而当超高频广播出现时，每个频道基于同样的理由，也加上了空闲的“保护频带”。
When UHF broadcasting came along, empty “guard bands” were added to each channel for the same reason.
而当超高频广播出现时，每个频道基于同样的理由，也加上了空闲的“保护频带”。
When UHF broadcasting came along, empty "guard bands" were added to each channel for the same reason.
频率平移电路(172 ~ 188)使得经过带通滤波的若干多通道模拟信号在频域中接邻，而在相邻通道信号之间没有任何保护频带。
A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
如果频带中只有一个信道可用，可以选择使用1 +1热备用配置实现设备保护。
If only one channel is available in the frequency band equipment protection can be optionally implemented with a1 + 1hot standby configuration.
本文中的电压传感器采用电阻分压，可将初级电压直接转化为10v以内的微信号，以供测量保护用，装置具有体积小、传输频带宽、不存在饱和问题、无谐振点等优点。
By adopting resistance divider, the voltage sensor designed in this paper can transform primary voltage into micro-signal less than 10v, which can be used in measurement system directly.
本文中的电压传感器采用电阻分压，可将初级电压直接转化为10v以内的微信号，以供测量保护用，装置具有体积小、传输频带宽、不存在饱和问题、无谐振点等优点。
By adopting resistance divider, the voltage sensor designed in this paper can transform primary voltage into micro-signal less than 10v, which can be used in measurement system directly.
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