Radioteletype (RTTY — often pronounced “Ritty” ) is a venerable data communication mode that remains in wide use today among radio amateurs. While RTTY does not support the features of newer computer-based data modes, it is well suited for keyboard to-keyboard chats with other stations. It is also the most popular mode for worldwide digital contests and remains in common use among DXers and DXpeditions. RTTY was originally designed for use with mechanical teleprinters, predating personal computers by several decades. Today, Amateur Radio RTTY uses soundcard-equipped computers and dedicated RTTY software.
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Frequency Modes/Activities
1.800-2.000 CW
1.800-1.810 Digital
1.810 QRP CW calling frequency
1.843-2.000 SSB, SSTV and other wideband modes
1.910 SSB QRP
1.995-2.000 Experimental
1.999-2.000 Beacons
3.500-3.510 CW DX window
3.560 QRP CW calling frequency
3.570-3.600 RTTY/Data
3.585-3.600 Automatically controlled data stations
3.590 RTTY/Data DX
3.790-3.800 DX window
3.845 SSTV
3.885 AM calling frequency
3.985 QRP SSB calling frequency
7.030 QRP CW calling frequency
7.040 RTTY/Data DX
7.080-7.125 RTTY/Data
7.100-7.105 Automatically controlled data stations
7.171 SSTV
7.285 QRP SSB calling frequency
7.290 AM calling frequency
10.106 QRP CW calling frequency
10.130-10.140 RTTY/Data
10.140-10.150 Automatically controlled data stations
14.060 QRP CW calling frequency
14.070-14.095 RTTY/Data
14.095-14.0995 Automatically controlled data stations
14.100 IBP/NCDXF beacons
14.1005-14.112 Automatically controlled data stations
14.230 SSTV
14.285 QRP SSB calling frequency
14.286 AM calling frequency
18.100-18.105 RTTY /Data
18.105-18.110 Automatically controlled data stations
18.110 IBP/NCDXF beacons
21.060 QRP CW calling frequency
21.070-21.110 RTTY/Data
21.090-21.100 Automatically controlled data stations
21.150 IBP/NCDXF beacons
21.340 SSTV
21.385 QRP SSB calling frequency
24.920-24.925 RTTY/Data
24.925-24.930 Automatically controlled data stations
24.930 IBP/NCDXF beacons
28.060 QRP CW calling frequency
28.070-28.120 RTTY/Data
28.120-28.189 Automatically controlled data stations
28.190-28.225 Beacons
28.200 IBP/NCDXF beacons
28.385 QRP SSB calling frequency (Technician class voice frequencies between 28.300 and 28.500 – (NO AM OR FM- SSB ONLY for Technician class!)
28.680 SSTV
29.000-29.200 AM
29.300-29.510 Satellite downlinks
29.520-29.580 Repeater inputs
29.600 FM simplex
29.620-29.680 Repeater outputs