writing, images and sounds of intelligence of any nature." In view of this, it appears that the ITU has competence to deal with the indicated type of transmissions including microwave (electromagnetic) transmissions which involve "signs, signals, writing, images and sounds of intelligence." The next issue is whether the use of microwaves for power transmission involves transmission of "signs, signals, writing, images and sounds of intelligence." If it does not then ITU has no competence to deal with frequencies for such microwaves. Power transmission by microwaves does not appear to involve anything that is normally identified by the words "sign, writing, image and sounds of intelligence". Therefore, the question is whether it could be regarded as a 'signal*. There are two possible answers to this question depending on the interpretation of the word * signal'. The relevant dictionary definition of the word 'signal* is an "impulse or sound wave transmitted or received". Microwave under this definition may be interpreted to fall under the category of an impulse, irrespective of the purpose for which the microwave is being used. Another definition of 'signal* relating specifically to communications is "an event that serves, or at least is capable, to start some action. Also under this definition microwaves for power transmission would appear to be signals. However if the word 'signal' is interpreted as a means of communication or telecommunication in the more conventional sense of the term, it becomes apparent that communication or telecommunication would have to be defined even though such procedure may
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