KC09 - Electronic Support

Question 1

Define the following: Electronic Support (ES)

Answer 1

Actions taken to search for, intercept, locate, record and analyse radiated electro-magnetic energy for the purpose of exploiting these emissions in support of military operations.

Question 2

Define the following: Probability of Intercept (POI), Probability of Report (POR)

Answer 2

A measure of the ESM system’s spatial and frequency coverage. (How likely is it to detect a signal assuming that the signal strength is strong enough).

Question 3

Describe the capabilities and characteristics of an RWR

Answer 3

Detect and Classify threat emitters
Determine direction
Can trigger Counter Measures
Record parameters
Simple Information
Requires very little operator input
Normally inside the battle zone

Question 4

Describe the capabilities and characteristics of an ESM

Answer 4

Detect and Classify threat emitters
Determine direction
Can trigger Counter Measures
Record parameters
Detailed information
Dedicated operator
Normally outside the battle zone - more sensitive

Question 5

Explain threat library ambiguity

Answer 5

Ambiguity occurs when different threats have the same parameter
System cannot distinguish between 2 emitters, therefore ambiguity exist

Question 6

List common ES receivers direction-finding techniques

Answer 6

• Spinning antenna (Directional)
• Amplitude Comparison
• Interferometer
• Time distance from arrival

Question 7

Define Probability of Report (POR)

Answer 7

POR is the probability that an intercepted signal will be correctly identified and displayed within a set time limit.