HDMI-compatible To RF Coaxial Converter Box With Remote Control Signal Transmitter Adaptor Features: Maybe at some certain occasion you need to change the HDMI-compatible signals from DVD/Set-top box Into RF signals. Your PC/DVD/Set-top box with HDMI-compatible can play on old TV that without HDMI-compatible. You can also demonstrate your multimedia documents from your laptop to your audience through a large screen Typrojector, RF converter can easily help you to realize the conversion of HDMI signals into RF signals. Cost effective way to display your DVD/Game/Set-top box( HDMI-compatible source device) on regular or older televisions. Long distance signal transmission can be carried out by the coaxial cable. This converter outputs analog signal, not for ATSC format. The output TV/RF signal frequency is 61.25MHZ. Please use your TV's search channel function to get the signal,then press "SYS" to adjust the format(PAL OR NTSC) to corresponding to your TV until get clear picture and sound. Please take the plastic film out off the remote control before use Before you buy it, please check your TV supported formats to see if it supports one of this TV formats:PAL BG/PAL l/PAL DK/NTSC M, This converter only output this formats. Output picture quality will be lower to RF analog signal(more like 480p). With remote control, you can adjust the output screen up and down and amplitude, adjustable brightness, contrast, chroma. This device does NOT work in the reverse direction. Support input HDMI resolution: 480I/480P/576I/576P/720P /720I /1080I/1080P Package Included: 1 x HDMI-compatible To RF converter 1 x Remote control 1 x Cable 1 x Power supply 1 x English User Manual