j antenna การใช้

• The traditional J antenna and SlimJIM variation are nearly identical in gain and pattern.
• The Super-J antenna compresses the vertical beamwidth and has more gain than the traditional J-pole design.
• R & J Antenna black as in the Brazilian " protesilaus " : frons laterally white; the white subdorsal line of the abdomen thin; 1 . and 2 . band of the forewing extend to the hindmargin, 6 . band separated from the angle of the cell; the black markings of the hindwing somewhat more developed than in " hetaerius ", the red anal spot longer; tail long and broad.
• R & J Antenna brownish yellow; the black lateral stripe of the abdomen as broad as the yellow-white stripe placed at its dorsal side; 1 . and 2 . band of the forewing broad, the 1 . not extending to the hindmargin, the other bands likewise broad, the 6 . especially is broader than in all the other forms of the " protesilaus " group, being at least as broad as the inter-space between bands 5 and 6; this 6 . band close to the lower angle of the cell.