Answer:

dit

Answer	Crossword Clue
DIT	Bit of Morse code
DIT	Morse bit
DIT	Dah's counterpart in Morse code

DIT	Dah's go-with
DIT	Morse code sound
DIT	Dah's counterpart
DIT	Telegraphed sound
DIT	Morse code tap
DIT	Morse tap
DIT	Telegraphic click
DIT	Telegraph sound

DIT	Morse minimum
DIT	Morse code click
DIT	Dah's partner
DIT	Code word
DIT	Radio code sound