Dialer
1209
1336
1477
1633
697
770
852
941
Tap a key to hear its tone and append it. Row and column
headers are the two frequencies that key mixes.
Sequence
Speed
Saved sequences
Live decode
—
Decode a recording
Detection tuning
Defaults are the values this page ships with. Nothing
changes until you move a slider.
Higher = less sensitive. Raise it if a noisy line
produces symbols that were never dialled.
Consecutive 10 ms frames that must agree before
a symbol is accepted. Higher = steadier, slower.
Same idea, for decoding an uploaded recording.
Separate from the field logger on purpose: this is an instrument, not a capture tool. Sequences are stored in this browser only.