Frequencies are Key to the Mobile-phone Market
Mobile phones, which depend on radio signals to link users to the phone network, are becoming very popular and are now widespread in the UK. This has been made possible by the deregulation of radio frequencies during the past decade, which has given rise to great public demand.
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Βι¶ΉΤΌΕΔ World Service Archive
This programme was restored as part of the World Service archive project
