Question
an antenna is radiating at a frequency of 10 GHz. What is the free-space path loss at a distance of 3 km from the Tx? Select the correct answer. Handwritten Calculation required. Choice one of the opinion.
a) 100 dBW
b) 100 dBm
c) 122 dB
d) 100 dB
a) 100 dBW
b) 100 dBm
c) 122 dB
d) 100 dB
Answers
Bot
c) 122 dB
Calculation: Path Loss (dB) = 32.45 + 20 log(f) + 20 log(d)
Path Loss (dB) = 32.45 + 20 log(10 GHz) + 20 log(3 km)
Path Loss (dB) = 32.45 + 20(10) + 20(3)
Path Loss (dB) = 122 dB
Calculation: Path Loss (dB) = 32.45 + 20 log(f) + 20 log(d)
Path Loss (dB) = 32.45 + 20 log(10 GHz) + 20 log(3 km)
Path Loss (dB) = 32.45 + 20(10) + 20(3)
Path Loss (dB) = 122 dB