IDW: TechFundamentals/OPSEC/Security Flashcards
Wavelength
Physical distance of a wave or cycle
Frequency
Number of cycles that occur in one second; usually in hertz.
Ducting
Temperature or moisture conditions in atmosphere that allow a greater bending of radio waves.
Refraction
Waves that changes direction when passing from one medium to another.
Multiplexing
For simultaneous transmission of two or more signals over a common carrier wave.
Modulation
Impressing intelligence upon a transmission medium.
Demodulation
Removal of intelligence from a transmission medium.
Bandwidth
Space within the (RF) Radio Frequency spectrum that’s signal occupies; expressed in Hertz.
Keying
Inserting noise or data onto a frequency.
Propagation
Movement through a medium.
Continuous Wave
Unmodulated frequency that doesn’t carry additional modulated intelligence and is transmitted for use in some radio transmissions.
Azimuth
Angular measurement in the horizontal plane used in reference to altitude.
Define Operational Security.
Systematic, proven process that identifies, controls and protects generally sensitive, but unclassified information about a mission, operation or activity.
Air Search RADAR
Detect & determine position, course & speed of air targets; used as early warning devices.
Surface search RADAR
Used to detect presence of surface craft & low flying aircraft/navigational aid in coastal waters and poor weather conditions.
Fire Control RADAR has how many phases?
Three
What are the 3 phases of Fire Control RADAR?
Designation - Radar is directed to general location of desired target.
Acquisition - Radar searches small volume of space in a prearranged pattern until target is located.
Tracking - Once target is located, radar system automatically follows target motions.
What is the 5 step planning process?
Identify Critical Information (CI)
Analyze the threat
Analyze the vulnerabilities
Assess the risk
Apply the countermeasures
PAO
Target Audience - Public
Intent - Inform
Method - Public Release
OPSEC
Target Audience - Adversary
Intent - Deny
Method - Five-Step Process