No, he's right. dBm is an absolute unit, dB is a relative.<br>But the difference between dBm is in dB, so 9 dBm + 3 dBm (delta 3 dB) is double the power (in Watt).<br><br><div class="gmail_quote">On Sun, Jun 15, 2008 at 1:48 AM, Greg Bonett <<a href="mailto:greg@bonett.org">greg@bonett.org</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">Federico Lorenzi wrote:<br>
><br>
> Remember that every 3dBm is 2x power output, and 10nW(-50dBm) power output?<br>
><br>
> Cheers,<br>
> Federico<br>
><br>
><br>
</div>Slight correction:<br>
Every 3dB is 2x power, 3dBm is about 2mw (not a relative power, but an<br>
absolute).<br>
<font color="#888888"><br>
-Greg<br>
</font><div><div></div><div class="Wj3C7c"><br>
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