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4.3.7decibels
1. Structured Cabling System Loss or Gain Power base 10 bel decibels X0.001 10 -3 -3 -30 X0.01 10 -2 -2 -20 X 0.1 10 -1 -1 -10 X 1 100 0 0 X 2 100.3 0.3 3 X 10 101 1 10 X 50 101.7 1.7 17 X 100 102 2 20 X 1000 103 3 30 X 10000 104 4 40 X 100000 105 5 50 X 1000000 106 6 60
2. Structured Cabling System Loss (-), Gain (+) Percentage change in signal level -40dB 99.99% power loss -30dB 99.9% power loss -20dB 99% power loss -10dB 90% power loss -3.0dB 50% power loss -2.0dB 37% power loss -1.0dB 21% power loss 0.0dB No gain or loss +1.0dB 2% power gain +2.0dB 5% power gain +3.0dB 100% power gain
