1-56. If the station to which a call sign is assigned fails to answer, the enemy station can accept
the message and acknowledge receipt. By doing so, the enemy can suppress high-priority traffic
which no friendly station has been able to copy completely and correctly. The enemy can use
imitative deception by using the ________________ ________________ of a friendly station to
answer net calls and accept traffic.
(1-56. Answer: call sign)
1-57. A delaying tactic often used by the enemy is to offer _____ traffic that cannot be decoded.
(1-57. Answer: coded)
1-58. To delay communications, the enemy can change his CW ______, __________________
characteristics, and __________________ to resemble the friendly station he is imitating.
(1-58. Answer: tone, keying, frequency)
1-59. An enemy operator can also pretend to have important traffic, causing delays and creating
confusion. He can induce several stations to answer with a go-ahead signal, and then pretend not
to hear their signal and can call repeatedly. The resulting confusion effectively delays
__________________ traffic.
(1-59. Answer: important)
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SS0652
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