[Elecraft] K3 - diversity reception question

[Dr. Werner Furlan]

Wayne, 

wayne burdick schrieb am 31 Jan 2009 um 9:33:

> This is about an 8 dB drop. The first 3 dB can be attributed to the 
> fact that main and sub are now sharing the main antenna path (the 
> splitter gets turned on). The other 5 dB must be due to some 
> combination of the other factors I listed:
> 
> > 1. band-pass filter alignment and losses
> > 2. 1st mixer loss
> > 3. crystal filter loss
> > 4. crystal filter ripple
> > 5. physical alignment of the SUB AF control (when used as main/sub 
> > BALANCE)
> 
> Are the crystal filters in the two receivers matched? If not, you could be
> using a filter with a lot of loss in the sub vs. the main at a particular
> bandwidth.

no - they are not. I have -0.89 and -0.81 -> both set to -0.85. 

I'll discuss this with Gary like you said. 

tnx, 

73! de Werner OE9FWV


73! de Werner OE9FWV

-- 
I can't walk on water, but I can stagger on alcohol.


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