HDMI/RCA to RF Modulator Coaxial UHF Converter Adapter w/Channel Switch for PS2 PS3 PS4 NS Xbox Gaming Laptop Fire Stick Cube Roku Blu-ray Chromecast DVR HD Digital AV Video to Analog Coax NTSC TV

Added: Have been using for well over two years and still working perfectly.This product puts out a very good and clear picture when connected straight to a TV set. The modulator is hard to setup and the instructions are not clear. One review I read said you have to figure out how to set it up before you can understand the instructions. I think that is very accurate however I haven't figured out the instructions and I have it set up. I was able to make it work but not on the channel I wished to use. (eventually I think I'll get it).My home has a commercial modulator system with 16 channels in o

I used this to connect a fire stick via HDMI to a dinky little CRT television with only a coaxial input. After a few minutes of messing with the buttons, I got a perfect picture and sound. It does not require an external digital tuner for the television. This unit works with both PAL and NTSC frequencies so if it isn't working right make sure you switch to the correct region. The unit arrived set on PAL and I was getting a distorted picture and loud hissing. After realizing I had to switch to NTSC it started working great. HDMI and composite in both work flawlessly.Build quality is not great,

This works well but will not add in audio from RCA jacks when using HDMI.Also this device stopped working 3 months after I started using it and I can not get it repaired or replaced!

TLDR: This is a good box, the signal is excellent quality, the documentation is a little obtuse, and there are technical issues that might affect your installation.Details: The box works just fine...mostly. I could replicate the audio problem (static on the audio signal), and it seems that some of the channels, but not all, will sound scratchy if you tune the TV first, and then tune the box to match. changing the channel on my TV to a different channel, and then coming back to the desired channel cleared the problem for me, but your mileage may vary.The documentation isn't super user friendly,

Was exactly what I needed and it worked great for about 4 months. Now, even with no inputs attached the output has a very load buzz. Drowns out any input that you attach. Was working previously. What a bummer.

It took me a while to figure it out, but once I did it works great.One description says output to channels 2 or 3. But the output can be set to any channel.First, press the Lock button to unlock the ability to change the settings. Then use the instruction sheet to find the channel group for the desired output channel. Press up and down to get the desired output channel. Note 03 is different than 3 — there’s a reference to this on the instruction sheet. Finally press the lock button again to lock the settings.I couldn’t find any instructions regarding the RF In port. After some playing I believ

Purchase this sometime ago still working.

It comes with a basic manual, but has so many options that instructions are not clear to me. With trial and error, I quickly had it working but not sure what settings are in place.Compared to what I used previously, the device is smaller and easier to find room for.It seems to be well constructed, and was packaged well from manufacturer.I'm using it to blend security camera content in with anntena channels through all rooms of the house.In this first week of use, I'm pleased with it.