Abstract: A Ka-band color-TV delivery technique is introduced, which is suited for news reports or live program. Based on the equation of image quality and its signal-to-noise ratio, the fading margin of system is calculated theoretically. System scheme and key technology are recommended. Using state-of-the-art technologies, the demonstrator with low cost isdeveloped, and its behavior is evaluated. Millimeter-wave components applied to this system are described, including oscillator, mixer, antenna and duplexer et al. This demonstrator is low cost, easy to install and convenient to use. The system communication distance exceeds 1 km with image quality of 4.5-class.