[Elecraft] k3 and mmtty setup

km5ps jmcbee at km5ps.com
Sat Jul 23 21:39:55 EDT 2011


On 7/23/2011 1:30 PM, Don Wilhelm wrote:
> John,
>
> I just looked at the instructions on that link.  One thing that is not 
> mentioned on the K3 setup is that you must set the K3 mark frequency 
> and shift to match the mark frequency and shift settings in MMTTY - to 
> do that, while in DATA A mode, hold the PITCH button and rotate VFO A 
> to indicate 2125 - 170.
> Also check that you are on LSB for DATA mode.
>
> As far as PTT, set CONFIG: PTT-KEY to DTR - off.    The K3 TX LED 
> should come on when MMTTY is transmitting (set VOX off).
>
> I believe those instructions have an error - it seems to tell you to 
> set "Ways to send" to Character out - which would send KY commands 
> with ASCII text to the K3.  I believe "Ways to send" should be set to 
> Line Out instead.
> The K3 will not accept an ASCII string in AFSK A data mode - but will 
> in FSK-D data sub-mode.   Perhaps someone more familiar with MMTTY 
> than I can comment on why "Ways to send" should be set to Character Out.
>
> You can use a stereo cable between the computer and K3 line in jack - 
> yes, the jack is marked mono, because only the left channel is 
> connected, but the jack is stereo.  There may be a situation with your 
> computer where it does not like the mono plug in the line out, so try 
> using a stereo cable.  You can plug the cable from line-out into an 
> audio amplifier to see if you are getting sound from the line out.
>
> I hope that helps.
>
>
>
> On 7/23/2011 12:08 PM, km5ps wrote:
>> Hello- I am trying to get MMTTY and my k3 working.  I have found a setup
>> page for k3 and mmtty and have went threw the pages twice and have all
>> of the setting as stated at http://www.n3me.net/elecraftk3andmmtty.htm.
>> My rig will key, but not for sure if it is transmitting rtty.  The pwr
>> meter does not ever move from zero.  I have the pwr on rig set at 50w.
>> The instruction at the website listed above says does not state that in
>> the k3 config menu.  I have found other places that state k3 PPT-KEY
>> should be set to  DTR-PTT.  But that is not an option in the config menu
>> of the k3 on the PTT-KEY menu.  Anyone who has this working with mmtty
>> could you give your setting for the k3 and mmtty program.  I had this
>> working n1mm once, but then it quit working for some reason.   Also
>> should mention that I have a mon cable from k3 line in to sound card
>> line out and a stereo cable from k3 line out to line in of sound card.
>>
>>
Thanks to everyone who responded.  I have it working now.  The rig is 
putting out 50w and I can hear the rtty sound coming out of speakers.   
Now just have to get it working with n1mm.   Thanks again to all..

73's
John


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