[Elecraft] K3: PRE/ATT Bug or feature?

Tom W8JI w8ji at w8ji.com
Tue Aug 10 13:28:01 EDT 2010


> This is NOT a bug, this is working EXACTLY as it should.  Some time you 
> want to have a little extra gain, but not as much as the Pre does alone. 
> In this case you will run the Pre ON, and the ATT on at the same time.  No 
> bug there.  Just another way Elecraft has made the K3 a versatile rig for 
> finding weak signals in a loud noise floor.


The question is not gain, because 2 dB of additional gain is not 
significant.

The question is how running both the preamp and attenuator affects dynamic 
range. It probably decreases dynamic range.

I guess no one has measured it. 



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