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52 Cards in this Set
- Front
- Back
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What is the mission of Communications security? |
COMSEC is the mission to provide security to naval communications and communications material
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What is CMS?
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Communication security material system. |
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What is the job of the CMS custodian?
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To ensure proper handing, distribution, control, and security of COMSEC material. |
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What is TPI (Two-person integrity) as it pertains to Comms?
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TPI is used when dealing with top secret and controlled information. Personnel are normally not permitted to work alone. |
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What is Encryption?
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The process of turing intelligible information into non-intelligible infromation |
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What is Access?
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Having a security clearance giving you access to information up to the level of clearance |
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What is Classification?
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Information is classed when it requires protection in the interest of national security
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What is compromise?
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Any breach or expected breach of security or classified material. When discovered it must be dealt with immediately. |
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What is need to know information?
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having access to information that you are eligible to access under your security level |
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What is an exclusion area?
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an area that may contain classified material |
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What is a limited area?
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An area with classified information that a visitor could gain access to
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What is a controlled area?
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the area next to or surrounding an exclusion or limited area. |
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Flash Message |
-used for initial enemy contact messages. |
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Immediate message |
-Used for messages that gravely affect the security of us forces.
-Must be processed, transmitted and delivered in front of priority and routine messages -time to deliver is 30 minutes |
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Priority Message |
-used for messages that require expedious action by the addressee
-Delivery has to be ahead of all routine messages -Delivery time has to be between 30 mins to 3 hrs. |
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Routine Message |
-Used for messages which justify rapid means of transmission.
-Delivery has the lowest priority. -Time to deliver is between 3 and 6 hrs. |
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What does it mean to minimize communications? |
To reduce radio communications to a level to where only emergency messages are transmitted. |
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What does EEFI mean and what is it?
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Essential Elements of Friendly Information.
A code that notifies one another of a security breach that has occured over the circuit. |
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What is the range of HF (High Frequency) radios?
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3 - 30 MHZ |
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What is the range of VHF (Very High Frequency) radios? |
30 MHZ to 300MHZ |
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What is the frequency range of UHF (Ultra High Frequency) radios? |
300 MHZ to 3,000MHZ (or 3 Ghz).
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What type of information is classified confidential?
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Identifiable damaging information. |
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What type of information is classified secret? |
Seriously damaging information
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What type of information is classified top secret?
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Exceptionally grave damage information |
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When precautionary destruction of materials is ordered what is the order of destruction of comsec material and information? |
-Keying material
-Non-essential classified COMSEC documents. |
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When complete destruction is ordered what is the order of destruction of COMSEC material and information? |
Keying material |
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When destroying Keying material, what order is it destroyed in?
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Superseded
Effective Reserve |
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What is the An/psn-13? |
Defense Advanced GPS Receiver (DAGR) GPS devise using Satellites to find position. Used for accurate time for comms gear. |
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What are the three methods of communications?
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Wire |
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How do field radios work? |
Field radios work by line-of-sight from the radio to the transmitting station. |
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What factors may effect radio communications in the field?
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Valleys, Densely wooded areas, low lying areas, and sources of electrical interference. |
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What is the purpose of the STU/STE Phone? |
To allow voice communication when needed. |
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How many comsec channels does the AN/PRC-119A have?
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6 COMSEC channels
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What are the three types of antenna's and their ranges?
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3ft tape: 5 Miles |
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How many single channels for text does the AN/PRC-119A have? |
8 Single Channels
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How long do batteries last in the AN/PRC 119A?
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4 to 30 hrs depending on use. |
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What is the frequency range of the AN/PRC 119A? |
30-87.975 MHZ (VHF)
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What are the dimensions of the OE-254?
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13m x 8m
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What is the frequency range of the AN/PRC-150? |
1.6 - 59.99 MHZ |
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Does the AN/PRC-150 require an external encryption device?
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No, it has an embedded US type 1 encryption |
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What is the weight of the An/PRC 150? |
10 lbs without batteries
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What are the two radios mounted in a vehicle? |
The AN/VRC 90 and AN/VRC 92A.
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What is the AN/GRA 39?
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Radio Set Control Group that provides the capibility to remotely controlling a radio set up to a distance of 2 miles by standard field wire. |
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What is the AN/CYZ-10 used for? |
The "crazy" 10 is an encryption device used to encrypt comsec material |
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What does CCIR stand for? |
Commander's Critical Information Requirement
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What is SINCGARS? |
Single Channel Ground and Airborne Radio System
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What does CEOI stand for?
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Communication Electronic Operation Instruction
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Three categories of COMSEC incidents |
i. Cryptographic ii. Personnel iii. Physical |
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Three different types of Supersessions |
Regular Irregular Emergency |
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RT 1694 |
HF, Fixed Channel, Freq HOP 1.6 – 59.9999MHz 10 WHip anntenna PRC/150 - VRC/104 Not in Kabul |
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RT 1523 |
VHF, LOS, Frequency HOP 30-87.975 MHz 3, 10, OE254 PR/119 - VRC/90
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RT 1796 |
VHF/UHF, SATCOM voice, data, , freq hopping 30-512 MHz SATCOM Antenna PRC/117 - VRC/103
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