This is a mode that was co-authored by Nobel Prize Laureate Professor Joe Taylor, K1JT as part of the WSJT ( Weak Signal (K1) JT) suite. The images show the most common variant(s) of the mode, although some have many different variants! Bear in mind that this list is not exhaustive and there will be many modes not covered (yet)įT8 & FT4 (F ranke- Taylor design, 8 ( 4) FSK modulation)įT8 Audio Samples (Click on desired format): ogg - mp3 - wavįT4 Audio Samples (Click on desired format): ogg - mp3 - wavĢ017 saw the birth and meteoric rise in popularity of a new mode called FT8. Below you will see images of each mode together with some brief notes on the mode. With that in mind I went on the bands and captured images of the most common digital modes in use at the moment. Most of the decoding software uses a visual ‘waterfall’ display to facilitate easy tuning and identification. One of the main problems encountered by the newcomer to digital modes (or digimodes as they are known) is how to identify what they are seeing / hearing. There are new modes being invented all the time and keeping track of these is could turn into a full time job! With the surge of data modes, there has been an equal multitude of decoding software, some free, others not with which to receive and transmit these modes.
These can be purchased fairly cheaply on eBay, or you could make one your self. Use an isolated audio interface for the best results. This, however, is not recommended as any other room sounds will be picked up and either transmitted or interfere with the received signal.
In fact, you can miss out the audio lead and use the microphone to pick up the sound from the speakers. Because every PC, laptop and mobile device has built in sound capability, all you really need is your radio and an audio lead to connect from the sound device to the radio. For some, this has been the difference between being able to make contacts on air or not.
Over the past few years, the number of operators using one of the numerous forms of data (or digimode) has exploded. Digital modes are becoming more and more popular on the amateur bands.
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