Satellite Communication - Study Mode
[#106] A radar system that can determine both target range as well as target velocity is
Correct Answer
(A) Pulsed radar
[#107] The orbital satellites are
Correct Answer
(D) non synchronous
[#108] The orbital period of a satellite in a circular orbit of 500 km above the Earth's surface, taking mean radius of the Earth as 6400 km and Kepler's constant µ as 4 × 10 5 km 3 /s 2 nearly
Correct Answer
(A) 1.6 hours
[#109] An automotive radar operates at a frequency of 8 GHz. The Doppler shift due to an automobile directly approaching the radar at a speed of 160 km per hour is
Correct Answer
(A) 2.37 kHz
[#110] The output stage of a transponder on board a satellite has a maximum power output of 10 watts. However, it is not operated at the maximum power output in order to
Correct Answer
(A) Conserve the available limited battery power