EXW COMMS Flash Cards

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Title: EXW COMMS
Description: EXW Training 2008
Number of Cards: 23
Save Count: 3
Author: brandon.ross8
Created: 2008-12-16
Tags: comms exw
Private No

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    • Question
    • Answer
    • Side 3
    • Q: What must you take into account when planning to use RF communications?
    • A: Distance you want to cover.
    • Q: What are the 2 basic classifications of most practical transmitting antennas?
    • A: Hertz Antennas (half wave)
      marconi (quarter wave)
    • Q: What is DAMA?
    • A: Demand Assigned Multiple Access subsystem. Used for secure voice, CUDIXS/NAVMACS and teletypwriter.
    • Q: Describe the following:
      AN/PRC-148
      AN/PRC-150
      AN/PSC-5D
    • A: AN/PRC-148 is a hand held VHF/UHF radio. When used as VHF, limited by curveture of the earth. Max range of 12 miles.
      AN/PRC-150: manpack HF/VHF radio. Used primarily for HF. Limited by curvature of the earth when used in VHF.
      AN/PSC-5D: manpack VHF/UHF radio. Max power is 20 watts. range is limited by curvature of the earth when used in VHF.
    • Q: What is the phonetic alphabet and numerals used for?
    • A: Used to spell difficult words and transmit encrypted messages.
    • Q: What are PROWORDS?
    • A: Designated words used to describe or mark a specific event within a mission.
    • Q: What are the three types of non oral comms?
    • A: Semaphore
      Morse code
      visual signs
    • Q: What is the COMSEC BIBLE?
    • A: EKMS1
    • Q: What does the CMS custodian ensure?
    • A: COMSEC security, accountability and disposition. Ensures TPI.
    • Q: Describe TPI.
    • A: Two person integrity.
      Designed system to prevent single person access to certain COMSEC material.
      Any Top-Secret material has to be checked out IAW TPI.
    • Q: What are the 3 COMMS Frequencies?
    • A: HF (3-30MHz)
      VHF (30-300 MHz)
      UHF (300MHz-3GHz)
    • Q: What is EEFI?
    • A: Essential Element of Friendly Information.
      The pieces of knowledge that would damage the security of the unit if revealed.
    • Q: When is a BEADWINDOW report issued?
    • A: Anytime a station leaks EEFI. Issued by Net Control Station. "Roger Out" is the only response to a BEADWINDOW.
    • Q: What is the ability and opportunity to obtain knowledge of classified info?
    • A: Access
    • Q: A specific degree of protection against unauthorized disclosure is known as what/
    • A: classification
    • Q: ______ is a security violation that has resulted in confirmed or suspected exposure of classified info to unauthorized personnel.
    • A: Compromise
    • Q: What is need-to-know?
    • A: Determination made by authorized holder of classified info that prospective recipient requires access to specific classified info.
    • Q: What is a formal determination that a person meets the personnel security eligibility standards and is afforded access to classified info?
    • A: Clearance
    • Q: What are the different RF switch positions and their ranges?
    • A: LO (200M-400M)
      M (400M-5KM
      HI (5KM-10KM)
    • Q: What are the 3 layers of the Earth's atmosphere?
    • A: Troposphere: Lowest layer. Virtually all weather happens here.
      Stratosphere: Second layer that has little affect on radio waves.
      Ionosphere: Highest level made up of 4 layers of cloud like electrically charged ions.
    • Q: Is ocean water a good cunductor?
    • A: Yes
    • Q: Why is the conductivity poor in Iraq?
    • A: Because we are in the middle of the fucking desert!
    • Q: What is caused by elctromagnetic radiation from electrical circuits, causing unwanted signals?
    • A: Electromagnetic interference (EMI)