On Sun, Apr 11, 2010 at 10:12 AM, Sebastiaan Heunis <sheu...@gmail.com> wrote:
> Hi everyone.
>
> I was wondering if someone could please answer the following question?
>
> If I have two signals entering a receiver, both with a power of 0 dBm,
> what would be the total input power seen by the receiver?  Is it 3 dBm
> or 6 dBm?

Bringing it back to power instead of ratios helps clear this up.  Both
transmitters are emitting 1mW, for a total input power of 2mW.

Calculating dBm on that yields:

  10*log10(2mW/1mW) = 3dBm

Hope this helps!

> Thanks.
>
> Sebastiaan

Brian


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