Mike,

We need more information - there are a lot of possibilities.

It sounds like you do not have enough audio drive to the K3.

How have you connected to the K3?
Are you connecting to the K3 Line-in from the soundcard Line-out?
Are you using an interface box or just a soundcard?
If you are using an interface box, have you configured it for line level 
output - most come configured for microphone level which is a much lower 
AF voltage than line level.

You must drive the audio to the K3 sufficiently high to produce 4 bars 
on the ALC meter with the 5th bar flashing.  Ignore the common advice 
(valid for other radios) to use the audio level to produce your desired 
output - with the K3, set the power level with the power knob and adjust 
the audio drive to produce the 4 to 5 bars of ALC indication.

There is a separate Line-in selection setting for the K3 in the menu.  
Adjust the level with the "MIC" knob.

73,
Don W3FPR

On 7/8/2011 6:30 PM, Mike wrote:
> 3rd attempt . I dunno what's going on here.
>
> So I went to work some RTTY today using MMTTY with the K3, and can't get it to
> transmit. I'm using AFSK A, 45 baud, the mark and space freqs are the same in 
> the
> program and the rig, the correct sound card is selected, nothing is muted, 
> VOX is on.
> MMTTY is set to use sound.
>
> The MMTTY tuning indicator looks like I'm transmitting, but the rig isn't 
> getting the
> sound - no diddle. The K3 meter bars all go blank.
>
> What am I missing? RX is fine.
>
> 73, Mike NF4L
>
> On 7/8/2011 6:08 PM, Mike wrote:
>> Trying to troubleshoot email glitch.
>>
>> 73, Mike NF4L
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