1-8. Remember the five objectives of ECM are--
a. _______________ ______________ of necessary radio communications.
b. _______________ ______________ of normal radio communications.
c. _______________ ______________ by overloading nonradio facilities with radio
traffic.
d. _______________ ______________ by provoking operators into breach of security.
e. _______________ ______________ by threatening ECM.
(1-8. Answer: deny use, reduce range, slow communications, gain intelligence, cause
expense)
1-9. One of the basic types of ECM applied against communications systems is jamming.
Communications jamming is the deliberate interference with communications systems by
electronic means.
In other words, deliberately interfering with radio signals by unwanted signals is known
as __________________________.
(1-9. Answer: jamming)
1-10. If jamming is to be effective as an electronic countermeasure, a jamming transmitter must
put out a strong, continuous signal at the same frequency as the signal being jammed. If the
jamming signal is NOT strong or continuous, information will come through; therefore, the
jamming has not been _______________________________.
(1-10. Answer: effective)
SS0652
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