Elecraft

[K3] USB Interface

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W0JFR

[K3] USB Interface

I have the USB interface card in my K3. I use the audio out (USB
Microphone) for the MTTY program. Question is how to set the audio
levels. FWIW, I currently have the K3 Line Out set to 5, and the
computer USB Mic level set to around mid-scale. Is there a better
combination for improved dynamic range and low distortion?
Thanks,
- 73, John, N0TA
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Don Wilhelm

Re: [K3] USB Interface

John,

Look back to posts earlier today regarding WSJT-X.

We have been discussing how to set the audio levels for WSJT-X, but the
same thing applies to and all other soundcard digital modes, including
AFSK A - which you should be using with MMTTY. It defaults to LSB,
turns off compression and TX EQ (so you don't have to disturb your SSB
settings). See the manual for the features available with AFSK A mode.

Set the MIC SEL to LINE.

Like all other data modes with the K3 (and other Elecraft gear), set the
audio for 4 bars on the ALC meter with the 5th one flashing. Adjust the
power with the POWER knob.
Ignore the common internet advice (and some software instructions) which
say to "set the power to maximum and use the audio level to control the
power" - that does not work well with Elecraft gear because it is unique
among amateur tranceiver in the way the power is controlled.
Some commercial transceivers control power in the same way as Elecraft
gear, but no other amateur transceivers that I am aware of.

73,
Don W3FPR

On 9/8/2017 3:02 PM, John Reilly wrote:

> I have the USB interface card in my K3. I use the audio out (USB
> Microphone) for the MTTY program. Question is how to set the audio
> levels. FWIW, I currently have the K3 Line Out set to 5, and the
> computer USB Mic level set to around mid-scale. Is there a better
> combination for improved dynamic range and low distortion?
> Thanks,
> - 73, John, N0TA
> ______________________________________________________________
> 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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Ed Muns

Re: [K3] USB Interface

In reply to this post by W0JFR

I think John is asking about LINE OUT of the K3 for TX audio into the PC for MMTTY decode.

73,
Ed W0YK
On Sep 8, 2017 12:50 PM, Don Wilhelm <[hidden email]> wrote:

>
> John,
>
> Look back to posts earlier today regarding WSJT-X.
>
> We have been discussing how to set the audio levels for WSJT-X, but the
> same thing applies to and all other soundcard digital modes, including
> AFSK A - which you should be using with MMTTY. It defaults to LSB,
> turns off compression and TX EQ (so you don't have to disturb your SSB
> settings). See the manual for the features available with AFSK A mode.
>
> Set the MIC SEL to LINE.
>
> Like all other data modes with the K3 (and other Elecraft gear), set the
> audio for 4 bars on the ALC meter with the 5th one flashing. Adjust the
> power with the POWER knob.
> Ignore the common internet advice (and some software instructions) which
> say to "set the power to maximum and use the audio level to control the
> power" - that does not work well with Elecraft gear because it is unique
> among amateur tranceiver in the way the power is controlled.
> Some commercial transceivers control power in the same way as Elecraft
> gear, but no other amateur transceivers that I am aware of.
>
> 73,
> Don W3FPR
>
> On 9/8/2017 3:02 PM, John Reilly wrote:
> > I have the USB interface card in my K3. I use the audio out (USB
> > Microphone) for the MTTY program. Question is how to set the audio
> > levels. FWIW, I currently have the K3 Line Out set to 5, and the
> > computer USB Mic level set to around mid-scale. Is there a better
> > combination for improved dynamic range and low distortion?
> > Thanks,
> > - 73, John, N0TA
> > ______________________________________________________________
> > 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]
> ______________________________________________________________
> 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]

Ed Muns

Re: [K3] USB Interface

In reply to this post by W0JFR

"RX" audio, not TX.

73,
Ed W0YK
On Sep 8, 2017 1:40 PM, Ed Muns <[hidden email]> wrote:

>
> I think John is asking about LINE OUT of the K3 for TX audio into the PC for MMTTY decode.
>
> 73,
> Ed W0YK
> On Sep 8, 2017 12:50 PM, Don Wilhelm <[hidden email]> wrote:
> >
> > John,
> >
> > Look back to posts earlier today regarding WSJT-X.
> >
> > We have been discussing how to set the audio levels for WSJT-X, but the
> > same thing applies to and all other soundcard digital modes, including
> > AFSK A - which you should be using with MMTTY. It defaults to LSB,
> > turns off compression and TX EQ (so you don't have to disturb your SSB
> > settings). See the manual for the features available with AFSK A mode.
> >
> > Set the MIC SEL to LINE.
> >
> > Like all other data modes with the K3 (and other Elecraft gear), set the
> > audio for 4 bars on the ALC meter with the 5th one flashing. Adjust the
> > power with the POWER knob.
> > Ignore the common internet advice (and some software instructions) which
> > say to "set the power to maximum and use the audio level to control the
> > power" - that does not work well with Elecraft gear because it is unique
> > among amateur tranceiver in the way the power is controlled.
> > Some commercial transceivers control power in the same way as Elecraft
> > gear, but no other amateur transceivers that I am aware of.
> >
> > 73,
> > Don W3FPR
> >
> > On 9/8/2017 3:02 PM, John Reilly wrote:
> > > I have the USB interface card in my K3. I use the audio out (USB
> > > Microphone) for the MTTY program. Question is how to set the audio
> > > levels. FWIW, I currently have the K3 Line Out set to 5, and the
> > > computer USB Mic level set to around mid-scale. Is there a better
> > > combination for improved dynamic range and low distortion?
> > > Thanks,
> > > - 73, John, N0TA
> > > ______________________________________________________________
> > > 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]
> > ______________________________________________________________
> > 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]
> ______________________________________________________________
> 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]