Fitting operating frequency of Xinsai line high-frequencychannel is decided through sweep checking of the channel.
通过对新赛线高频通道进行扫频试验，选择适合该高频通道的工作频率，有效地减小了该高频通道的衰耗。
2
It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.
他能有效地对抗多径效应，消除符号间干扰，对抗频率选择性衰落，而且信道利用率高。
3
The classic analysis of high-frequency (HF) protection only takes account of the channel delay effect of HF signal, neglects the delay effect of electric traveling wave.