Aircraft Flight Operation Regulations Article 345-1
An aircraft shall be provided with radio communication equipment capable of conducting two-way communications for aerodrome control purposes, for receiving meteorological information at any time during flight; and conducting two-way communication at any time during flight with at least one aeronautical station and any other aeronautical stations on such frequencies as may be prescribed by the appropriate authority.The preceding paragraph shall not apply to free balloons equipped with walkie-talkie devices and operated in an uncontrolled airspace.
中文原文 航空器飛航作業管理規則第345-1條
航空器裝置之通信裝備應備有與機場管制單位雙向通信之能力，且能於飛航中隨時接收氣象資料，並能隨時與至少一處航空電臺或其他類似電臺，使用當地主管機關規定之頻率通話。
自由氣球備有無線電對講機裝備且於非管制空域活動者，不適用前項規定。
自由氣球備有無線電對講機裝備且於非管制空域活動者，不適用前項規定。