In the ultra high frequency system, the frequency compounder section of the transmitting frequency is operated with DDS/PLL technology.
在甚高频系统中，射频的的频率合成器部分采用DDS/PLL技术。
This paper introduces the relationship between the high electric conductivity and the transmitting frequency and the structure of the composite wire.
文章给出了这种高电导特性与传输频率及导线结构的关系。
For a sea-floor transient electromagnetic exploration system, its maximum transmitting frequency may be chosen as 200 Hz by supposing the sea-floor as horizontal thin conductive plates.
可控源时间域电磁法应用在海底探测，需要确定装置参数，通过实验和理论计算确定了发射频率的最大值；
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