K3 Line out level and Digikeyer

[Trevor Smithers]

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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[Joe Subich, W4TV-4]

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: [hidden email]
> [mailto:[hidden email]] On Behalf Of Trevor Smithers
> Sent: Thursday, October 01, 2009 6:49 AM
> To: [hidden email]
> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[Trevor Smithers]

Thanks for that Joe, reassuring to know that levels higher than 10 can be accommodated without
problem.

>as long as the AGC is set to
>reasonably limit audio levels.
Well, I use AGC-S and have never felt the need to change any of the other agc parameters so
they are all set to default values - presumably this is ok ???

Trevor  G0KTN

-------- Original Message --------


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: [hidden email]
> [mailto:[hidden email]] On Behalf Of Trevor Smithers
> Sent: Thursday, October 01, 2009 6:49 AM
> To: [hidden email]
> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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