Cordless telecommunications is just another branch of radio communications.1 Its development is rooted in the practical demonstration of mobility by Marconi but its commercial success is only achieved by using the results of the early pioneers, and the many who followed, to make products that the present-day market can accept in terms of applicability, user friendliness, quality, reliability, size, weight, appearance, flexibility, robustness, adaptability, supply, regulatory regime, cost and price. This list (and there are no prizes for adding to it) shows that the product purchasers and/or users are not interested in the radio channel technology. They will not marvel at the cleverness or originality of radio design, but they will expect it to do whatever they wish when they switch on, without having to undergo a training course, and without fail. Even the name cordless telecommunications eschews radio and the basis of product performance comparison will be the wired telephone or terminal with little, if any, licence given to the radio connection. This comparison is inevitable when cordless telecommunications is equated with communications in and around buildings, and not necessarily mobile in character.
KeywordsMicrowave Europe Attenuation Radar Hexagonal
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