A31. Directivity increases.
A32. Lower radiation resistance.
A33. Parallel and in the same plane.
A34. They sharpen.
A35. Extremely low radiation resistance, confined to one frequency, and affected by atmospheric
A36. Along the major axis
A38. Length of the parasitic element (tuning) and spacing between the parasitic and driven elements.
A39. Increased gain and directivity.
A40. Rotary array.
A41. Their adjustment is critical and they do not operate over a wide frequency range.
A42. Increased gain.
A43. Multielement parasitic array.
A44. One-half wavelength.
A45. Wave antenna.
A47. It requires a large antenna site.
A48. For omnidirectional vhf communications.