The principle and method for calibrating the frequency by means of colour subcarrier signal of broadcast TV are introduced in detail, and the corresponding measurement accuracy is given in this paper.

本文较详细介绍利用广播电视彩色付载频信号进行校频的原理和方法，并给出相应的测量精度。

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This paper presents a "waveform display method" for checking the colour TV Chrominance Delay Line in the factory, and introduces a simple, practical and self-made test-signal generator.

本文提出一种适用于工厂检测彩色电视色度延迟线的“波形方法”，并介绍了一种自制的简易实用的测试信号源。

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