K3 ALC

[kn3e]

Can someone tell me if  there is an instruction on how to set the ALC on a
K3 with  the latest Elecraft sound card installed? The original manual was
written B4 the internal sound card was an option. I am operating FT8 mode
and it worked fine with my signal Link, but now I suspect that I am
splattering. I am using the K3 in the data mode running about 35 watts.

Ed KN3E
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[Nr4c]

You’re sure to get Dons response to this.  But, it’s really the same as before.

Using the USB cable for audio be sure to select USB AUDIO CODEC as sound device for both recording and playback. Now bring up the Windows mixer and set the level for playback (transmit) to about 30%. Now adjust the Line In (Mic Gain) to get 4 solid bars and fifth flickering. If the granularity is too coarse, set windows mixer level lower, maybe 20%. Try the radio again. I have set my Windows level quite low but get fine control with K3S Lime In Control. It is very stable and repeatable. As before, set Power with PWR knob on radio.

Sent from my iPhone
...nr4c. bill

> On Mar 21, 2018, at 11:40 PM, Ed Hoeck <[hidden email]> wrote:
>
> Can someone tell me if  there is an instruction on how to set the ALC on a
> K3 with  the latest Elecraft sound card installed? The original manual was
> written B4 the internal sound card was an option. I am operating FT8 mode
> and it worked fine with my signal Link, but now I suspect that I am
> splattering. I am using the K3 in the data mode running about 35 watts.
>
> Ed KN3E
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

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[Don Wilhelm]

Yes, I will provide a response.  Bill is entirely correct.
Select the proper soundcard in your application - in the case of the
internal soundcard in the K3S (or upgraded K3) it is "USB AUDIO CODEC".

Then set the audio levels in the various controls as Bill indicated -
midrange or a bit below to produce 4 bars on the ALC meter with the 5th
bar flashing.  Adjust the power with the K3S power knob.

You may have up to 3 gain controls to contend with and juggle.  1) the
software application may have a slider (some are marked "POWER"), 2) the
OS soundcard audio output (speaker or line out) level, and 3) the K3/K3S
line in level.  Set them all at midrange or a bit below so nothing is
overloaded until you can achieve the 4 bars solid with the 5th bar flashing.

You can do that adjustment in TX TEST mode, so you do not bother folks
on the band with your testing.

For more information on the "why" of all this, go to my website
www.w3fpr.com and in the left column, scroll down to the last entry.
Click on that link to take you to the article.

73,
Don W3FPR

On 3/22/2018 8:57 AM, Nr4c wrote:
> You’re sure to get Dons response to this.  But, it’s really the same as before.
>
> Using the USB cable for audio be sure to select USB AUDIO CODEC as sound device for both recording and playback. Now bring up the Windows mixer and set the level for playback (transmit) to about 30%. Now adjust the Line In (Mic Gain) to get 4 solid bars and fifth flickering. If the granularity is too coarse, set windows mixer level lower, maybe 20%. Try the radio again. I have set my Windows level quite low but get fine control with K3S Lime In Control. It is very stable and repeatable. As before, set Power with PWR knob on radio.
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