Satellite Communication Multiple Choice Questions and Answers

41. What are the methods of multiple acess techniques?

1. TDMA
2. FDMA
3. a&b
4. None of above

42. Argument of perigee?

1. The angle from ascending node to perigee, measured in the orbital plane at the earth’s center, in the direction of satellite motion.
2. The point longest from earth
3. The point closest approach to earth
4. None of the above

43. Keplers first law states?

1. The path followed by a satellite around the primary will be an ellipse.
2. The path followed by a satellite around the primary will be an circle.
3. The path followed by a satellite around the primary will be an sphere
4. None of the above

44. Apogee?

1. The point farthest from earth
2. The point nearest from earth
3. The point smallest from earth
4. None of the above

45. Perigee?

1. The point farthest from earth
2. The point longest from earth
3. The point closest approach to earth
4. None of the above

46. Ascending node?

1. The point where the orbit crosses the equatorial plane going from south to north
2. The point longest from earth
3. The point closest approach to earth
4. None of the above

47. Define S/N ratio.

1. The S/N introduced in the preceding section is used to refer to the ratio of signal power to noise power at the receiver output.This ratio is sometimes referred to s the post detector.
2. The S/N introduced in the preceding section is used to refer to the ratio of signal power to noise power at the receiver input. This ratio is sometimes referred to as the post detector.
3. Either a or b.
4. None of above

48. Define diplexer.

1. The transmit & receives signals are separated in a device known as diplexer.
2. The transmit & receives signals are separated in a device known as diplexer
3. Either a or b.
4. None of above

49. True anomaly?

1. The true anomaly is the angle from perigee to the satellite position, measured at the earths center.
2. The point longest from earth
3. The point closest approach to earth
4. None of the above

50. As on-line, real time data transmission system is most likely to require a connection that is

1. Time shared
2. Frequency shared
3. Simplex
4. Duplex