你无法扩展4285A的范围。
您可以切换到低至20 Hz和高达1 MHz的4284A，否则GPIB命令与4285A兼容（显然是来自同一部门的姐妹产品）。
4284A现在已经过时，但在二手市场上很容易买到。
以上来自于谷歌翻译
以下为原文
You can NOT extend the range of a 4285A. You can switch to a 4284A which does down to 20 Hz and up to 1 MHz and is otherwise GPIB command compatible to the 4285A (obviously a sister product from the same division). The 4284A is now obsolete but readily available on used markets.
你无法扩展4285A的范围。
您可以切换到低至20 Hz和高达1 MHz的4284A，否则GPIB命令与4285A兼容（显然是来自同一部门的姐妹产品）。
4284A现在已经过时，但在二手市场上很容易买到。
以上来自于谷歌翻译
以下为原文
You can NOT extend the range of a 4285A. You can switch to a 4284A which does down to 20 Hz and up to 1 MHz and is otherwise GPIB command compatible to the 4285A (obviously a sister product from the same division). The 4284A is now obsolete but readily available on used markets.
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