HI in Morse Code

HI is one of the most common words sent in Morse code — and for a special reason. In amateur radio culture, "HI HI" is the Morse operator's way of laughing. When something is funny on the air, operators tap out HI HI instead of saying "ha ha." It's a tradition that goes back over a century.

Letter Breakdown

HI consists of just two letters, both among the simplest in the entire Morse alphabet:

Why HI is Special in Morse Code

The letter H is four dots (····) and I is two dots (··) — making HI one of the most rhythmically satisfying sounds in Morse code. Experienced operators can recognize it instantly by ear. The full word takes less than half a second to send at 20 WPM.

HI vs. HELLO — Which to Use?

• HI — Quick, casual, used constantly on amateur radio. Very fast to send.
• HELLO — More formal, used in demonstrations or when the full word is needed for clarity.
• HI HI — The CW laugh. Never used as a greeting, always as an expression of amusement.

Try It Yourself

Type HI into our translator and hear it instantly — then try HI HI and listen to the rhythm.

Open Morse Code Translator