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Call free on your radio

Call free on your radio

作者:鲍憷  时间:2019-03-07 03:18:15  人气:

By Barry Fox TIRED of paying for phone calls to speak to friends and family who live close by? A new two-way radio system that goes on sale across much of Europe this week may end the agony. It lets you talk on handsets up to three kilometres apart—with no bills to follow. Personal Mobile Radio handsets will use UHF frequencies cleared for them all across Europe, and the Middle East and Africa will adopt the same bands soon, so you will be able to use the handsets there as well. But the European sets are not compatible with a similar American system, Family Radio Service, which operates on a different frequency. PMRs operate in “over-and-out” style—you push a button to talk and release it to receive. Or a voice-sensitive microphone can switch automatically. Each PMR can work on 38 different channels, but transmission is analogue and conversations are insecure, as they can be heard on radio scanners. Motorola is first on the market with a pair of radios selling for £180,