[AMPS] dBc and dBu ???

[Jon Ogden]

>Can anyone tell me what the terms dBc and dBu mean, in the context of
>distortion and noise performance in audio amplifiers?  Would dBu mean
>dBmicrowatt?

dBc means: DB in reference to a carrier.

Typically this is used for IM measurements or harmonic measurements.  If 
an amp has an IM level of -40 dBc, that means the IM products were 40 dB 
below the carrier signal.

I am not sure what dBu is.  Could be dB referenced to microvolts.

73,

Jon
KE9NA

--------------------------------------------------------------------------
The Second Amendment is NOT about duck hunting!


Jon Ogden

jono@enteract.com
www.qsl.net/ke9na

"A life lived in fear is a life half lived."


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