CW abbreviation · Greetings & sign-off

CUL in Morse code

Informal CW closer meaning 'see you later'. Implies expecting another QSO with this operator.

Morse rendering

-.-. ..- .-..

Sent letter-by-letter with standard inter-letter gaps.

What it saves you on the air

This is the whole reason CW abbreviations exist. Sending CUL instead of spelling out “See you later” cuts 67% of the airtime — 68 dot-units of keying saved every time you send it.

SpeedCUL“See you later”Saved
13 WPM 3.0s 9.3s 6.3s
20 WPM 2.0s 6.1s 4.1s
25 WPM 1.6s 4.8s 3.3s

Timed with standard spacing: dit 1 unit, dah 3, letter gap 3, word gap 7. Work out any other speed on the timing calculator.

Meaning

CUL — See you later

When this is used

Sent when the operator expects to hear the other station again — same band same time tomorrow, next contest, next sked. Less formal than '73 SK'.

Examples

On the airPlain English
CUL OM 73 See you later sir, best regards.
CUL ON 20 See you later on 20m.

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