Can someone please post functional settings for MMTTY on the flex 6000 series?

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  • Updated 4 years ago
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I am looking for some functional real world MMTTY settings for the flex 6500 so I can close this final piece of my station.  I am an active contester and wish to use multiple slices in N1MM in conjunction with MMTTY in a contest environment using DAX.  I have gotten to a point previously where I can decode rtty, but I have thus far been unsuccessful understanding how to get the radio to key.. vox.. however..  if someone could please assist me with setup scenarios It would help me out, and would add a lot of value to the community.  Or if it exists.. send me a link so I can leverage the instructions. There uses to be a post but the link was dead the last time I checked.  This is the final piece for me to make a full transition to a flex based contesting system.  (No Fl digi.. etc....). Thanks in advance for any subject matter experts who can "show me the light".

Photo of Chris Tate  - N6WM

Chris Tate - N6WM, Elmer

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Posted 4 years ago

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Photo of Eduardo Carvalho - KC8R

Eduardo Carvalho - KC8R

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Official Response

I have a 6300 and have been using 2Tone as the MMTTY replacement with N1MM, but I am guessing the configuration is the same. Below is what I have as my setup:

1. Create an additional serial port on SmartSDR CAT, select PTT as the port type and the pin change type (I have mine set as RTS), ex.: COM5
2. On N1MM go to Config menu, then select "Configure Ports," 
3. On the Hardware tab select the port for the radio then select the radio type
4. On the Hardware tab select a second port that you created for PTT (ex.: COM5), check the box CW/Other, then click on Set. Configure the RTS pin as the PTT, you can fill in the other details as needed. 
5. Go to the Digital Modes tab and configure the settings as needed. If you are using DAX select the digital interfaces as Soundcard.
6. Once you have all your configuration complete, click save to exit the configuration.
7. On N1MM go to the Window menu and select "Digital Interface" to open the decoding window. 
8. Once the Digital Interface window opens, go to the Interface menu and select MMTTY. This should open the MMTTY window.
9. On the Digital Interface window again, go to the Setup menu and select Settings. This will open the settings screen. Make adjustments as necessary. 
10. On the MMTTY window go to the settings and select the DAX channels that you are using to receive and transmit. 
11. The most challenging piece I have found was to adjust the filter on the slice to match the tones on the MMTTY. I have been using DIGL as the mode and the filter centered at 2200 Hz, with the low end at 2000 Hz and high at 2400. Then I set the MMTTY alignment frequency (on the settings described on step 9) to the center of the slice, 2200 in this case. This makes the frequency match the spots.

I hope this brief setup helps you get up and running. Please let me know if you have any question, or need any more detail in any of the steps.


Eduardo - KC8R