幅頻測(cè)試圖卡簡(jiǎn)介

TE87是專門做視頻幅度的測(cè)量設(shè)計(jì)的。在灰色背景區(qū)域上有在九個(gè)位置不同白色，灰色和黑色塊。

The TE87 is designed to do video amplitude measurements. On a gray background there are white, gray and black patches in nine positions in the field.