[Elecraft] Re: K3: listening to both rcvrs - Reduced receiver noise floor

Kok Chen chen at mac.com
Mon Nov 17 18:10:34 EST 2008


On Nov 17, 2008, at 3:01 PM, Kok Chen wrote:

> Prob( (s+n1+n2)^2 ) = Prob(s^2 + n1^2 + n2^2 + n1.n2 + s.n1 +  
> s.n2).  If s, n1 and n2 are uncorrelated, then Prob(n1.n2) =  
> Prob(s.n1) = Prob(s.n2) = 0.


Whoops, that should be

Prob( (s+n1+n2)^2 ) = Prob(s^2 + n1^2 + n2^2 + 2.n1.n2 + 2.s.n1 +  
2.s.n2)  (I should have counted that there are 9 terms altogether on  
the right hand side :-).

But the average of ( n1.n2 ) = 0 implies that the average of  
( 2.n1.n2 ) is also identically zero, etc...

73
Chen, W7AY





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