In over-the-air VHF broadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.

因为甚高频无线广播中，两个模拟频点之间的频道必须留着不用，为的是不干扰邻近频道。

youdao

In over-the-air VHF broadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.

因为甚高频无线广播中，两个模拟频点之间的频道必须留着不用，为的是不干扰邻近频道。

youdao