text: Chapter 6
  Length (in meters) = (150.00 x 0.95) = 142.50 Frequency in MHz
  Length (in feet) = (492.00 x 0.95) = 468.00 Frequency in MHz
  For harmonic operation, calculate the length of a long-wire antenna
  (one wavelength or longer) as follows:
  Length (in meters) = (150.00 x (N--0.05)) / Frequency in MHz
  Length (in feet) = (492.00 x (N--0.05)) / Frequency in MHz
  Where N = the number of half-wave lengths in the total length of the antenna.
  For example, if the number of half-wavelengths is 3 and the frequency in MHz is 7, then--
  If length (in meters) = (150.00 x (N--0.05)) / Frequency in MHz
  Then (150.00 x (3--0.05)) / 7
  (150.00 x (2.95)) / 7
  (442.50 / 7)
  so length in meters = 63.20
  Figure 6-14. Formula for calculating length of half-wave dipole antenna applied to example.
  INVERTED "V"
  6-110. The inverted "V" or "drooping dipole" antenna (Figure 6-15) is similar to a dipole antenna, except
  that it only requires one center support. Like a dipole, it is used for a specific frequency, and it has a
  bandwidth of plus or minus 2 percent of design frequency. Because of the inclined sides, the inverted "V"
  antenna produces a combination of horizontal and vertical radiation; vertical off the ends and horizontal
  broadside to the antenna. All the construction factors for a dipole also apply to the inverted "V." Although
  the inverted "V" has less gain than a dipole, the fact that it only requires one support makes it the preferred
  antenna in some tactical situations.
  Figure 6-15. Inverted "V" antenna.