Where can I find RTTY signals?

To decode RTTY signals you’ll need a shortwave receiver with a BFO (Beat Frequency Oscillator), a way to pipe your radio’s audio into your computer’s sound card, and decoding software . There are several RTTY software packages out there, free, and my favorite is MMTTY.

FT4 Frequencies14.08 MHzFrequency Range14.08 MHz – 14.08 MHzModeUSBModulationGFSKACF—FT4 – Signal Identification Wiki www.sigidwiki.com › wiki

For example, the Russians use a 50 baud /200 Hz system that to the ear, sounds like Baudot. Closer examination with tools for viewing waveforms and other data will show this clearly. Among amateur radio, the most common default mode of RTTY is 170 Hz with 45.45Bd. … Radio Teletype (RTTY) Bandwidth85 Hz,170 Hz,450 Hz,850 HzLocationWorldwideRadio Teletype (RTTY) – Signal Identification Wiki www.sigidwiki.com › wiki › Radio_Teletype_(RTTY)

RTTY (Radio TeleTYpe) is a method of using tones to send digital messages between radios in amateur HF bands (and other services). While it has been around for many years, these days it usually involves using a computer and modulation/demodulation software to send/receive messages.

FT8 Frequencies3.573 MHz,7.074 MHz,10.136 MHz,14.074 MHz,24.915 MHz,50.323 MHz,70.1 MHz,144.174 MHz,1.84 MHz,18.1 MHz,21.074 MHz,28.074 MHz,50.313 MHzFrequency Range1.84 MHz – 144.174 MHzModeUSBModulationGFSKACF—FT8 – Signal Identification Wiki www.sigidwiki.com › wiki

However with the arrival of computers and their greater level of flexibility and sophistication, other more efficient types of digimode are available but despite this, the amateur RTTY is still widely used .

RTTY signals can be found on all HF bands – check the band plans and tune through the “Digital Modes” segments. A number of different modes are used in these band segments, but these modes can be distinguished by ear: RTTY signals are characterised by a regular shifting back and forth between two tone frequencies.