- The transmitting channel is consisted by local oscillator, up converter, filter, PA, isolator, switch and so on. - 双通道上变频模块包括本振、上变频器、滤波器、放大器、耦合器、隔离器、开关等。 
- Its transmitting channel has coupled output and can be connected to the input of receiving channel, which realizes the system self-check test function. - 双通道上变频模块的发射通路具有耦合输出,可以接到接收通道耦合输入,用来形成发射通道与接收通道的自闭环,完成系统自检测试功能。 
- The transmitting channel includes international merchandise trade and international financial trade, etc. - 和传导渠道,包括国际商品贸易渠道和国际金融交易渠道等。