How to change Vrms to dBm?

From: ElectricQuadrupole@xxxxxxxxx
Date: Tue, 18 Mar 2008 02:10:22 -0700 (PDT)

Hello,

I have a power spectra in dB relative to 1Vrms / sqrt(Hz) and I want
to change units to dBm (dB power relative to 1mW). Signal was measured
at 1 kOhm load. How to change this units?

E.C.
.

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