field set · brass key · 700 Hz

Morse Key

units sent 0 · wpm 18

inked tape · reading right to left

manipulate the key

press & hold — long is a dah

sidetone indicator

SILENT

key up

Transmit

message

—

Set

speed 18 wpm pitch 700 Hz volume 0.55

A dit is one unit, a dah three; letter gap three, word gap seven. The tape is drawn from those same unit lengths.

Reference

webaudio sidetone · scheduled envelope · carriage-return tape043 / 100