RF Modulator - HDMI to coax converter will hook up your streaming media players ( Apple TV, Amazon Fire Stick , Fire TV, Roku , etc.) , game consoles ( PS3 , PS4 , PS5 , Xbox 360 , Xbox One etc.), DVD , Blu-ray players , VCR , Laptop , PC or computer etc. newer HDMI-equipped components with an older TV or video equipment; Then you can watch videos / play games / sharing old pictures / photos on channel 3 on old TV models (CRT) and other non-HDMI devices. | HDMI to RF Coaxial Cable Adapter for TV - Convert HDMI digital signals into VHF analog TV ( RF ) signals which are great HDMI extenders that will carry out ultra long distance transmission of HDMI signals , then you can achieve sharing program videos / pictures on other tvs in diffrent rooms or farther away from the hdmi video source. | RF HDMI Modulator - HDMI in F Type Female ANT ( antenna ) out with coaxial RF analog signals, Plug and Play , easily & reliably connect your new HDMI devices to RF coax display . | HDMI Modulator - Switch the output screen up and down as well as amplitude , brightness , contrast and chroma via the remote control with the zoom function ;(the image quality will be lower than RF analog signals (more like 480p); NOT applicable to ATSC format !) | HDMI in RF Out - 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!