text: Communications
  Figure 6-23. High frequency antenna, "V" type.
  Figure 6-24. Sloping antenna, "V" type.
  ANTENNA, AN/GRA-50
  6-128. The AN/GRA-50 antenna is a component of the AN/PRC-104, AN/GRC-213, and AN/GRC-193
  and can be used with modern radio systems. It is a half-wave, dipole-type antenna. This means that it can
  be used for long- (2,500 miles) or short-range, near-vertical-incidence, sky wave (0 to 300 miles)
  messages. (See TM 11-5820-467-15 for more detail.)
  ANTENNA, AS-2259/GR
  6-129. The AS-2259/GR antenna has two inverted "V" dipoles positioned at right angles. It uses a
  foam-electric center pole as its coaxial. It is used for short-range (NVIS, from 0 to 300 mile) messages.
  (See TM 11-5985-379-14&P for more detail.)