Hi

If:

1)  You have a carrier. Let's say it is an ideal signal with absolutely no 
noise on it.
2) That carrier is in a real 50 ohm system

….there will be thermal noise at -174 dbm per Hz.

The model for a carrier includes both AM noise and PM noise. Correct?

The practical difference for small angle PM vs AM is the phasing of the 
sidebands. Correct?

Either:

a) All of the noise is AM noise. 
b) All of the noise is PM noise.
c) Half of the noise power is AM and half of the power is PM.

Pick one, a,b, or c.

If you pick a or b, *why* and equally importantly *how* does all the random 
thermal noise go only to one process? Since it's (by definition) random 
(amplitude and phase), it's going to be tough to get it all in just one bucket 
or the other. 

If the noise splits equally, then -177 is what you are going to get.

Bob

On Jan 18, 2013, at 11:52 PM, Joe Leikhim <jleik...@leikhim.com> wrote:

> I have just sent off an e-mail to David Howe of NIST Metrology requesting 
> clarification about this assertion that KTB is revised -3dB.
> 
> -- 
> Joe Leikhim
> 
> 
> Leikhim and Associates
> 
> Communications Consultants
> 
> Oviedo, Florida
> 
> jleik...@leikhim.com
> 
> 407-982-0446
> 
> WWW.LEIKHIM.COM
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Reply via email to