Chinese telegraphy doesn't assign Morse codes to characters directly. Instead, each Hanzi is mapped to a four-digit number, and each number is sent in International Morse. The receiver looks up the four-digit code in a codebook to recover the original character.
Este sistema codifica os caracteres de forma indireta, através de uma tabela numérica. Abaixo estão exemplos comuns e os códigos Morse dos algarismos com que são enviados.
The Chinese Telegraph Code was developed in 1871 by Danish astronomer Hans Schjellerup and Chinese telegraph officials. It assigned a unique four-digit number to ~7,000 of the most common Chinese characters, allowing Hanzi to be telegraphed using only the standard 0-9 Morse digits.
Although fax, email, and internet have replaced telegraphic Hanzi transmission, the four-digit codes still appear in some legal documents (notably Hong Kong identity cards) and in academic studies of telegraph history.
Look up the four-digit Chinese Telegraph Code (CTC) for each character, then send each digit using International Morse (e.g., 中 = 0022 = ----- ----- ..--- ..---). The receiver looks up the digits in a CTC table to decode the original character.
No. Hanzi has tens of thousands of characters, far too many for a Morse pattern per character. The four-digit numerical code is the standard workaround.
Yes, in limited contexts: Hong Kong ID cards use CTC numbers as a person's standardized name code, and some legal forms in China and Taiwan still reference them. Operational telegraphy is essentially extinct.
Explore all Morse code variants → Variantes do código Morse pelo mundo
