In this lesson, you learned about the concepts and
also learned about the methods of deception used to confuse or
distract enemy forces.
a. Jamming is the deliberate radiation or reradiation of energy
to prevent or degrade the reception of information by a receiver.
Three methods of communication jamming are commonly used on the
battlefield. Each is used to attack a different signal or signals.
jamming is directed against a single or specific frequency, while
allowing adjacent frequencies to remain free of the effects of the
Barrage jamming is targeted against multiple frequencies.
Sweep jamming is used to block several preselected frequencies.
(2) Various types of signal modulation can be used during
Some of the common modulation types are stepped tones,
bagpipes, gulls, and spark.
directed against non-communications emitters.
(4) The three major systems for jamming missions are ground-
based systems, airborne platforms, and expendable jammers.
factors determine the delivery vehicle.
They include target link
distance, jammer-to-receiver distance, terrain factors, effective
radiated power quotient, signal compatibility, and environmental
b. Control mechanisms are established to ensure the success of
the direction of jamming against HVT.
Positive control mechanisms
ensure that the mission may be terminated at any time.
control mechanisms protect specific frequencies from being jammed,
except as authorized on a jamming restriction list.
c. Electronic deception is normally used to cause the enemy
analysts to misread the situation and provide his commander with
information and intelligence which, while in appearance is accurate,
MED, SED, and IED.
The signal officer plans and executes both MED
and SED. IED is primarily an MI function.