VOLUME I Multinational Maritime Tactical Instructions and Procedures

MTP 1(D), Vol. I
c. Acoustic Warfare (AW). Military action to use the underwater acoustic spectrum to the
advantage of friendly forces by exploiting enemy emissions and controlling friendly emissions.
There are three divisions within AW:
(1) Acoustic Warfare Support Measures (AWSM). That division of AW involving actions
to search for, intercept, and identify radiated underwater acoustic energy for the purpose of exploiting
such radiation. The use of AWSM involves no intentional underwater acoustic emissions and is generally
not detectable by the enemy.
(2) Acoustic Countermeasures (ACM). That division of AW involving actions taken to prevent
or reduce an enemy’s effective use of the underwater acoustic spectrum. ACM involves intentional
underwater acoustic emissions for deception or jamming.
(3) Acoustic Protective Measures (APM). That division of AW involving actions taken to
ensure friendly effective use of the underwater acoustic spectrum, despite the enemy’s use of acoustic
energy. APM involves anti-AWSM and anti-ACM, and may not involve underwater acoustic
emissions.
(R)
d. Acoustic Spectrum (Freq KHZ)
ULFA
ELFA
VLFA
LFA
MFA
HFA
VHFA
UHFA
SHFA
FROM
-
0.001
0.01
0.75
3
15
100
300
500
TO
0.001
0.01
0.75
3
15
100
300
500
+
e. The three divisions of electronic and acoustic warfare are parallel and complementary.
f. Frequency Management. Ensure frequency deconfliction and coordination, with particular
concern that safety frequencies are adequately assigned, throughout the force.
5110 DIRECTION AND COORDINATION
5111 GENERAL
The OTC/CWC is responsible for EAW; he may delegate functions in Table 1-8 to an Electronic
Warfare Coordinator (EWC) and Table 1-4/1-8 to an Antisubmarine Warfare Commander (ASWC). To
best exploit its potential, EAW policies and activities must be harmonized with other warfare policies and
activities. The OTC/CWC promulgates the Emission Policy (EP) for the force, which will be reflected in
the Emission Control Plan (EMCON Plan). To accomplish the mission, the electromagnetic and acoustic
environment in which the force will operate is a major factor of the situation assessment.
5112 FUNCTIONS WHICH MAY BE DELEGATED TO EWC/ASWC
a. Formulation of EMCON Plans. The EWC and the ASWC are the OTC’s/CWC’s principal
advisors on the formulation of his Emission Policy (EP). Once the OTC/CWC promulgates the EP, the
ASWC will develop the acoustic portions of the EMCON plans and the EWC will develop the electronic
5-2 CHANGE 2