Throb
An unusual text mode that sends pairs of tones in slow pulses.
ModeThrob
FamilyMultitone data
Audio example12 s
What does it sound like?
Plate 68Multitone data
A slow, pulsing, throbbing tone.
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 pulsing in pairsSlow, gentle throbbing rhythm
Who uses it?
Amateur radio experimenters.
Where and when can I hear it?
Various ham frequencies; rarely heard.
Easily confused with
- Olivia, from the same family
- Contestia, from the same family
- MFSK (MFSK16/32), from the same family