Again, you’ll have to input the correct RTTY parameters such as baud rate and shift into the program along with adjusting your VFO carefully.
RTTY uses the Baudot code, invented before radio even existed, and still widely used throughout the world. Another software available for decoding RTTY is Fldigi. Note that USB is used in some parts of the world, especially in Europe.
Modern RTTY software has simple controls to reverse received signals. The FUNcube is a software defined radio similar to the RTL-SDR, but with better. All of these RTTY software packages will work with the 101's USB link, but need some setting up. All you will see is random characters that make no sense at all. Decoding RTTY With Digital Master And A SDRplay RSP1A SDR Receiver. 2Tone gives excellent decoding under difficult conditions - it helps if you have more than one decoder running. DXlog is very good software now, and I think they allow other decoders now in parallel on RX. For RTTY contesting, at the moment I use N1MM+ with MMTTY, FLdigi and 2Tone, or alternatively DXlog with MMVARI. You generate the AFSK TX tones with one program, and because the RX audio from the 101 is passing through the same sound card, as many other decoders as you like can access the RX tones simultaneously. However the best plan is to run MMTTY in one window, and a newer program like FLdigi, 2Tone, MixW, Gritty, etc in second or third RX windows. GRITTY is an RTTY decoding program based on the technology. I currently have the program running continuously and uploading NAVTEX messages to an online database. All you need is a shortwave radio and a computer to begin decoding signals yourself. MMTTY and MMVARI are old programs - newer RTTY software can offer improved decoding under noisy condx, QSB, flutter, etc. NAVTEX decoder is an imaginitively named NAVTEX software decoder for NAVTEX transmissions. Hi Rich I guess it depends if you want to use RTTY for contesting or DXing - however I would guess 95% of RTTY use in 2020 is now during contests.