[Elecraft] K3 w/KIO3B has confusing RTTY transmit behavior

[Joe N9OK]

Line In is selected, I should have included that in my original posting.
73, Joe N9OK


On Sun, Mar 15, 2020 at 11:42 AM Joe N9OK <n9ok at myjdk.com> wrote:

> Hi, I've recently upgraded my K3 with numerous upgrades including a KIO3B
> board. I've successfully configured most of what I need but RTTY has been a
> problem.
>
> What I see is that I am able to transmit power in RTTY mode if my K3 is
> set into *DATA A* mode. If I set my K3 to *AFSK A* mode, the radio has
> the appearance of transmitting in RTTY mode but there is no power. IE, TX
> illuminates, the ACL meter moves. But Monitor is silent and there is no RF
> power. MIC gain is set the same for both modes. VOX is set for both (not
> PTT).
>
> The problem first showed up in DXLAB WinWarbler. However, I've confirmed
> the exact same problem occurs when I am running a stand-alone MMTTY
> executable.
>
> I realize that I could use an external FSK interface. But I"m looking for
> a simple setup, and  the documentation I've seen indicates that I should be
> able to obtain output power using *AFSK A* mode.
>
> It appears to me that there is an audio routing issue in my K3. However,
> that seems unlikely, as others would have reported the issue and it would
> have been corrected. What I'm hoping is that there is a simple setup issue
> that someone can direct me towards.
>
> Any ideas would be extremely appreciated.
>
> 73, Joe N9OK
>