[Elecraft] K3 - diversity reception question

[Dr. Werner Furlan]

hi Wayne, 

wayne burdick schrieb am 30 Jan 2009 um 13:29:

> Using the MAIN antenna for the subreceiver switches in a -3 dB pad, 
> which is required to split the path to the two receivers. This results in
> about a 3 dB signal attenuation in both. This may be part of what you're
> hearing.
> 
> There also may be slight differences in overall path gain between the two
> receivers, even when configured identically. Here are some contributing
> factors:
> 
> 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)
> 6. ears
> 
> It's quite plausible that overall receive gain could, therefore, differ by
> a few dB between main and sub receivers.
> 
> You could use the K3's built-in true-RMS AF voltmeter functions to 
> determine the exact amount, on each band (AFV/dBV).

I think I need some help with this. 
I have connected a noise gernerator to my ANT1 and I see AFV floating 
between 622 and 702 with SUB engaged,  and 1578 and 1719 without SUB. 
(this was on 3.670 kHz)

73! de Werner OE9FWV




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