Relationship between Doppler frequency shifts of two radars A and B having 0.1 foot and 0.05 foot wave-lengths, approaching the target at 1000 feet per second and 2000 feet per second rate, respectively, will be
A. Doppler frequency shift of radar A will be one-fourth of Doppler frequency shift of radar B
B. Doppler frequency shift of radar A will be one-half of Doppler frequency shift of radar B
C. Doppler frequency shift of radar A will be double of Doppler frequency shift of radar B
D. Doppler frequency shifts of radar A and radar B will be same
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Satellite Communication
Collects very weak signals from a broadcast satellite
A. Helical antenna
B. Satellite dish
C. LNA
D. TWT
Is a loss of power of a satellite downlink signal due to earth’s atmosphere.
A. Atmospheric loss
B. Path loss
C. Radiation loss
D. RFI
As the height of a satellite orbit gets lower, the speed of the satellite ___________.
A. Increases
B. Decreases
C. Remains the same
D. None of the above
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