[Elecraft] K3 Line out level and Digikeyer

[Joe Subich, W4TV]

Trevor, 

If you have AGC enabled in the K3, the Line Out level 
can be increased considerably beyond 10.  Although I 
find Line Out at 10 works very well with the DigiKeyer 
input level at 3:00, I have run the Line Out as high 
as 70 without distortion as long as the AGC is set to 
reasonably limit audio levels. 

73, 

   ... Joe, W4TV 
 

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Trevor Smithers
> Sent: Thursday, October 01, 2009 6:49 AM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K3 Line out level and Digikeyer
> 
> 
> For digimodes like WSPR I use a Microham Digikeyer and set 
> the K3 Line Out level to 10, which 
> is the maximum recommended before the possibility of 
> distortion is introduced. At this level I have 
> to set the Digikeyer RX input control to max to obtain proper 
> decoding etc and being at maximum 
> leaves no room for further adjustment.
> 
> I usually like to set in/out controls to around 50% but in 
> this case it would mean setting the K3 
> Line Out to around 40 to be able to reduce the Digikeyer input by 50%
> 
> So, is Line Out level 10 still the max before 
> distortion/saturation of the output transformers occurs 
> or is there any headroom. If 10 is still the number then 
> fine, as the object is to provide the 
> cleanest signal to the DigiKeyer soundcard even if the input 
> does have to be set to max.
> 
> 73
> Trevor  G0KTN 
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