text: Communications
  ELECTRONIC ATTACK
  6-56. That division of EW involving the use of the electromagnetic energy, directed energy, or
  antiradiation weapons to attack personnel, facilities, or equipment with the intent of degrading,
  neutralizing, or destroying enemy combat capability and is considered a form of fires (FM 1-02).
  ELECTRONIC WARFARE SUPPORT
  6-57. That division of EW involving actions tasked by, or under the direct control of, an operational
  commander to search for, intercept, identify, locate or localize sources of intentional or unintentional
  radiated electromagnetic energy for the purpose of immediate threat recognition, targeting, planning and
  conduct of future operations (FM 1-02).
  ELECTRONIC PROTECTION
  6-58. That division of EW involving passive and active means taken to protect personnel, facilities, and
  equipment from any effects of friendly or enemy employment of EW that degrade, neutralize or destroy
  friendly combat capability (FM 1-02). LRSU are primarily concerned with electronic protection.
  METHODS
  6-59. These refer to anything a LRSU does to prevent or reduce the effectiveness of enemy EW and
  enhance electronic protection.
  Security Tasks
  6-60. Emission security includes--
  • Using brevity lists.
  • Masking antenna locations.
  • Using directional antennas.
  • Using the lowest possible output power.
  6-61. Transmission security includes--
  • Using voice communication only when essential.
  • Developing and using brevity lists.
  • Minimizing transmission time.
  • Planning messages.
  • Encrypting messages.
  6-62. Cryptograph security includes--
  • Exclusive use of authorized codes and key lists only. Only National Security Agency (NSA)-
  approved codes are authorized for encoding and decoding US Army message traffic. The same
  is true of mechanical cryptograph systems.
  • Physical security of all cryptograph and equipment. This includes a comprehensive and
  workable plan for the destruction of material and equipment. It also includes the SOPs that
  identify to all team members where material and equipment are kept by the RTO. Table 6-10
  shows the priority for destroying material and equipment.