[Elecraft] K3 CONFIG LIN OUT

[K3KO]

Had two reports of  LINE OUT "level" on this posting.

With LIN OUT at 100:

1) 500 -700 rms mv when tuning across band
2) When attached to sound card, max sound card gain had to be used to get
decent signal.

Perhaps LINE OUT levels are indeed too low.

73 de Brian/K3KO


Lyle KK7P wrote:
> 
>> Anybody know just what the voltage range can be put out at the line out
>> jack?  
>> 
>> Since it is pre-AGC it isn't a "constant level" output but instead varies
>> with signal strength.  CONFIG LIN OUT apparently adjusts the level.
> 
> It is in fact post-AGC.  CONFIG LIN OUT adjusts the gain of the post-AGC 
> amplifier that drives LINE OUT.
> 
> Most claims of "constant level" output are actually "fixed gain after 
> AGC", same as the K3.
> 
> Your specific case of 1.7 V RMS is 4.8V p-p.  The driver for the LINE 
> OUT output operates from a 3.3V supply, so it probably will not 
> overdrive your external device in any case.
> 
> 73,
> 
> Lyle KK7P
> 
> (You can measure the output with a multimeter in your particular setup 
> for your particular AGC and other settings.)
> 
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