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37. The point where the antenna is mounted with respect to the parabolic reflector is called 38. Using a small reflector to beam waves to the larger parabolic reflector is known as 39. Increasing the diameter of a parabolic reflector causes which of the following and 40. A helical antenna is made up of a coil and a 41. The output of a helical antenna is 42. A common omnidirectional microwave antenna is the Chapter 11: Introduction to Sat-Com 1. As the height of a satellite orbit gets lower, the speed of the satellite 2. The main functions of a communications satellite is a a(a) 3. The key electronic component in a communications satellite is the 4. A circular orbit around the equator with a 24 h period is called a(n) 5. A satellite stays in orbit because the following 2 factor are balanced 6. The height of a satellite synchronous equatorial orbit is in a 7. Most satellites operate in which frequency band? 8. The main power sources for a satellite are 9. The maximum height of an elliptical orbit is called