haven't had any archives that's been to this frequency

问题描述:

haven't had any archives that's been to this frequency
听写voa时遇到这么一句话:Until now we haven't had any archives that's been to this frequency.
翻译是:截至目前,我们没有任何存档频率如此职高的档案馆.我不能理解那个修饰archives的定语从句“that's been to this frequency”的语法结构,求大神相助.

that's been to this frequency的完整形式是,
that has been to this frequency.相当于:
An archive has been to this frequency.
这里的has been to 是已经达到……的意思.