This digital HD AV to RF TV modulator converter is designed to convert AV signals to RF signals, allowing you to watch your favorite videos on your TV. It supports VHF and UHF frequencies and is compatible with PAL and NTSC standards. The device is portable and features a high-quality MCU controlled PLL for accurate and stable video carrier and audio subcarrier. It also has an adjustable output level and an LED channel number display. The modulator has a frequency range of 47-870MHz and supports various input resolutions, including 480i, 480p, 576i, 576p, 720p, and 1080i. It is easy to use and provides a reliable connection for your home audio and video needs.