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

[Bob McGraw K4TAX]

In MMTTY, check on the drop down menu under OPTIONS, then at the bottom 
of the list,  select SETUP menu, then TX pane.   Be sure the Digital 
Output is about mid scale.   Also, make sure the computer SPKR level is 
about 30 to 50% .

On the K3:   From the MENU the MIC SEL should show LINE IN.  The DATA MD 
should be set for AFSK A and 45 BPS.  The PITCH  value should be 2125 - 
170.    The setting for LINE gain {use the MIC control} should be about 30.

This works for my configuration when running MMTTY.

   73

Bob, K4TAX

On 3/15/2020 12:14 PM, Joe N9OK wrote:
> Can't figure out how to reply to your post Rich in your thread.
> Audio Mark and Shift in MMTTY are identical to the Pitch control settings
> in my K3.
> MAIN:AFSK TX is set to Filter On. This makes no difference for my transmit
> power, however.
>
> 73, Joe N9OK
>
>
> On Sun, Mar 15, 2020 at 12:06 PM Joe N9OK <n9ok at myjdk.com> wrote:
>
>> 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
>>>
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