一些无线电台音频的中继站，家庭无线AV影音系统。
Some audio radio relay station , home wireless AV audio-visual system .
无线通信同频中继站的频谱监测、自激检测与隔离度测试功能单元设计
A Unit with Functions of Spectrum Monitoring , Self-excitation Detection and Isolation Degree Test for Wireless Relay Station
无线中继站