[BC] Fallout from cuts

[Mike McCarthy]

dB above uV is accurate...in RF.  HOWEVER, there are TWO. As you 
point out, in RF it is that across 50 ohms.  But it is equally 
applicable in audio referencing 10K ohms at 0.775V.  Or zero dB above 
Unloaded/Unterminated 0.775V

MM

At 06:27 PM 5/1/2008 -0500, Gary Glaenzer wrote
>0 dBm is 0.7749 VAC across 600 ohms
>
>'dBu' is generally reserved for field strength measurements, 'X' db in
>relationship to 1 micro (u) volt