a. The power level at 10 meters is 100 mW. At 20 meters, it is 5 mW.
Question:
a. The power level at 10 meters is 100 mW. At 20 meters, it is 5 mW. How many decibels has it lost?
11a.) Which is the correct formula for decibels?
a. 10 × P2/P1
b. 10 × (P2/P1)2
c. Log10(P2/P1)
d. None of the above
b. Compared to an omni-directional antenna, a dish antenna quadruples radiated power. How much is this change in decibels?
11b.) Compared to an omni-directional antenna, a dish antenna quadruples radiated power. How much is this change in decibels?
c. Compute the decibel value for a power ratio of 17:1.
d. Of 1:33.
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a P1 100 P2 5 Ratio 005 Log10P2P1 130103 Times 10 130103 Answer 130103 dB Distan...View the full answer
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Business Data Networks and Security
ISBN: 978-0134817125
11th Edition
Authors: Raymond R. Panko, Julia L. Panko
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