This TV modulator is a RF converter comes with hdmi input F type female ( antenna / ANT ) coax output that converts hd digital signals into anolog coaxial signals that helping hook up your your streaming media players ( Apple TV, Amazon Fire Stick , Fire TV, Roku , etc.) , game consoles ( PS3 , PS4 , Xbox 360 , Xbox One etc.), DVD , Blu-ray players , VCR , Laptop , PC or computer etc. newer HDMI-equipped components with an old TV or video equipment ; Then you can watch videos / play games / sharing old pictures / photos on channel 3 on older TV models (CRT) and other non-HDMI devices ; And you can achieve sharing program videos / pictures on other tvs in diffrent rooms or farther away from the hdmi video source with the ultra long distance transmission of RF signal because it is also a great HDMI extender <b></b><br><b>Specs : </b> <br>TV / RF Output Signal Frequency: 61.25MHZ <br>Supports Input HDMI Resolution:480I/480P/576I/576P/720P/720I/1080I/1080P <br>Support Output Formats:PAL-BG,PAL-l,PAL-DK and NTSC-M <br>Sound: mono <br><br><b>Note:</b> <br>Please use the channel search of TV to get the signal, then press "SYS" to switch PAL / NTSC to match your TV signal until the picture and sound of tv are clear (The default setting of product is grayscale PAL and find "USER" from "MODE"). <br>Please check your TV supported formats before placing an order because this converter only output PAL-BG , PAL-l , PAL-DK and NTSC-M these four TV formats, if your TV does NOT support one of these 4 , the converter will not work ! And this is HDMI to RF coaxial converter which does NOT work under the reverse direction,please don't use it to convert RF signal into HDMI signal! <br>If the output of your tv is BNC, you can find a hdmi to bnc or bnc to hdmi converter in our store. <br><br><b>Packages: </b> <br>1x RF Modulator Converter <br>1x Remote Control <br>1x User Manual <br>1x Power Supply