Administrative Regulations on Amateur Radios Article 29
The amateur operator shall transmit his assigned call sign on the transmitting channel of the station at the beginning of each communication, at the end of each communication, and at least every 10 minutes during communications.
中文原文 業餘無線電管理辦法第29條
業餘無線電人員於初次建立通信或通信完畢時，應報明其業餘電臺呼號，通信中至少每隔十分鐘應報其業餘電臺呼號一次。