(38. Answer: secure, classified)
39. The decision to establish wire communications depends on the need for
them, the time available to install and use them, and the capability to main-
tain them. The supply of wire on hand, the expected resupply, and the future
needs must be considered. In other words, whether to use wire is largely a
question that rests on the ________________ , ________________ available, and
capability.
(39. Answer: need, time, maintenance)
40. Although it may take longer to install wire communications than other
means, wire systems can increase communication reliability by serving as an
alternate means. Having an _________________ means enhances the _________________
of communications.
(40. Answer: alternate, reliability)
41. The use of radio is (widespread) (very limited) in the Army. Radio
normally is (more secure than) (as secure as) (less secure than) wire as a
communication medium. Radio (suffers from) (seldom has) problems of inter-
ference. Wire lacks the (reliability) (flexibility) that radio has.
(41. Answer: widespread, less secure than, suffers from, flexibility)
42. The Army employs radio equipment that varies from low-powered voice
radio sets that are lightweight and portable to high-powered multichannel
radio, radio teletypewriter, radiotelegraph (CW), or voice sets of fixed
stations. Practically every commander or leader has suitable radio
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