HDMI/RCA to RF Modulator Coaxial UHF Converter Adapter w/ANT & Channel Switch for PS2 PS4 NS Xbox Gaming Laptop Fire Stick Cube Roku Blu-ray Chromecast DVR HD Digital AV Video to Analog Coax NTSC TV

I wanted to get rid of Comcast and their rinky dink converter. Thanks to this widget I can use a Fire Stick and still use my older tv in our kitchen.

I finally got this to work, thanks to help here on Amazon. Now I can use a Roku device on my 28 year old TV set!!

I ordered this to use a digital input to supply multiple TV’s. It didn’t work and I couldn’t get it to work and the instructions were techno jargon that was indecipherable. If you don’t know the frequency you want to (broadcast?) the signal at for your tv, then this isn’t for you. I ended up returning it and buying a much simpler one that worked just great. From the instructions I think this is made to power a bank of TV’s such as in a sports bar? Anyway. Avoid it unless you know you need whatever specific fancy stuff it does behind turn rca or hdmi into coax.

I was able to get it transmitting over UHF and onto a TV with only RF input. Composite and HDMI work well. Looks like Composite is a straight analog circuit and the HDMI conversion is quite snappy. The manual and options for this thing are confusing though, and I only got it working via trial and error. If you only want to modulate Composite to RF, just get an old VCR. For HDMI, though? This thing is versatile.

I use it to route a roku device audio and video from the den to bedroom.

Number of stars is a challenge here. On the one hand, this does EXACTLY as the technical specs says. But the reality is that the product is misleading that it is stamped "Full HD" and the description shows the signal going to a TV labeled "HD".This device takes a 1080p HDMI source in and sends the picture OUT over NTSC 480i. This is probably fine for certain use cases but winds up resulting in poor video quality. Furthermore, your TV must have an analog tuner in it.The directions are brief yet highly technical. Despite a solid foundation in basic electronic theory, I had a difficult time understanding the instructions for a basic setup. I set them aside and simply plugged the device in and managed to figure it out.This would absolutely be a five-star product if the instructions were better written AND if the product description made it clear that the resolution of the output was 480i.

Great

I was able to take a wireless Joey and install the HDMI cable into it and have it feed 3 other tv's off the homes cable network.