TE277用于測(cè)量和描述電子4K（UHD TV）攝像機(jī)的頻率響應(yīng)。

測(cè)試圖由50個(gè)多波場(chǎng)場(chǎng)組成，分布在16：9的圖像區(qū)域。 這些模塊在水平和垂直方向上排列以測(cè)量?jī)蓚€(gè)方向上的分辨率。所有字段都以分辨率（每個(gè)圖像高度的周期）進(jìn)行標(biāo)記。一個(gè)循環(huán)由一條黑線和一條白線組成。

中間的兩行以不同的方式排列。上排考慮到，最高分辨率在圖片的中間。因此，2000 cph場(chǎng)在中間，頻率向兩側(cè)減小。

頻率從左側(cè)的100cph增加到右側(cè)的2000cph。 該行可用于測(cè)量和描述被測(cè)相機(jī)的頻率響應(yīng)。

The TE277 is designed to measure and describe the frequency response of an electronic 4K (UHD TV) camera.

The test chart consists of 50 multiburst fields, which are distributed over 16:9 picture area. The fields are arranged in horizontal and vertical direction to measure resolution in both directions. All fields are labeled with the resolution in cycles per picture height. A cycle consists of one black and one white line.

The two rows in the middle are arranged differently. The upper row takes into account, that the highest resolution is in the middle of the picture. Therefore the 2000 cph field is in the middle and frequencies decrease to both sides.

In the lover row the frequencies increase from the 100 cph on the left to the 2000 cph on the right. The row can be used to measure and describe the frequency response of the camera under test.