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4.3 FAQ - Digital Modes

1. The callsign to grab already scrolled off the screen (RX window); how do I grab it now?

You can pause the RX screen by clicking on the green strip on the left edge. This will pause the input so you can scroll back to where you need to and click on the callsign. The green strip will turn yellow while the input is paused. To turn input to the window back on, click in the yellow strip and everything that was held waiting to be printed to the window will now be displayed in the window and normal processing will resume.

2. In Digital contests the window "Available multipliers and QSOs" does not show any multipliers or QSOs. In Digital contests below the "Multiplier List box" no callsigns are shown.

The Digital sub bands are not defined ('Config | Change Sub bands | Digital Sub Bands'). If they are not defined then nothing will show up in this window in a Digital contest.

3. A message "lost sound" briefly appears in the MMTTY waterfall.

Try to bring up the sound card buffers under Misc settings in the MMTTY setup or the combination of MMTTY and N1MM Logger may be too much for your processor.

4. Why do I have a long delay going from Transmit to Receive?

It could be there are several spaces after the {RX} and by reducing those to just one space (or none) , the drop out from TX to RX shoudl be almost instant. Evidently by putting several spaces after the RX it will cause a longer delay before dropping out.

5. The MMTTY RTTY Engine panel is always on top of the other windows.

This can be changed in the Digital Interface window setup (Setup>Settings, under the General/MMTTY Setup tab). If you don't want MMTTY to be always on top, uncheck the MMTTY Always on Top checkbox. There is also the ability to choose between Full-size (Normal) MMTTY window and Small window (no control panel or menu bar), or you can choose to have only the control panel or only the menu bar displayed in the MMTTY window.

6. Strange things are happening on my 'slow' computer.

Example: Occasionally, the RTTY receiver screen would flicker during reception. Reason: MMTTY requires a minimum of a 133 MHz processor that combined with the main logger which Tom sets as a minimum needed as a 500-800 MHz Pentium II/III computer with 128 MB memory and you could get strange things happening.

7. When exiting the program an "Error" window pops up with "C:/Program Files/MMTTY/061010(*)&&%^%$%$@#".

It seems that one of the saved logged files for MMTTY has become corrupt. Go to the directory that you have pointing to that contains MMTTY. Double click on the MMTTY.exe file and open it up in stand alone then click file and uncheck Log RX File. That will stop the file trying to be written to.. Go in to the the MMTTY directory and look for text file that looks like 06xxxx these are the files that were recorded while using MMTTY each indicating the date .I would delete them.

73's Rick N2AMG

8. Digital Interface file not found error

If you are experiencing a file not found error when trying to load the digital interface please look and see that you have the following files in these locations:

MMVARI.ocx This needs to be in the N1MM logger program directory
MMTTY.exe This file needs to be in the directory where MMTTY has been installed, and which is pointed to by the Path in the Configurer under the Digital Modes tab
MMTTY.ini This file should be in the directory where MMTTY has been installed. If not found, MMTTY will create it
Userpara.ini This file should be in the directory where MMTTY has been installed. If not found, MMTTY will create it

9. I am able to transmit PSK or RTTY with MMTTY but I do not see any received signals displayed on the waterfall or any other screen.

Review your hookup. For starters, plug a jumper from your transceiver's "line out" to your soundcard microphone input...no interface required. If that works, then you have a problem interfacing. If it doesn't work it looks like a more fundamental problem, like the microphone input on the soundcard is not working. As a last resort, make sure you can receive PSK with another program.

Maybe just the microphone input is deselected. Check the following in Windows:
Open Control Panel, Open Multimedia, Click on Recording and make sure the microphone is selected and the slider not at the bottom..

10. The frequency readout does not match the incoming spots in the bandmap on my transceiver

In RTTY, it is the Mark frequency that is spotted and should be entered in your log. If you are using a transceiver with a dedicated RTTY mode (typically for FSK, and sometimes also for AFSK), the radio's dial displays the Mark frequency, and that is the frequency that should be spotted. However, if you are using a transceiver without any dedicated RTTY mode (e.g. with the radio in LSB or USB mode), the frequency readout on the radio will be the (suppressed) carrier frequency. This does not match the incoming spots in the bandmap, and the frequency will not be correct when spotting stations to the DX-cluster.

To correct for the offset in LSB or USB mode, open the DI window's Digital Setup window (Setup>Settings) and check the Use Auto TRX Offset in DI1/2 check box for that DI window. If you are using a dedicated RTTY mode that displays the Mark frequency on the radio's dial, make sure this box is unchecked.

If you use USB for PSK and FSK for RTTY, you may have to check this box when using PSK or other soundcard digital modes, and uncheck it when using FSK RTTY.

11. It appears that CRLF's are displayed as a block character rather than going to the next line.

There is a replacement richtext file on the website ('Download | Other files') that might correct seeing the block characters that represent a linefeed. This is why there are 2 macros: {ENTER} and {ENTERLF}. Some Windows versions would not properly show a linefeed. If something scrolls off the screen because of the use of many linefeeds it is easy to click on the Pause strip and scroll back to see what was missed. One more click brings you back to where you were. There is also a checkbox in the Digital Setup window to "Remove Excess Linefeeds from RX Window" that helps prevent this.

12. How can I make MMTTY/MMVARI remember my com port selection?

In the Configurer (Config>Configure Ports, Telnet Address, Other menu item), under the Hardware tab (where you setup your radio, etc.) place a check in the Digital box for the desired com port. Click the Set button for that port. On the right side of the settings window there will be a box labelled Dig Wnd Nr. Set this to 1 for DI-1, or 2 for DI-2. This will automatically send the com port info to the selected digital engine whenever that DI window is opened.


13. Pressing a function key gives me a "wav file not found" error message

This may happen if you are using AFSK for RTTY, or in sound card modes like PSK31. It indicates that the program is in SSB mode rather than Digital mode (e.g. Mode Control is set to use radio mode and the radio mode is SSB in sound card digital operating modes). Type RTTY or PSK into the call sign box in the Entry window and press Enter to put the program into the requested digital mode - this should change the function key message set from SSB messages (containing the names of wav files) to digital messages (containing {TX} and {RX} macros).

Last Modification: 21 July 2016 09:46:53 EDT by VE3KI.