[Boatanchors] Microphone Output

[D C _Mac_ Macdonald]

Or it might be 0 dBmv which is 1 millivolt rms. 
However, these values must be referenced to 
the load resistance!  AND, if I'm not mistaken, 
reference dB values are actually given based 
on power; dBmw, dBw, etc.  It is common, 
though to quote them based on either power 
OR voltage.  Of course, a given value means 
different things depending upon the system. 
Full details must be given to mean ANYTHING!
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk at hotmail.com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 
 
> From: mwtallent at comcast.net
> To: Boatanchors at mailman.qth.net
> Date: Fri, 11 Jan 2013 10:56:01 -0500
> Subject: Re: [Boatanchors] Microphone Output
> 
> Usually is 0 DBv which is 1 V rms.
> 
> Mike Tallent
> 
> ----- Original Message ----- 
> From: "David C. Hallam" <dhallam at knology.net>
> To: <Boatanchors at mailman.qth.net>
> Sent: Friday, January 11, 2013 10:17 AM
> Subject: [Boatanchors] Microphone Output
> 
> 
> > When a microphone output is given at say -52db, what exactly does that 
> > mean? -52db referenced to what?
> >
> > David
> > KW4DH