台灣高速鐵路自2007年1月份開始試營運，並於2007年3月全線通車，正式開始營運，同時也啟動核心機電系統的3年DLP(Defect Liability Period)保固期。
在保固期滿，各項維修作業將正式交由台灣高鐵自主負責，台灣高鐵在營運速度達300 Km/h下，對於系統之可靠度及安全性更是重視，因此須對各系統做進一步的體檢與必要的缺失改善。本文將介紹台灣高鐵的無線電系統，並對台灣高鐵的無線電系統進行效能量測與改善，使無線電系統功能能符合高速行駛下之的各種通訊需求，確保台灣高鐵的最高原則-安全。

The THSR (Taiwan High Speed Rail) begins the test operation since January of 2007, and begins commercial operation from Taipei to Zuoying in March of 2007. 3 years of the core system DLP (Defect Liability Period) was to commence in the same time.
When DLP expire, all the maintenance work will transfer to THSR formally. The THSR pays attention to reliability and security of the core system especially under the circumstances that the revenue running speed reaches 300 Km/h, further examination to improve and optimizes for every core system is essential. This paper will be aimed at the introduction of radio system of THSR, and to carry on performance measurement and improvement of Radio System, to satisfy on high speed communication demand of TETRA Radio System of THSR, guarantee the supreme principle of THSR - Safety.

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