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what is dB loss?
Name: lew Date: December 8, 2002 at 22:11:28 Pacific OS: Win98 CPU/Ram: 128
Comment:
what is dB loss? i've heard it refered to when talking about fiber and connection problems.
Name: Brian Rignall Date: December 9, 2002 at 02:17:31 Pacific
Reply:
As a signal passes through the conductive material, some of its initial 'strength' or power is lost. Also the conductor itself can introduce noise, either by induction or external interference. The unit of measure for this SIGNAL to NOISE ratio is decibels [dB].
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Response Number 3
Name: Daniel Clarke Date: December 10, 2002 at 08:57:02 Pacific
Reply:
DB loss is the logarithm of the ratio of the end signal to the original signal.
No loss, 0dB, means that the signal power out is the same at that applied - great.
Number of DBs = 10 log(P2/P1) where Pi is the power of the signal.
Note that when you use sound pressure levels you must use 20 log (S2/S1), since log(a^2) = 2log(a)
Summary: what is LM announce stands for in neighbourhood properties -> file and printer sharing for microsoft networks. And what happened when i off/on the value..? ...
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