![rtty stations rtty stations](http://w5gw.com/images/RTTY.jpg)
![rtty stations rtty stations](https://www.jeffreykopcak.com/wp-content/uploads/2017/02/Fldigi-Operating-PSK31.png)
This is what is nearly universally used in Contests. Main thing here is to verify the correct Baud Rate. There is very little that needs to be setup other than the correct Device selections.įirst is a top-level screenshot from N1MM using the MMTTY setup with the IC-7600 PLease note that I use mostly Default values. Here are some screenshots of my Working RTTY configuration for the IC-7600.I will provide shots of most of the TABS in MMTTY. I almost always have to go in and select the USB Audio Codec, and that fixes it. Just like the Reception Device, my Transmission Device gets reset to the wrong device when I am not using RTTY. If you only hear one Tone, then you probably have the wrong Transmission Device selected in MMTTY. It is very common NOT to hear anything but a continuous signal tone, if things are not setup correctly. Once the keying starts, you will hear the tone switching between Mark and Space. When you first start the transmission, you will hear a single tone. Bring up N1MM and MMTTY and try to send something using the Function Keys. Turn on the MONITOR button, so you can hear the audio signal. Don’t forget, RTTY is a 100% duty-cycle Mode (like all Key Down on CW), so you do not want to try to use 100 Watts. Set the Power to something like 50 Watts. Once you are receiving, now you can try Transmit. I use the USB Audio Codec device for receiving This seems to get changed, and often needs to be reset when I want to work RTTY.
![rtty stations rtty stations](http://www.radioblvd.com/RTTY/WA7YBShbTUin.jpg)
If you do not, then you probably have the wrong Reception Device selected. Tune some RTTY stations and make sure you see their tones in the MMTTY spectral display. The best way to test the setup is to get on the Air.
#RTTY STATIONS MOD#
In the IC-7600 Menu, I set the DATA1 MOD (under the ACC menu) to “USB” but I see now that this does not seem to matter, presumably because the Radio is in SSB mode and is using audio from the Soundcard.The mark and Space frequencies must be in the SSB audio passband, so you will NOT be using 2125 Hz, but will be using 1775 Hz for Mark, and 170 Hz Shift between Mark and Space tones (for standard 45 Baud RTTY).This will be named “USB Audio CODEC” or something similar in MMTTY. You are going to be using the Soundcard that is internal to the IC-7600 for both Reception and Transmission of RTTY AFSK signals.I use 800 Hz, 500 Hz, and 300 Hz for my three RTTY-AFSK filters You will want to set some filters that are much narrower than you use in SSB Mode. You will instead use normal SSB filters, and can use them as you would under SSB.Since the Radio thinks this is an SSB Mode, you can NOT use the RTTY filters.This is done by pressing the SSB button until you get LSB, then pressing and holding the SSB button, until you see LSB-D1.You want to set the Mode for LSB-D1, which means the first Digital setup under LSB.Here are some tips on the Radio part of the setup: This should work fine, but you need to understand that as far as the Radio is concerned you are NOT using RTTY. If you are not using the special ACC connections on the back of the radio, then you will be using AFSK mode. Here is a quick summary, and a screenshot of my setup, including all of the important TABS under MMTTY Setup. There are some good directions for this in the N1MM+ documentation, so I am not going to go through all the details. I have been using the IC-7600 on RTTY with N1MM+ and the MMTTY application for a couple of years now.