Working with dB (decibels)

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entering av1 and av2 in dB makes no diference:

Any tip to avoid pitfalls using dB?.

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V

ValeryOchkovAnswer

24-Ruby IV

Axel Harris wrote:

How do you hide brackets sorrounding N1?

I use the prefix operator:

V

ValeryOchkov

24-Ruby IV

0+0=0

but 0dB+0dB is not equal 0dB

See the picture please

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P

ptc-4582115

Author

1-Visitor

I colorized for clarity.

How do you hide brackets sorrounding N1?

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V

ValeryOchkov

Answer

24-Ruby IV

Axel Harris wrote:

How do you hide brackets sorrounding N1?

I use the prefix operator:

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R

RichardJ

19-Tanzanite

They are not wrong, although they are not necessarily correct either. There is not one way to add values expressed in dB, there are two. And the root of your problem is that you are not distinguishing a dB that represents power (e.g. dBm) and a dB that represents gain. They are not the same thing, and cannot be handled the same way.

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1_Adding-and-Subtracting-values-in-dB-xmcdz.zip