What do the I's stand for in attenuation and power loss equations?

Thread starter calculator20
Start date Mar 25, 2014
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Attenuation Loss Power Power loss

AI Thread Summary

In the context of attenuation and power loss equations, "I1" typically represents the input power, while "I2" denotes the output power. The formula attenuation = 10 log (I1/I2) is used to calculate the loss in signal strength as it travels through a medium. Confusion arises because some examples may present the terms differently, but the standard convention is to consider I1 as the initial power and I2 as the final power. Understanding this distinction is crucial for accurate calculations in telecommunications and signal processing. Clarifying these definitions ensures proper application of the logarithmic equations in practical scenarios.

Mar 25, 2014

calculator20

I'm revising attenuation and power loss logarithmic equations.

The exam formula I'm given is attenuation = 10 log (I1/I2)

I'm trying to confirm what each I stands for.

Some of the examples I'm looking at seen to give input/output power, some seem to reverse it. Which is right? What do they stand for?

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Mar 25, 2014

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