DominoEX
A text mode that steps between tones in a way that tolerates poor tuning and fading.
ModeDominoEX
FamilyMultitone data
Audio example12 s
What does it sound like?
Plate 13Multitone data
A gentle, flowing sequence of tones, like a slow ripple of notes.
0 Hz1,0002,0003,000 Hz
12-second example. A clean example made by our own signal generator; signals on the air usually sound noisier.
Field marksTones step relative to the previous toneTolerant of tuning drift
Who uses it?
Amateur radio operators.
Where and when can I hear it?
Various ham frequencies.
Easily confused with
- Thor: THOR adds error correction
- MFSK (MFSK16/32): MFSK16 uses fixed tone positions