TM 11-5840-281-12-1
2-16. JAMMING AND ECM PROCEDURES. (CONT)
COUNTERMEASURES, REPORTING AND RECORDING
Immediate reporting of countermeasures and accurate, complete recording of countermeasures reception for additional
reports are important responsibilities of the radar operator. The initial report alerts command that countermeasures are
being used; and countermeasures usually indicate an impending enemy action. Detailed records, Included In subsequent
reports, inform higher authorities of the countermeasure capabilities of the enemy. Follow the procedures given in local
SOP for reporting and recording countermeasures.
ANTIJAMMING PROCEDURES
The following methods and techniques are applicable for all scan modes of operation. They are arranged in the following
order In consideration of their ease of performance and probable effectiveness.
Reflected Jamming
1. Place TRANSMITTER switch (1) to NAR PLS position.
2. Press HV ON switch (2). Indicator light in switch will light.
3. Place FTC switch (3) in LIN or LOG position.
4. Being careful not to lose target, rotate IF GAIN AZ (4) and IF GAIN EL (5) controls
5. Place ANT POL switch (6) to CIR position. CIR indicator (7) will light, LIN indicator (8) will extinguish, and
maximum detection range will be reduced approximately 20 percent.
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